The first-generation Ford Mustang was manufactured by Ford from March 1964 until 1973. The introduction of the Mustang created a new class of automobile known as the pony car. The Mustang’s styling, with its long hood and short deck, proved wildly popular and inspired a host of imitators.
Changes for the 1968 model increased safety with a two-spoke energy-absorbing steering wheel, along with newly introduced shoulder belts. Other changes included front and rear side markers, "FORD" lettering removed from hood, rearview mirror moved from frame to windshield, a 302 cu in (4.9 L) V8 engine was now available, and C-Stripe graphics were added.
The California Special Mustang, or GT/CS, was visually based on the Shelby model and was only sold in Western states. Its sister, the 'High Country Special', was sold in Denver, Colorado. While the GT/CS was only available as a coupe, the 'High Country Special' model was available in fastback and convertible configurations during the 1966 and 1967 model years, and as a coupe for 1968.
The 1968 Ford Mustang GT Fastback reached iconic status after it was featured in the 1968 film Bullitt, starring Steve McQueen. In the film, McQueen drove a modified 1968 Mustang GT 2+2 Fastback. Two vehicles were used in the filming of the movie and only one is still in existence today.
Source: Wikipedia (original)