2013 Ford Shelby GT500 Convertible is coming to Detroit Auto Show for its World Premiere Last month at the 2011 Los Angeles Auto Show, Ford unveiled 2013 Ford Shelby GT500 which is powered by the 5.8L supercharged V8 engine delivers 650 horsepowers. According to TopSpeed.com, the GT500 will debut at the 2012 Detroit Auto Show [...]