Alfa Romeo launched an all new saloon model in 1972, the Alfetta Saloon. Although the Alfetta had a fairly conventional unitary construction, four door body it had an unusual gearbox layout (for a saloon). The Alfetta had a Ferrari style trans-axle. This meant that the gearbox was combined with the rear axle and so provided a better weight balance.
The Alfetta came with a 1.8 litre twin-cam engine to start with, however the engine was reduced in size to 1.6 litres in 1975. From 1977 a more powerful 2.0 litre engine was made available. Twin Weber 40 carburetors were also used for the 1.8 litre model. Production of the Alfetta saloon continued until 1984.