• 2010 Mazda 3

    When the first-generation Mazda 3 was released, it introduced a level of driving pleasure and sense of quality which exceeded its class. Five years later, total sales have surpassed 1.8 million units and the Mazda 3 has won a total of 90 automobile awards around the globe. The new Mazda 3 builds on the virtues of the first generation and reflects increasing worries about environmental issues, the rapid expansion of motorization, and growing diversity in the criteria people use to value cars. Development was carried out by R&D staff in Japan, the US, and Europe working together to reflect Mazda’s long-term vision for technology development, “Sustainable Zoom-Zoom,” which aims to achieve harmony between driving pleasure and environmental and safety features. As a result, the all-new Mazda 3 evolves the original model’s acclaimed sporty driving and design, and achieves top class environmental and safety performance.

    Program Manager Yoshiyuki Maeda says, “We focused on achieving an exhilarating experience that drivers would sense directly. We targeted dynamic driving performance that responds to the driver’s intention and excellent environmental and safety features that offer pride and confidence whenever the driver is behind the wheel. In order to create exhilaration in every element of the vehicle, we worked to enhance each aspect of the driving quality.”

    Design: inheriting the Mazda 3′s established identity while making it more expressive

    The design concept for the new Mazda 3 was “remaining faithful to an inherited identity while evolving the design to make it more expressive.” While retaining some of the original model’s dynamic lines, richer expression was sought to create a more emotional design. As a result, we achieved a powerful design that enhances recognition of Mazda’s unique value.

    Exterior design – expressive and emotional styling

    A distinctive new front fascia is formed by the 5-point grille and openings at the front corners. These design cues combine with the sculpted shape of the hood and the bold, expressive lines that connect the hood to the front pillars. All the lines seem to flow into the center just below the 5-point grille, which creates a stronger expression of power and dynamism. From the side, the front fender line smoothly morphs into the beltline, clearly identifying the vehicle as a Mazda and communicating dynamism. The line of the side sill curves up and seems to connect with the rear spoiler to emphasize the vehicle’s compact size and express its agility. In order to make the surface more expressive, Mazda designers slightly elaborated the depth of the hood edge, front fenders and the three-dimensional shape of the protruding body sides, carefully crafting curves that subtly reflect changes in natural light.

    The rear view boasts a sporty design with wide stance. The strongest features are the protruding shoulders and emphasized center-focus design. This concept was carried over from the first generation Mazda 3 and made bolder to represent expressiveness. All the lines of the rear view are designed to concentrate on the brand symbol in the center. The impressive C-pillar design was also inherited from the first-generation Mazda 3 and made more prominent. This was made possible by Mazda’s expertise in stamping technology.

    Interior design – sophisticated, sporty, and high quality

    Inside the all-new Mazda 3 is a sporty yet highly refined cabin. The dashboard sweeps out from the center toward both sides with dynamic flair as though it is flexing powerful muscles. The large center display and controls are laid out around the driver to deliver just the right feeling of snugness. The angle of the center panel was adjusted after careful analysis of the driver’s hand movement, producing a more stylish and dynamic design. A soft, wood grained surface with minimized parting lines on the top of the dashboard enhances the interior quality. The new interactive lighting control enhances the driver’s connection with the vehicle.

    Driving dynamics – The evolution to a more sophisticated sporty ride

    The development theme for the all-new Mazda 3′s dynamic performance was “exhilarating driving.” It refers to the satisfaction derived when a car acts in perfect concert with the driver’s intentions. It could also be described as the sense of accomplishment derived when the driver can handle the car easily and have it respond exactly as desired to their will.

    Toward this end, the development team didn’t settle for merely adding small changes to the already high levels of body rigidity and driving performance. Rather, they made every effort to completely eliminate all negative aspects, from the engine noise, vibration in the body and road noise. At the same time, the team retained all positive aspects including the sound of the engine, the feeling of acceleration, the quality of brake response and control and the road holding sensations.

    Powertrains for all driving experiences

    The powertrains combine Mazda’s typical Zoom-Zoom driving experience with excellent environmental performance to provide exhilarating driving. They transmit just the right amount of G force that perfectly matches the vehicle’s actual acceleration. This provides the driver with a more refined experience of oneness with the car. The new engine line up has been tailored for European customers and now includes the newly developed MZR-CD 2.2-litre turbo diesel engine, carried over from the all-new Mazda 6, in addition to the MZR-1.6-litre and 2.0-litre gasoline engines and the MZ-CD 1.6-litre turbo diesel. It is a high-performance clean diesel engine with top class output, fuel economy and quietness. The MZR-CD 2.2-litre turbo diesel engine will be offered in two variants: a high power version with a maximum torque of 400 Nm/1,800-3,000 rpm and a maximum output of 136 kW (185 PS)/3500 rpm, and a standard power version with a maximum torque of 360 Nm/1,800-2,600 rpm and a maximum output of 110 kW (150 PS)/3500 rpm. Both versions have outstanding clean emissions performance, comply with the Euro Stage 5 regulations and feature a Mazda developed unique Diesel Particulate Filter (DPF) technology for more efficient regeneration. Fuel economy is also greatly improved by 7 to 10 percent compared to the MZR-CD 2.0-litre engine equipped in the existing model, attaining 5.4 l/100 km for the standard power version and 5.6 l/100 km for the high power version.

    Catalyst that uses single nanotechnology

    The MZR 2.0-litre petrol engine underfloor catalyst is the world’s first vehicle catalyst to be constructed with single nanotechnology, which controls even finer materials structures than nanotechnology. It is used to embed individual particles of precious metals, which are less than 5 nanometers in diameter, into the catalyst base material. This new development enables Mazda to reduce the amount of expensive precious metals such as platinum and palladium by 70 to 90 percent without impairing catalyst performance. The catalyst is an important part of Mazda’s efforts to reduce reliance on limited resources.

