Porsche Hybrid: Hybrid Porsche 918 Makes Debut
Porsche Hybrid: The Porsche 918 RSR combines the styling of the 918 Spyder concept car, with the flywheel hybrid technology of the successful 911 GT3 R, that competed in several races in 2010.

The new Porsche 918 RSR is similarly outside the rules; it is an experimental racing laboratory for Porsche engineers to test their ideas for combining alternative power, fuel efficiency, and high performance. Courtesy of NetCarShow.com
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