The 2011 Porsche 918 RSR Concept is a concept racing variation of the 918 Spyder concept car.
It was first shown to the world at the North American International Auto Show in Detroit, Michigan during January 2011. This 918 RSR race car features a Kinetic Energy Recovery System (KERS) that provides power for the two electrical motors.
The colour scheme of the 918 RSR is inspired by the Porsche 917.