    Power steering, suspension and brake systems

    To deliver just the right balance between fuel economy, light steering-wheel operation and a feeling of stability, all configurations of the all-new Madza3 are equipped with the Electro-Hydraulic Power Assist Steering system (EHPAS) that has earned high acclaim on the first generation Mazda 3. The suspension is based on the first generation Mazda 3 system, and has been enhanced to ensure even nimbler response to steering wheel operation, and also to improve roll control and maintain a flatter ride by strengthening the suspension damping. In the brake system, the vacuum booster has been tuned and the feeling of initial brake application has been optimized. The overall result is outstanding response and reassuring linearity under all braking conditions.

    Highly rigid body

    The basic development concept for the body shell of the all-new Mazda 3 was to improve the overall balance of the body’s rigidity and ensure it firmly absorbs the reaction force of the dampers. To this end, particular attention went to reinforcing the area around the front and rear suspension mounts and the joint sections in each corner, which are subject to greater stress. Structural adhesive was used to strengthen the joints for the front and rear suspension towers, and spot welding was added to reinforce the joints of the door openings. The result is a substantial improvement in rigidity and body hysteresis (the degree of car body deformation due to repeated applications of torsional load).

    Class-leading aerodynamics

    We adopted a new approach, called “airflow management,” to optimally control the flow of air. Conventional car designs create a large amount of drag, a loss that adversely affects aerodynamic performance. However, the all-new Mazda 3 does not take in excess air and thereby minimizes drag. One specific example is the upper and lower grille openings, which concentrate ram pressure (wind pressure) in a manner that eases the intake of air and directs it effectively to cool the engine. Additionally, the front corners of the upper body were reshaped and round front tire deflectors were added to control the flow of air along the vehicle’s sides. As a result, the drag coefficient for the European specification 5-door hatchback and 4-door sedan are respectively 0.30 and 0.28, amongst of the bests in the segment. These measures helped the engineers attain top-class levels for wind noise reduction, high speed stability and fuel economy.

    Cabin environment – sense of oneness between car and driver

    Aboard the all-new Mazda 3 is a new Human Machine Interface that contributes to the sense of oneness between the car and driver. The cabin interior is designed to allow the driver to concentrate on driving and also appreciate the level of quality in both design and the materials used.

    A sporty cockpit that improves functional beauty

    The new “zone layout” approach focuses on improving visibility and more intuitive controls which provide “a sense of the car and driver as one” and “a reassuring sense of confidence that frees the driver to concentrate on driving.” First, the Mazda 3 development team integrated the information display and positioned it towards the front in the optimal “zone.” This placed the information necessary while driving where it can be seen with the least amount of eye movement. Next, the engineers placed all the controls and switches within a single “zone” closer to the driver’s hands. Designing the cockpit with controls and information display in separate zones frees the driver to concentrate on driving.

    Multi information display (MID)

    Based on the concept of the zone layout, Mazda developed the Multi Information Display (MID). It clearly shows information on all the equipment needed while driving, such as the trip computer, audio system and compact GPS system (optional), which can be operated easily by switches mounted on the steering wheel.

    Seats that fit better, provide greater support and are more functional

    The raised sides on the front of the seat cushions were made 20mm larger than on the first generation Mazda 3 to increase the leg support for a better fit. The seat backs were also extended by 35mm, which better supports the occupant’s posture. Seat position adjustment controls were also evolved. The new power seat has a 3-position memory function. Upon approach to the car, the left-front seat automatically adjusts to the settings chosen by up to 3 different drivers by recognizing the code of the key fob. High-grade models feature standard sports seats.

    New welcoming functionalities

    The interactive lighting control increases anticipation of a Zoom-Zoom driving experience. For example, when the driver unlocks the car door, the cockpit spotlight, room lamp and lights in the door handles illuminate in sequence, along with the meters and centre display, to gently welcome the driver and passengers (depending on grade). The illumination even responds when the driver operates the controls, strengthening the interactive communication between driver and car.

    Substantially reduced road and wind noise

    Many improvements were made to structural rigidity and powertrain NVH performance to provide a quieter, more pleasant ride, including the reduction of high frequency booming noise sometimes heard when decelerating while further evolving a sporty engine note. Increasing the rigidity of components and joints also helped to deliver a quieter ride that rates among the class leaders. The sound pressure level of road noise was curtailed by 6 to 11 percent over the previous model, and wind noise was reduced by approximately 6 percent, to 59.0 dB at 100 km/h with a 5 m/s crosswind, placing the all-new Mazda 3 among the quietest in the class.

    Safety

    As well as improving passive safety technologies, Mazda focused on enhancing active safety equipment that supports the recognition and avoidance of hazards. Specifically, the cutting edge active safety technologies featured on the all-new Mazda 3 include ABS, Electronic Brake Force Distribution (EBD), Dynamic Stability Control (DSC) and Emergency Stop Signaling system(ESS) as standard equipments, and bi-xenon headlights with a pivoting adaptive front lighting system (option). New features include the Rear Vehicle Monitoring system (RVM), Tyre Pressure Monitoring System (TPMS) and Heated Wind Shield (option). The new model’s passive safety systems are comprehensive and include Mazda proprietary highly-rigid and safe vehicle body technology, the Mazda Advanced Impact-energy Distribution and Absorption System, as well as front seat active headrests and a complement of six airbags, placing the all-new Mazda 3 at the level of the top marks in collision safety testing around the world.

    Environmental performance

    The all-new Mazda 3 offers excellent environmental performance that conforms to Euro Stage 5 regulations (apart from models with the 1.6-litre gasoline and diesel engines). This was achieved thanks to innovations including the new MZR-CD 2.2-litre diesel engine, optimized engine control, Mazda’s Electro-Hydraulic Power Assisted Steering system (EHPAS), outstanding aerodynamics and comprehensive weight reduction efforts. The MZR-CD 2.2-litre standard power version is approximately 10 percent more efficient than the MZR-CD 2.0-litre engine of the first-generation Mazda 3.

