Porsche unveiled the RSR racing variant of the 918 Spyder. Instead of using plug-in hybrid technology, power for the two electric motors is provided by a flywheel accumulator KERS system that sits beside the driver in the passenger compartment.

Porsche

Dr.-Ing. h.c. F. Porsche AG, usually shortened to Porsche AG, is an automobile manufacturer specializing in high-performance sports cars, SUVs and sedans.
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