Rediscovering the 1967 Ford Mustang Pacesetter Special: A Rare Piece of Pony Car History with Unique Styling and Limited Production Keith White/Facebook Marketplace The Ford Mustang, introduced in 1964, quickly became a sensation, selling over half a million units in its first year. By 1966, sales had surpassed 600,000, but the pony car market was heating up. Mercury…