    Efforts to promote vehicle recycling

    Mazda has achieved recyclability ratios of over 90 percent. Beginning in 2005, Mazda also became the first in the auto industry to fully implement ‘bumper-to-bumper recycling’ that recycles material from damaged bumpers. Additionally, we have completely eliminated the use of lead, hexavalent chromium, cadmium and mercury, with the exception of exempt parts. Mazda led the motor industry by being the first to adopt a low-VOC sealer that reduces toluene emissions to less than one tenth of conventional sealers. Furthermore, all of Mazda’s domestic production sites have attained ISO 14001 certification.

     
  • McLaren M6GT Car Review

    The McLaren M6A was a racing car developed by driver Bruce McLaren and his Bruce McLaren Motor Racing team for their entry in 1967 Can-Am season. As a replacement for the team’s M1Bs from 1966, the Chevrolet-powered McLaren M6A’s improved design earned Bruce McLaren and his team their first of multiple Can-Am championships. After the McLaren M6A were replaced by the M8A in preparation for 1968, McLaren and technical partner Trojan developed the M6B which was sold to customers for use in Can-Am as well as other racing series.

    The M6 name was later used in the development of a closed-cockpit sports car for the 24 Hours of Le Mans and known as the M6GT. The company’s plan to homologate it for the FIA’s Group 4 regulations was however never completed, and only a few M6GT prototypes were finished by McLaren and Trojan. Two M6GTs were later converted to road cars, one of which became Bruce McLaren’s personal transport.

    Development

    Bruce McLaren gathered several designers to develop the McLaren M6A during the off-season in early 1967. Along with McLaren himself, Robin Herd, Gordon Coppuck, Tyler Alexander, and Don Beresford all worked on the layout of the McLaren M6A’s chassis and bodywork. The car featured the first monocoque chassis constructed by McLaren, while the bodywork was specifically shaped to increase downforce suited for the Can-Am circuits. McLaren’s team also expanded into engine development, creating a fuel injection system for their Chevrolet V8s. Another addition to the team was a new tire supplier, with Goodyear replacing Firestone in exchange for a testing and development program.

    The first McLaren M6A was completed in spring 1967, and brought to the nearby Goodwood Circuit for testing. Bruce McLaren Motor Racing carried out over 2000 miles of testing at the circuit in preparation for the upcoming Can-Am season, tuning the car as well as gathering data for Goodyear’s use. As two further McLaren M6A were completed, the team shipped the cars to North America to prepare for the opening race of the season. A final addition to the cars was a coat of orange paint. This new McLaren Orange color scheme would eventually become synonymous with Bruce McLaren and the team.

    After the retirement of the McLaren M6A, McLaren entrusted Trojan with constructing duplicates which could be sold to customers. These M6Bs were nearly identical to the McLaren M6A but were sold without an engine. Several other M6Bs were also modified to fit closed-cockpit bodywork.

    Racing history

    The 1967 Can-Am season began in September at Road America. Bruce McLaren’s M6A qualified on pole position with a new track record, while teammate Denny Hulme’s car led once the race began. Although McLaren’s car suffered an oil leak and failed to finish, Hulme was able to earn the car’s first victory. The next two events had the team running away from the opposition, with Hulme and McLaren finishing first and second consecutively. The roles were however swapped over the next two races as it was McLaren who won on both occasions, but problems with Hulme’s car allowed McLaren to take the lead in the points standings going into the final round. For the finale at the Stardust Grand Prix, problems with the Chevrolet motors led to blown engines and neither car reaching the finish. However, with their performance over the season, Bruce McLaren secured the 1967 Can-Am Challenge Cup, while Hulme was ranked second only three points behind.

    As Bruce McLaren Motor Racing moved to developing the M8A, the M6Bs began to be delivered to customers for the 1968 season. Several of the McLaren M6A were also sold with Roger Penske purchasing one car for defending United States Road Racing Championship (USRRC) champion Mark Donohue. Donohue won several USRRC events that season and earned his second championship. Donohue also later won a race in Can-Am, beating the newer McLaren M8As. After the cancellation of the USRRC after 1968, the M6As and M6Bs continued to be used into the early 1970s but none were able to achieve victory against their newer competitors.

     
  • McLaren F1 GTR Car Review

    Built at the request of race teams, such as those owned by Ray Bellm and Thomas Bscher, in order to compete in the BPR Global GT Series, the McLaren F1 GTR was a custom built race car which introduced a modified engine management system that increased power output — however, air-restrictors mandated by racing regulations reduced the power back to 600 hp (447 kW) at 7500 RPM. The cars extensive modifications included changes to body panels, suspension, aerodynamics and the interior. The McLaren F1 GTR would go on to take its greatest achievement with 1st, 3rd, 4th, 5th, and 13th places in the 1995 24 Hours of Le Mans, beating out custom built prototype sports cars.

    In total, nine McLaren F1 GTRs would be built for 1995.

    McLaren F1 GTR ’96

    To follow up on the success of the McLaren F1 GTR into 1996, McLaren further developed the ’95 model, leading to a size increase but weight decrease. Nine more F1 GTRs were built to 1996 spec, while some 1995 cars were still campaigned by privateers. McLaren F1 GTR ’96 chassis #14R is notable as being the first non-Japanese car to win a race in the All-Japan Grand Touring Car Championship (JGTC). The car was driven by David Brabham and John Nielsen. The weight was reduced with around 100 kg from the 1995 GTR edition and the engine was kept detuned at 600 HP to comply with racing regulations.

    McLaren F1 GTR ’97

    With the F1 GT homologated, McLaren could now develop the McLaren F1 GTR for the 1997 season. Weight was further reduced and a sequential transaxle was added. The engine was slightly destroked to 6.0L instead of the previous 6.1L. Due to the heavily modified bodywork, the McLaren F1 GTR ’97 is often referred to as the “Longtail” thanks to the rear bodywork being extended to increase rear downforce. A total of ten McLaren F1 GTR ’97s were built. The weight was reduced to a total of 910 kg.

     
  • Orange McLaren F1

    The McLaren F1 is a sports car designed and manufactured by Gordon Murray and McLaren Automotive. On March 31, 1998, it set the record for the fastest production car in the world, 240 mph (391 km/h). As of April 2009, the McLaren F1 is succeeded by three faster cars in sheer top speed, but is still the fastest naturally aspirated production car.

