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Porsche unveils 918 RSR, the 767hp hybrid

Tim Stevens
01.10.11
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Prius this ain't. Take a gander at Porsche's 918 RSR, which just rolled onto the company's stage at the 2011 North American International Auto Show. It has a 563hp traditional gasoline engine mounted amidships, with a pair of electric motors powering the front wheels that bring the total power up to a whopping 767. The electric motors are not powered by a set of batteries, as in a traditional hybrid, rather they take their power from an inertial flywheel mounted where the passenger seat would be on a road car and spinning at up to 36,000rpm. That's spun up by momentum when the car brakes and, when the driver hits a button, that momentum is converted to give an acceleratory boost.

That's the same setup as the 911 GT3 RSR Hybrid, which ran reasonably successfully last year. Its styling is obviously an extension of the 918 Spyder, with a number of cues taken from the incredibly successful Porsche 917 racer of the early '70s (dig the endplates that look like the 917's iconic fins). At this point Porsche hasn't indicated when this car will make its debut on the track, nor in which classes it will run, but one thing's for clear: this isn't for the road. So, we're a bit disappointed we still haven't any firm details on a production, street 918 -- not that we could have afforded it anyway.

Gallery: Porsche 918 RSR Hybrid | 51 Photos


Gallery: Porsche 918 RSR Hybrid official pictures | 24 Photos

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