Zero Emissions On Demand - The Nissan ZEOD is an electric race car, currently ran at the 2014 Le Mans. It has a hybrid electric drivetrain with a lithium ion battery that is quite large. It also has a tuned gasoline engine that gets about 400bph, making the combined total 750bhp. Unfortunately, the folks at Le Mans would only let them run one at a time. The battery also takes about 30 minutes to replace, making pit stops quite a time-sync.