Porsche Developing Electric Vehicles; 3 Electric Boxsters Slated for Testing
Green Car Congress
JULY 26, 2010
In addition to introducing the flywheel KERS equipped 911 GT3 R hybrid for production-based GT racing ( earlier post ) and the Cayenne S Hybrid ( earlier post ), Porsche earlier this year unveiled the plug-in hybrid Porsche 918 Spyder concept car. mpg US) and 70 grams CO 2 per kilometer in its most economical operating mode.
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