The Ford Mustang revolutionized the American car market and inspired the “pony car” class: a vehicle segment composed of affordable, sporty coupes configured with long hoods and short rear decks. The car made its debut in April 1964 and sold over 22,000 cars on the first day, later achieving over one million cars sold in 1966. The Ford Mustang is the only pony car that has been continuously produced since its debut.