2011 Detroit Auto Show: New Porsche 918 RSR, The Circuit Alternative

Porsche has unveiled at Detroit Auto Show the 918 RSR concept, a circuit interpretation for the already popular Porsche 918 Spyder. The prototype has hybrid propulsion.

As promised, Porsche marks his return at Detroit Auto Show with a revolutionary concept based on the already popular 918 Spyder. The rumors were true and the automaker from Stuttgart has exhibited at its stand from Cobo Hall, the new Porsche 918 RSR, a circuit version of the concept shown last year.

Seen as a cross of performances of the the current Porsche 911 GT3 R with the efficiency of the hybrid drive train of the 918 Spyder Coupe, the new prototype aims to be an ideal alternative for the motorsport competitions.

Individual with a large rear spoiler and with some more generous bosses, the new 918 RSR adopting a Liquid Metal Chrome blue color, but does not abandon the traditional orange from the models dedicated to motorsport, a color found at the calipers level.

Under the carbon fiber body is a V8 engine with direct-injection, capable to delivering 563 HP at 10,500 rpm. The front wheelbase has another two electric motors, each capable to delivering 100 HP. In these circumstances, the 918 RSR receives a total of 767 HP, managed by a gearbox with six reports, which can be operated using the shift paddles behind the steering wheel.

To control the 767 HP, Porsche installed a completely new braking system, hidden behind the 19-inch wheels and “shod” with special tires.

Like already popular 911 GT3 R Hybrid, the new 918 RSR adopt a new system of regeneration braking force, able to supply the lithium-ion battery pack, and also responsible for the maintaining in life of the two electric motors.

New Porsche 918 RSR is still a German experiment in hybrid technology.