text: 2013-2014 Ford Shelby GT500 First unveiled at the Los Angeles Auto Show in November 2011, Ford Shelby GT500 was the most powerful Mustang at the time. The DOHC 4 valves per cylinder  supercharged and intercooled V8 engine is certified to produce  at 6,500 rpm and  at 4,000 rpm of torque, with a claimed top speed of . The new GT500 weighs , and was available from May 2012.
  The 2013 models had various improvements and differences compared to the GT500 of 2012 including new front end sheet metal along with standard HID headlamps, along with a new LED tail light assembly. The new 2013 Shelby GT500 also had no grill, due to the massive amount of cooling required for the vehicle. Performance changes included twin fuel pumps (a Mustang GT's single supply pump, twice over), larger fuel injectors, a grippier and larger-diameter clutch, a larger fan, a three-row intercooler (the previous car used a double-row unit), a beefed-up Tremec TR-6060 six-speed manual transmission with an internal oil pump, and a single-piece carbon-fiber driveshaft. Larger Brembo front disc brakes with six-piston calipers, reinforced axle tubes, and aero tweaks to help the car reach + safely. According to Ford, the changes have resulted in a 14-percent reduction in drag and a 66-percent increase in front-end downforce. Also new for 2013 was a larger front anti-roll bar and retuned springs. An rpm-adjustable electronic launch-control function was standard, as was a four-mode electronic stability control system.