    The car features numerous proprietary designs and technologies. It is lighter and has a more streamlined structure than even most of its modern rivals and competitors despite having one seat more than most similar sports cars, with the driver’s seat located in the middle. It features a powerful engine and is somewhat track oriented, but not to the degree that it compromises everyday usability and comfort. It was conceived as an exercise in creating what its designers hoped would be considered the ultimate road car. Despite not having been designed as a track machine, a modified race car edition of the vehicle won several races, including the 24 Hours of Le Mans in 1995, where it faced purpose-built prototype race cars. Production began in 1992 and ended in 1998. In all, 106 cars were manufactured, with some variations in the design.

    Chief engineer Gordon Murray’s design concept was a common one among designers of high-performance cars: low weight and high power. This was achieved through use of high-tech and expensive materials like carbon fibre, titanium, gold, magnesium and kevlar. The McLaren F1 was the first production car to use a carbon-fibre monocoque chassis.

    The idea was first conceived when Murray was waiting for a flight home from the fateful Italian Grand Prix in 1988; Murray drew a sketch of a three seater sports car and proposed it to Ron Dennis, pitched as the idea of creating the ultimate road car, a concept that would be heavily influenced by the Formula One experience and technology of the company and thus reflect that skill and knowledge through the McLaren F1.

    Quote from Gordon (translated from original Japanese article): “During this time, we were able to visit with Ayrton Senna (the late F1 Champion) and Honda’s Tochigi Research Center. The visit related to the fact that at the time, McLaren’s F1 Grand Prix cars were using Honda engines. Although it’s true I had thought it would have been better to put a larger engine, the moment I drove the Honda NSX, all the benchmark cars—Ferrari, Porsche, Lamborghini—I had been using as references in the development of my car vanished from my mind. Of course the car we would create, the McLaren F1, needed to be faster than the NSX, but the NSX’s ride quality and handling would become our new design target. Being a fan of Honda engines, I later went to Honda’s Tochigi Research Center on two occasions and requested that they consider building for the McLaren F1 a 4.5 liter V10 or V12. I asked, I tried to persuade them, but in the end could not convince them to do it, and the McLaren F1 ended up equipped with a BMW engine.”

    Later, a pair of Ultima MK3 kit cars, chassis numbers 12 and 13, “Albert” and “Edward”, the last two MK3s, were used as “mules” to test various components and concepts before the first cars were built. Number 12 was used to test the gearbox with a 7.4 litre Chevrolet V8 to mimic the torque of the BMW V12, plus various other components like the seats and the brakes. Number 13 was the test of the V12, plus exhaust and cooling system. When McLaren was done with the cars they destroyed both of them to keep away the specialist magazines and because they did not want the car to be associated with “kit cars”.

    The car was first unveiled at a launch show, 28 May 1991, at The Sporting Club in Monaco. The production version remained the same as the original prototype (XP1) except for the wing mirror which, on the XP1, was mounted at the top of the A-pillar. This car was deemed not road legal as it had no indicators at the front; McLaren was forced to make changes on the car as a result (some cars, including Ralph Lauren’s, were sent back to McLaren and fitted with the prototype mirrors). The original wing mirrors also incorporated a pair of indicators which other car manufacturers would adopt several years later.

    The car’s safety levels were first proved when during a testing in Namibia in April 1993, a test driver wearing just shorts and t-shirt hit a rock and rolled the first prototype car several times. The driver managed to escape unscathed. Later in the year, the second prototype (XP2) was especially built for crashtesting and passed with the front wheel arch untouched.

    Engine

    Gordon Murray insisted that the engine for this car be naturally aspirated to increase reliability and driver control. Turbochargers and superchargers increase power but they increase complexity and can decrease reliability as well as introducing an additional aspect of latency and loss of feedback, the ability of the driver to maintain maximum control of the engine is thus decreased. Murray initially approached Honda for an NA powerplant with 550 bhp (410 kW; 560 PS), 600 mm (23.6 in) block length and a total weight of 250 kg (551 lb), it should be derived from the Formula One powerplant in the then-dominating McLaren/Honda cars.

    When Honda refused, Isuzu, then planning an entry into Formula One, had a 3.5 V12 engine being tested in a Lotus chassis. The company was very interested in having the engine fitted into the McLaren F1. However, the designers wanted an engine with a proven design and a racing pedigree.

    In the end BMW took an interest, and the motorsport division BMW M headed by engine expert Paul Rosche designed and built Murray a custom-designed 6.1 L (6064 cc) 60-degree V12 engine, which was 14% more powerful than specified and 16 kg (35 lb) heavier – despite being based on the original specifications of 550 bhp (410 kW; 560 PS), 600 mm (23.6 in) block length and total weight of 250 kilograms (550 lb).

    The final result is a custom-built 6.1 L (6064 cc) 60-degree V12 with an aluminium alloy block and head, 86 mm (3.4 in) x 87 mm (3.4 in) bore/stroke, quad overhead camshafts for maximum flexibility of control over the four valves per cylinder and a chain drive for the camshafts for maximum reliability, the engine is dry sump. At 266 kg (586 lb), the resulting engine was slightly heavier than Murray’s original maximum specification weight of 250 kg (551 lb) but was also considerably more powerful than he had specified. The bespoke engineered engine for the McLaren F1 is called the BMW S70/2.

    The carbon fibre body panels and monocoque required significant heat insulation in the engine compartment, so Murray’s solution was to line the engine bay with a highly efficient heat-reflector: gold foil. Approximately 25 g (0.8 ounce) of gold was used in each car.

    The road version used a compression ratio of 11:1 to produce 627 hp (468 kW; 636 PS) at 7400 rpm—considerably more than Murray’s specification of 550 horsepower (404 kW). Torque output of 480 ft·lb (651 N·m) at 5600 rpm. The engine has a redline rev limiter set at 7500 rpm.

