The Shelby Mustang is a high-performance version of the Ford Mustang, produced by the Ford Motor Company with assistance from Shelby American. The GT500 was powered by a 4.6L Ford Modular V8 and featured numerous changes from the standard GT500, such as a hood scoop and deletion of the rear spoiler. Production began in December 2006 for the 2007 model year, with the car being produced until 2008.