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Audi revamps 2015 R18 e-tron quattro Le Mans diesel hybrid racer; 4MJ class

Green Car Congress

The encapsulated WHP flywheel energy storage system that sits in the cockpit alongside the driver can store up to 700 kilojoules (KJ) of energy that it subsequently returns to the electrical machine—about 17% more than in 2014. —Jörg Zander, Audi Sport’s new Head of Engineering. 2015 R18 e-tron quattro. Click to enlarge.

Audi 150