    In contrast to raw engine power, a car’s power-to-weight ratio is a better method of quantifying acceleration performance than the peak output of the vehicle’s powerplant. The standard McLaren F1 achieves 550 hp/ton (403 kW/tonne), or just 3.6 lb/hp. Compare with the Ferrari Enzo at 434 hp/ton (314 kW/tonne) (4.6 lb/hp), the Bugatti Veyron at 530.2 hp/ton (395 kW/tonne) (4.1 lb/hp), and the SSC Ultimate Aero TT with an alleged 1003 hp/ton (747.9 kW/tonne) (2 lb/hp).

    The cam carriers, covers, oil sump, dry sump, and housings for the camshaft control are made of magnesium castings. The intake control features twelve individual butterfly valves and the exhaust system has four Inconel catalysts with individual Lambda-Sond controls. The camshafts are continuously variable for increased performance, using a system very closely based on BMW’s VANOS variable timing system for the BMW M3; it is a hydraulically-actuated phasing mechanism which retards the inlet cam relative to the exhaust cam at low revs, which reduces the valve overlap and provides for increased idle stability and increased low-speed torque. At higher RPM the valve overlap is increased by computer control to 42 degrees (compare 25 degrees on the M3) for increased airflow into the cylinders and thus increased performance.

    To allow the fuel to atomise fully the engine uses two Lucas injectors per cylinder, with the first injector located close to the inlet valve – operating at low engine RPM – while the second is located higher up the inlet tract – operating at higher RPM. The dynamic transition between the two devices is controlled by the engine computer.

    Each cylinder has its own miniature ignition coil. The closed-loop fuel injection is sequential. The engine has no knock sensor as the predicted combustion conditions would not cause this to be a problem. The pistons are forged in aluminium.

    Every cylinder bore has a nikasil coating giving it a high degree of wear resistance.

    From 1998 to 2000, the Le Mans-winning BMW V12 LMR sports car used a similar S70/2 engine.

    The engine was given a short development time, causing the BMW design team to use only trusted technology from prior design and implementation experience. The engine does not use titanium valves or connecting rods. Variable intake geometry was considered but rejected on grounds of unnecessary complication.

    As for fuel consumption, the engine uses on average 15.2 mpg, at worst 9.3 mpg and at best 23.4 mpg.

    Chassis and body

    The McLaren F1 was the first production road car to use a complete carbon fiber reinforced plastic (CFRP) monocoque chassis structure. Aluminium and magnesium was used for attachment points for the suspension system, inserted directly into the CFRP.

    The car features a central driving position – the driver’s seat is located in the middle, ahead of the fuel tank and ahead of the engine, with a passenger seat slightly behind and on either side. The doors on the vehicle move up and out when opened, and are thus of the type butterfly doors.

    The engine produces high temperatures under full application and thus cause a high temperature variation in the engine bay from no operation to normal and full operation. CFRP becomes mechanically stressed over time from high heat transfer effects and thus the engine bay was decided to not be constructed from CFRP.

    Aerodynamics

    The overall drag coefficient on the standard McLaren F1 is 0.32, compared with 0.36 for the faster Bugatti Veyron, and 0.357 for the current holder of the fastest car world record (as of 2008) – the SSC Ultimate Aero TT (in terms of top speed). The vehicle’s frontal area is 1.79 square meters and the total Cx is 0.57. Due to the fact that the machine features active aerodynamics these are the figures presented in the most streamlined configuration.

    The normal McLaren F1 features no wings to produce downforce (compare the LM and GTR editions), however the overall design of the underbody of the McLaren F1 in addition to a rear diffuser exploits ground effect to improve downforce which is increased through the use of two electric fans to further decrease the pressure under the car. A “high downforce mode” can be turned on and off by the driver. At the top of the vehicle there is an air intake to direct high pressure air to the engine with a low pressure exit point at the top of the very rear. Under each door is a small air intake to provide cooling for the oil tank and some of the electronics. The airflow created by the electric fans not only increase downforce, but the airflow that is created is further exploited through design, by being directed through the engine bay to provide additional cooling for the engine and the ECU. At the front, there are ducts assisted by an electric suction fan for cooling of the front brakes.

    There is a small rear spoiler on the tail of the vehicle, which is dynamic, the device will adjust dynamically and automatically attempt to balance the center of gravity of the car under braking – which will be shifted forward when the brakes are applied. Upon activation of the spoiler a high pressure zone is obviously created in front of the flap, this high pressure zone is exploited—two air intakes are revealed upon application that will allow the high pressure airflow to enter ducts that route air to aid in cooling the rear brakes. The spoiler increases the overall drag coefficient from 0.32 to 0.39 and is activated at speeds equal to or above 40 mph (64 km/h) by brake line pressure.

    Suspension

    Steve Randle who was the car’s dynamicist was appointed responsible for the design of the suspension system of the McLaren F1 machine. It was decided that the ride should be comfortable yet performance oriented, however not as stiff and low as that of a true track machine, as that would imply reduction in practical use and comfort as well as increasing noise and vibration, which would be a contradictory design choice in relation to the former set premise – the goal of creating the ultimate road car.

    From scratch the design of the McLaren F1 vehicle had strong focus on centering the mass of the car as near the middle as possible by extensive manipulation of placement of i.a. the engine, fuel and driver, allowing for a low polar moment of inertia in yaw. The McLaren F1 has 42% of its weight at the front and 58% at the rear, this figure changes less than 1% with the fuel load.

    The distance between the mass centroid of the car and the suspension roll centre were designed to be the same front and rear to avoid unwanted weight transfer effects. Computer controlled dynamic suspension were considered but not applied due to the inherent increase in weight, increased complexity and loss of predictability of the vehicle.

    Damper and spring specifications: 90 mm (3.5 in) bump, 80 mm (3.1 in) rebound with bounce frequency at 1.43 Hz at front and 1.80 Hz at the rear, despite being sports oriented these figures imply the rather soft ride and will inherently decrease track performance, but again, the McLaren F1 is not in concept nor implementation a track machine. As can be seen from the McLaren F1 LM, McLaren F1 GTR et al., the track performance potential is much higher than that in the stock McLaren F1 due to fact that car should be comfortable and usable in everyday conditions.

