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Porsche Cayenne e-Hybrid: Plug-In Porsche Due 2014?

Green Car Reports

Porsche already offers a hybrid variant of its sports SUV, the Cayenne, but it's more about stemming the car's massive thirst than it is a truly green vehicle. A plug-in hybrid version coinciding with a mid-cycle update around 2014 could offer a much more gas-sipping option, however.

Cayenne 107
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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. less diesel fuel per lap than in 2014. 2015 R18 e-tron quattro. Click to enlarge.

Audi 150