text: 2013 Shelby GT350 Revealed in 2013 as an upgrade kit for the Mustang GT, the Shelby GT350 (S197 II) was built in limited numbers and was offered in both coupe and convertible versions. For the 2013 model year, the GT350 received new color options, visual styling cues, and optional performance enhancements. The 2013 Shelby GT350 is powered by a 5.0 liter V8 engine offered in either a  naturally aspirated version with an optional upgrade to increase the power output to , or a  or  supercharged versions. The engine could be combined with a manual gearbox with a short throw shifter as standard, or an automatic transmission for the naturally aspirated engine as an option.
  The 2011 Ford Mustang GT from Shelby was previously only offered in a white exterior color with Guardsman Blue Le Mans racing stripes running the length of the vehicle, and the 2012 model saw the addition of two new colors; Race Red with white LeMans stripes and Kona Blue with white LeMans stripes. The 2013 model year added even more color options in the form of Grabber Blue, Sterling Gray Metallic, "Gotta Have It" Green, Candy Red Tint Coat Metallic, Ingot Silver Metallic, "Deep Impact" Blue Metallic (replaces Kona Blue Metallic), Race Red, Performance White, and Black. These new colors could be combined with Satin Black or Gloss White stripes and a new set of wheels in Satin Black or Bright Silver Metallic. Other styling cues for 2013 included a glass roof option, Recaro Seats, and a modified custom rear valance.
  Changes for the 2013 model year also included a one piece drive shaft, more powerful brakes, cooling enhancements, and a color coordinated billet aluminum engine cap set.