Tesla Motors Inc. began taking orders for the Tesla Roadster Sport, a high-performance sports car based on the world’s leading all-electric, zero-emission vehicle. The Tesla Roadster Sport does 0 to 60 mph in 3.7 seconds, compared with 3.9 seconds for the standard Tesla Roadster. It comes with a hand-wound stator and increased winding density for lower resistance and higher peak torque. In addition...