The Alfetta was produced from 1972 until 1984 by Alfa Romeo. It was popular due to its combination of a modest design with powerful engines, selling over 400,000 units until the end of its production. The Sedan had a body designed by Centro Stile Alfa Romeo, and the Alfetta GTV coupe was designed by Giorgetto Giugiaro. The Alfetta introduced a new drivetrain layout; clutch and transmission were housed at the rear of the car, together with the differential for a more balanced weight distribution, as used on the Alfetta 158/159 Grand Prix cars. The suspension relied on double wishbones and torsion bars at the front and a de Dion beam at the rear. The Alfetta evolved into the Alfa 90 in 1984. Alfetta's little sister Giulietta evolved to the Alfa 75 in 1985, the year of the 75th anniversary of Alfa Romeo. The 'transaxle' Alfa 75 stayed in production until 1992.