    The suspension is a double wishbone system with an interesting design, i.a. that longitudinal wheel compliance is included without loss of wheel control, which allows the wheel to travel backwards when it hits a bump – increasing the comfort of the ride.

    Castor wind-off at the front during braking is handled by McLaren’s proprietary Ground Plane Shear Centre – the wishbones on either side in the subframe are fixed in rigid plane bearings and connected to the body by four independent bushes which are 25 times more stiff radially than axially. This solution provides for a castor wind-off measured to 1.02 degrees per G of braking deceleration. Compare the Honda NSX at 2.91 degrees per G, the Porsche 928 S at 3.60 degrees per G and the Jaguar XJ6 at 4.30 degrees per G respectively. The difference in toe and camber values are also of very small under lateral force application. Inclined Shear Axis is used at the rear of the machine provides measurements of 0.04 degrees per G of change in toe-in under braking and 0.08 degrees per G of toe-out under traction.

    When developing the suspension system the facility of electro-hydraulic kinematics and compliance at Anthony Best Dynamics was employed to measure the performance of the suspension on a Jaguar XL16, a Porsche 928S and a Honda NSX to use as references.

    Steering knuckles and the top wishbone/bell crank are also specially manufactured in an aluminium alloy. The wishbones are machined from a solid aluminium alloy with CNC machines.

    Tyres

    The McLaren F1 uses 235/45ZR17 front tyres and 315/45ZR17 rear tyres. These are specially designed and developed solely for the McLaren F1 by Goodyear and Michelin. The tyres are mounted on 17×9 inches and 17×11.5 inches cast magnesium wheels, protected by a tough protective paint. The five-spoke wheels are secured with magnesium retention pins.

    The turning circle from curb to curb is 13 m (42.7 ft), allowing the driver two turns from lock to lock.

    Brakes

    The McLaren F1 features unassisted, vented and crossdrilled brake discs made by Brembo. Front size is 332 mm (13.1 in) and at the rear 305 mm (12.0 in). The calipers are all four-pot, opposed piston types, and are made of aluminium. The rear brake calipers do not feature any handbrake functionality, however there is a mechanically actuated, fist-type caliper which is computer controlled and thus serves as a handbrake.

    To increase caliper stiffness the calipers are machined from one single solid piece (in contrast to the more common being bolted together from two halves). Pedal travel is slightly over one inch. Activation of the rear spoiler will allow the air pressure generated at the back of the vehicle to force air into the cooling ducts located at either end of the spoiler which become uncovered upon application of it.

    Servo assisted ABS brakes were ruled out as they would imply increased mass, complexity and reduced brake feel; however at the cost of increasing the required skill of the driver.

    Gordon Murray attempted to utilize carbon brakes for the McLaren F1, but found the technology not mature enough at the time; with one of the major culprits being that of a proportional relationship between brake disc temperature and friction—i.e. stopping power—thus resulting in relatively poor brake performance without an initial warm-up of the brakes prior to use. As carbon brakes have a more simplified application envelope in pure racing environments this allows for the racing edition of the machine, the McLaren F1 GTR, to feature ceramic carbon brakes.

    Gearbox and miscellaneous

    The standard McLaren F1 has a transverse 6-speed manual gearbox with an AP carbon triple-plate clutch contained in an aluminium housing. The second generation GTR edition has a magnesium housing. Both the standard edition and the ‘McLaren F1 LM’ have the following gear ratios: 3.23:1, 2.19:1, 1.71:1, 1.39:1, 1.16:1, 0.93:1, with a final drive of 2.37:1, the final gear is offset from the side of the clutch. The gearbox is proprietary and was developed by Weismann. The Torsen LSD (Limited Slip Differential) has a 40% lock.

    The McLaren F1 has an aluminium flywheel that has only the dimensions and mass absolutely needed to allow the torque from the engine to be transmitted. This is done in order to decrease rotational inertia and increase responsiveness of the system, resulting in faster gear changes and better throttle feedback. This is possible due to the McLaren F1 engine lacking secondary vibrational couples and featuring a torsional vibration damper by BMW.

    Interior and equipment

    Standard car stereo reviews equipment on the stock McLaren F1 includes full cabin air conditioning, a rarity on most sports cars and a system design which Murray again credited to the Honda NSX, a car he had owned and driven himself for 7 years without, according to the official McLaren F1 website, ever needing to change the AC automatic setting. Further comfort features included SeKurit electric defrost/demist windscreen and side glass, electric window lifts, remote central locking, Kenwood 10-disc CD stereo system, car stereo reviews, cabin access release for opening panels, cabin storage department, four lamp high performance headlight system, rear fog and reversing lights, courtesy lights in all compartments, map reading lights and a gold-plated Facom titanium tool kit and first aid kit (both stored in the car). In addition tailored, proprietary luggage bags specially designed to fit the vehicle’s carpeted storage compartments, including a tailored golf bag, were standard equipment. Airbags are not present in the car.

    All features of the McLaren F1 were according to Gordon Murray obsessed over, which included the interior. The metal plates fitted to improve aesthetics of the cockpit are claimed to be 20/1000s of an inch thick to save weight. The driver’s seat of the McLaren F1 is custom fitted to the specifications desired by the customer for optimal fit and comfort; the seats are hand made from CFRP and covered in light Connolly leather. By design the F1 steering column can not be adjusted, however prior to production each customer specifies the exact preferred position of the steering wheel and thus the steering column is tailored by default to those owner settings; the same holds true for the pedals, which are not adjustable after the car has left the factory, but like the steering column the pedals are also tailored to each specific customer.

    During its pre-production stage, McLaren commissioned Kenwood to create a lightweight car audio system for the car; Kenwood, between 1992 and 1998 used the McLaren F1 to promote its products in print advertisements, calendars and brochure covers. Each car audio system was especially designed to tailor to an individual’s listening taste, however radio was omitted because Murray never listened to the radio.

