The Green GT race car can travel at speeds of up to 200km/h (124mph). One page with technical specifications mentions that it can reach speeds of above 160 mph.
The car can travel for 45 minutes on battery power. The idea is to exchange the entire battery pack in under one minute during pit stops, when race cars are refueled and tires are changed.
Of course, running on electricity means there's no need for refueling. Not having to refuel saves time and also avoids hazards - at the 2009 Brazilian Grand Prix, the McLaren of Heikki Kovalainen pulled away from its pit box with the fuel hose still attached, creating a small fire on the pit lane and spraying fuel onto Ferrari driver Kimi Raikkonen, temporarily blinding him and burning his eyes. So, there's another advantage of turning to electricity.
The page with technical specifications further mentions that, for auxillary power, the Green GT race car has solar panels on the bodywork, instead of using an alternator.
Furthermore, the Green GT race car has a carbon fiber composite chassis and a glass fiber composite bodywork. Two synchronous water cooled electric motors of 100 kW each with DC/AC converters, coupled to GreenGT's own transmission, allow regenerative braking and deliver over 2000 Nm of torque at the wheels.
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