Porsche has rolled out a race-bred version of the company’s 918 Spyder Concept at this year’s Detroit Auto Show. Packing the same drivetrain as the track-proven 911 GT3 R Hybrid race car, Porsche says that the 918 RSR will bring a whopping 767 combined horsepower to the party when it shows up in the paddock.… Continue reading Detroit 2011: Porsche unveils 918 RSR