    Every standard McLaren F1 also has a modem which allows customer care to remotely fetch information from the ECU of the car in order to help aid in the event of a failure of the vehicle.

    Purchase and maintenance

    Only 106 cars were manufactured, 64 of which were the standard street version (F1), 5 were LMs (tuned versions), 3 were longtail roadcars (GT), 5 prototypes (XP), 28 racecars (GTR), and 1 LM prototype (XP LM). Production began in 1992 and ended in 1998. At the time of production one machine took around 3.5 months to make.

    Up until 1998, when McLaren produced and sold the standard McLaren F1 models, they had a price tag of around 970 000 USD. The cars can sell for up to nearly twice that of the original price, due to the performance and exclusivity of the machine. They are expected to further increase in value over time.

    Although production stopped in 1998, McLaren still maintains an extensive support and service network for the McLaren F1. There are eight authorized service centers throughout the world, and McLaren will on occasion fly a specialized technician to the owner of the car or the service center. All of the technicians have undergone dedicated training in service of the McLaren F1. In cases where major structural damage has occurred, the car can be returned to McLaren directly for repair.

    On October 29 2008, an McLaren F1 road car (chassis number 065) was sold at an RM Automobiles of London auction for £2,530,000 (~US$4,100,000). This was the car from the McLaren showroom on Park Lane, London. With only 484 kilometers on its odometer, this pristine example set a world record for the highest price ever paid for an McLaren F1 road car.

     
  • 2010 MINI E

    All-electric MINI E is powered by a 150 (204 hp) electric motor with a rated battery high capacity Li-ion battery, transferring its power to the front wheels through a gearbox from one phase of the helix is almost completely silent and emission free. Car specially designed for use, the battery technology will have a range of more than 240 kilometers or 150 miles. MINI E will initially be available to select private and corporate customers as part of a pilot project in the U.S. state of California, New York and New Jersey. Possibilities offered MINI E in Europe and is currently being studied. MINI E will give its world premiere at the Los Angeles Auto Show on November 19 and 20, 2008. The BMW Group is the world’s leading premium car manufacturer deploy a fleet of about 500 all-electric vehicles for private use in daily traffic.

    From the MINI E electric drivetrain produces maximum torque of 220 Nm, accelerating the seamless delivery of 100 km / h (62 mph) in 8.5 seconds. Top speed is electronically limited to 152 km / h (95 mph). With a suspension system tuned to match the weight distribution, the MINI E sports the brand characteristics of agility and exceptional handling.

    By introducing the MINI E, the BMW Group has underlined the determination of working to reduce energy consumption and emissions in road traffic. BMW Group refers to the unique technology expertise in the field of drive systems to develop a vehicle concept enabling zero emissions without denying driving excitement. Putting some 500 cars on the road under real daily traffic will be widely applied to obtain the hand of experience. Evaluation of these results produced valuable knowledge, to be taken into account in the mass production of vehicle engineering.

    The BMW Group aims to start mass production of all electric vehicles in the medium term as part of the strategy number one. Development of innovative concepts for mobility in large urban areas of the city in the scope of “i” has the same meaning, as a goal also includes the use of all electric powertrain.

    Energy storage unit: cutting-edge lithium-ion battery technology specifically designed for use in the MINI.

    Based on the current MINI, the car will initially be available as two-seater. The space occupied by the rear seat passenger in the series model has been reserved for the lithium-ion batteries. When used in zero-emissions MINI, the battery unit combines high output with enough storage and a small footprint with power relations unchallenged in this application so far. Storage unit has a lithium-ion maximum capacity of 35 kilowatt hours (kWh) and sends power to the electric motors 380 volts DC nominal. Rechargeable battery consists of 5088 cells grouped into 48 modules. These modules are packaged into three battery elements arranged in a compact MINI E.

    The basic components of the energy storage unit based on the principle that technology has been proven in practice in power supplies for mobile phones and laptops. Lithium-ion MINI E can connect to all standard power outlets. Time itself depends on the voltage and electric current flowing through the network. In the United States, users can recharge a battery that has been completely drained within a very short time using the installation box is included with every MINI E. Mounting box mounted in the customer’s garage, enable higher amperage, and thus provide the charging time is very short. Wallbox fully recharge the batteries after only two hours and two hours.

    Driven by electricity: reliably, affordable and emissions-free.

    Complete re interesting maximum 28 kilowatt hours of electricity from the grid. Based on the extent of the car, a kilowatt hour translates into 5.4 miles. In addition to the benefits of zero-emissions driving, the MINI E thus providing significant economic benefits for vehicles powered by a conventional internal combustion engines as well.

    Heavy-duty battery provides power to an electric motor, which then turned into thrilling agility. Set across the bottom cap MINI E, the drive to free wheelbarrow full of jams. This gives the ability to launch attractive car. The intense driving experience the MINI E plus the dynamic deceleration potential, which is also directly connected to the gas pedal. Once the driver releases the gas pedal, the electric motors function as generators. This results in braking force, and kinetic energy security feed back into the battery. This interaction ensures extremely comfortable drives – especially at medium speed with constant change, but marginal. In city traffic, about 75 percent of all deceleration can be done without the brakes. Make significant use of this energy recovery features extend the reach of cars to 20 percent.

    Signature MINI agility in a new guise.

    Weighing 1465 kilograms (3230 pounds), the MINI E has a distribution that is more severe. Slight modifications to the suspension ensure safe handling at all times. Dynamic Stability Control (DSC) system has been tailored to the specific wheel loads from this model.

    The brakes, the MINI E comes with a newly developed bomb lack of electrical pressure. Its electric power steering (EPS) is the same used in mass production of miniature. Both brake and steering assistance react to driving conditions and thus very efficient. In fact, only electricity to operate air-conditioning compressor, if desired or necessary.

    Design: MINI undoubtedly new.

    At first glance, the MINI E is clearly a repetition of the brand. But its design, which is the basis for zero-emissions two-seater, has been equipped with a series of visual clues that lead to a revolutionary drive concept. All the units produced for the pilot project will have the painting itself and the serial number on the front fender.

