Ford also revealed the new Shelby GT500, based on the 2013 Mustang. Its a bit more serious than the Boss 302, but then it needs to be because under that stripey bonnet it has a 5.8-liter supercharged V8 producing 650 horsepower and 600 lb.-ft. of torque! The new GT500 features a manual gearbox with revised gearing, Torsen limited-slip differential, and a new launch control system. Has this taken the title of most powerful V8-powered car in the world?