Designed by the Issigonis team to follow the 1100 series, the bigger 1.8 litre '1800' was introduced in 1964 with an Austin badge. Morris and Wolseley variants followed, and the car became popularly known as the 'Land Crab'.

The 1800 was not a best seller. By 1975, when it was replaced by the Princess, total production had only reached 390,000.

The Mark II of 1968 was a facelift, with a new grille and interior trim, and was updated again to the 1800 Mark III in 1972. A 2200 model, with a six-cylinder OHC E‐series engine, was introduced the same year.

The 'S' model in the collection has a twin-carburettor version of the 1.8 litre engine.