
Today at the 2011 North American International Auto Show in Detroit, Porsche debuted their latest concept, the Porsche 918 RSR. Taking proven technology from the race-track with the GT3 R Hybrid, the 918 RSR utilized a flywheel energy recovery system for added power and traction. Of course, the design the motor sports car resembles the Porsche 918 Concept revealed at Geneva 2010.


