 However, the latest version draws heavily on the design both the 1967–1968 Mustang and Shelby GT 350/GT500.Ironically, the original Mustang was an American interpretation of European design aimed at the youngest, fastest-growing segment of the market – Baby Boomers – while the latest version interprets American design through a European lens for aging Baby Boomers.The 2-seater Mustang GT was powered by a supercharged 4.6L V-8, mated to a 6-speed manual in the coupe and a 5-speed automatic transmission in the convertible.