2010 Ford Mustang SHELBY GT500. Horsepower numbers, zero-to-60 times and data sheets can be impressive, but reciting them to a driver at the stoplight next to you can be hard. Itâs moments like this where vehicle designers earn their pay. In this video KBBâs Micah Muzio examines the design of the Ford Mustang SHELBY GT500 to see what separates it stylistically from lesser Mustangs. For more new car reviews, interviews and automotive news visit http://www.kbb.com today.