Marking a much-anticipated return to LMP racing since it left in 1999, Porsche left no stone unturned in the development of the new RS Spyder. The name is taken from the 550 Spyder owned by James Dean and features an upgraded chassis made of carbon fiber as well as a full carbon-fiber body which is both lightweight and utterly optimized for aero and thermodynamics. The car’s 3.4-liter 90˚ V8 makes 503 bhp at 10,000 rpm and is also a full load-bearing member. Porsche’s comeback took them to winning the ALMS LMP2 championships in 2006, 2007, and 2008. While 2009 ALMS restrictions retired the cars competitive edge, you can relive its glory anytime in Forza 4.