mustang 77Refinements in optional equipment and Decor groups focused on creature comfort, safety and fuel economy. Uncommon luxury in a sporty car introduced potential Ford Mustang buyers in the 1977 Ford Mustang's new brochure.The second-generation Ford Mustang is a pony car that was manufactured by Ford from 1973 until 1978. It was introduced in showrooms during September 1973, in coupe and hatchback