Both MiEV Evolution II racers employ a quartet of electric motors (last year's car used just three), and output has been increased from 280 kilowatts (375 horsepower) up to 400 KW (536 hp). For improved handling, the cars' lithium-ion battery packs help provide lower centers of gravity, and both Masuoka's and Tracy's cars have received active yaw control, stability control and redesigned anti-lock braking systems.
