Black. The fifth generation began with the 2005 model year, and received a facelift in 2010 and again in 2013. The styling was influenced by the 1st generation Mustangs, headlights set back from the grille like the 67, 68 and the fastback roofline like the 65, 66. The 2006 Shelby GT-H and later Shelby GT, were based on the standard GT model, but modified by Carroll Shelby International to produce 319 hp by means of a Ford Racing air intake, performance tune, and upgraded exhaust system. The original Shelby GT-H, was a fleet vehicle for Hertz car rental back in 1966. The GT-H was available back then and now only in Hertz's corporate colors: black exterior and twin gold racing stripes Engine; 319 hp 4.6 L V8.