    MINI E sports the body is an exclusive combination of metallic Dark Silver on all panels but the roof, which is coated with pure silver. What distinguishes a zero-emissions MINI is a specially designed logo in yellow exchange, representing a plug-style “E” with a silver background. This has been applied to the roof, in smaller dimensions to the front and back to the port of loading, setting panel, and – combined with the MINI logo – to the door jamb, in slightly modified form. Color edge of the roof, mirror housing, the interior styling cues and seat seams will match the logo yellow tone as well.

    In addition, key indicators and battery level indicator behind the wheel of the MINI E, which replaces the Mini rev counter, feature yellow letters on the background of dark gray. Battery level is displayed in percentage figures. Center includes LED indicators that show that the power consumption in red and green energy recovery.

    MINI E customers will be part of a pioneering mission.

    500 units, limited production MINI E series will be produced at the end of 2008. Thus, this project will reach the order of magnitude that clearly exceeds the size of the current series of tests comparable. Putting the MINI E on the road every day will be a pioneering achievement for pilots and engineers who first zero-emissions MINI will contribute as a team.

    MINI E customers will join the BMW Group experts to assist in the evaluation of scientific projects. MINI E engineers as high importance to keep in touch with the regular controller, because it will help them analyze driver behavior, vehicle characteristics and to obtain the most accurate and realistic picture requires a vehicle with a pure electric cars in the use of select areas.

    Special charging station and full service for every MINI E.

    The cars will change hands based on a contract extension with an option year. Monthly rent payment will include the required technical service including all necessary maintenance and replacement of wear parts. At the end of the contract, which includes all the project cars will be returned to the fleet of BMW Group engineering, where they will be subject to comparative tests.

    Lithium-ion MINI E can be filled with a mounting box provided to MINI customers. Only locked garages or similar buildings will qualify as Homebase and power for the MINI E.

    Maintenance by qualified specialists.

    High voltage electric drive technology requires that maintenance work will be performed by qualified personnel using special tools that are not included in the standard toolbox mini ministry partners’. In this view, a basic service will be established at both beaches, which consists of a special service engineers are trained to perform maintenance and repair of electrical components MINI E. Should the unit damage, these experts will provide professional support to the client’s local MINI dealer or the special basic service equipped workshop. Technical inspection will occur after 3000 miles (5000 kilometers below) and at least after six months.

    Production in Oxford and Munich.

    MINI E has gone through major phases of product development for mass-produced vehicles and passed the tests in road accidents. Examining aspects of passenger protection were the impact of the collision other than the force on the lithium-ion battery and finding a place that is not dangerous for him in the car. MINI E the energy storage unit emerged completely safe from all accidents tests mandated by U.S. standards, which is very high.

    Production of the approximately 500 vehicles will be held in Oxford, the company and Munich sites and is scheduled for completion in late 2008. MINI plant in the UK will be responsible for manufacturing the entire vehicle, with the exception of the components of the drive and lithium-ion battery, with models in a series of roll marking their assembly line at the same time. The units will be transferred to a specially equipped manufacturing complex situated on BMW plant in the campus electric motor, battery units, electronics and transmission will be integrated results.

    Technical Specifications

    * Doors: 3
    * Seats: 2
    * Length: 3.714 mm (146.2 “)
    * Width: 1683 mm (66.3 “)
    * Height: 1407 mm (55.4 “)
    * Wheelbase: 2467 mm (97.1 “)
    * Tennis
    forward or: 1453 mm (57.2 “)
    or later: 1461 mm (57.5 “)
    * Change the circle: 10.7 m (35.1 ft)
    * Curb weight: 1465 kg (3230 pounds)
    * Payload: 195 kg (430 lbs)
    * Gross Vehicle Weight: 1660 kg (3656 pounds)
    * Cargo space (DIN): 60 l
    * Motor
    o Type: Electric Motor
    or types of motor: Asynchronous motor
    O Output: 204 hp (150 kW)
    or torque: 220 Nm (from idle)
    Ø Max. RPM (cut): 12,500 rpm
    * Electrical
    Battery capacity o: 35kWh, approx. 28kWh used
    O Battery weight: 260 kg (573 lbs)
    Charged or
    + 23.6 h @ 110 V/12 A (1.3 kW)
    + 4.4h @ 240 V/32 A (7.0 kW)
    + 2.9h @ 240V/48 A (10.6 kW)
    or design of the battery: 53 cells connected in parallel to form a unit, 2 units connected in series is a module, 48 modules connected in series is the battery, individual cells of the total 5088
    cooling of the battery or: air cooling through the temperature, load and speed sensitive fans
    or battery locations: expanding the back of the heel plate, replace rear seat
    or beak: short bursts of up to 900A
    * Materials rolling
    Front suspension or wheels: one set of spring axle, McPherson struts with anti-dive control
    or the rear wheel suspension: Longitudinal link with the control arm mounted on the center, the axis z
    or Front brakes: ventilated disc brakes, Diameter: 294 mm (11.6 “)
    or rear brake: Disc, Diameter: 259 mm (10.2 “)
    or Road stability systems: DSC adapted to modified curb weight and wheel load (always) under the control of the recovery friction through DSC, ELUP (lack of pressure electronic pump) brake increases
    or Steering: Rack and pinion with electronic power steering (EPS)
    or the total transmission ratio address: 14.1:1
    o Type of transmission: one stage helical gearbox derived from the Cooper S helical gearbox
    or the distribution of axle load
    + Front: 750 kg (1651 pounds)
    And rear: 715 kg (1575 pounds)
    or tires: all season Runflat 16 ”
    * Performance Rating
    or Power-to-weight (DIN): 9.76 kg / kW
    or Acceleration 0-100 km / h (0-62 mph): 8.5 s
    o Maximum speed: 152 km / h (95 mph)
    Range or FTP (72): 240 km (150 miles)
    FTP or consumption (72): 0.12kWh/km (0.19 kWh / ml)
    O emissions of CO2: 0 g / km