The Oldsmobile Cutlass was a range of automobiles produced by General Motors' Oldsmobile division between 1961 and 1999. At its introduction, the Cutlass was Oldsmobile's smallest model; it began as a unibody compact car, but saw its greatest success as a body-on-frame intermediate. Introduced as the top trim level in Oldsmobile's compact F-85 line, the Cutlass evolved into a distinct series of its own, spawning numerous variants, including the formidable 442 muscle car in 1964, premium Cutlass Supreme in 1966, and outright performance Hurst/Olds in 1968. The Cutlass was built in six generations: 1st Gen (1961-1963), 2nd Gen (1964-1967), 3rd Gen (1968-1972), 4th Gen (1973-1977), 5th Gen (1978-1988), and 6th Gen (1997-1999).