The Princess name was first used by Austin as the top model of their 4-litre postwar car, and then for the 6-cylinder Rolls-Royce engined Vanden Plas from 1964-1968.
In 1975 British Leyland made the Princess name a marque in its own right, when it was used for the wedge-shaped 4-door saloon that had previously been sold as an Austin, Morris or Wolseley 18-22. It was offered with a choice of transverse 1798cc ohv 4-cylinder or 2227cc ohc 6-cylinder engine. Both models used Hydragas suspension, with power steering available on the 6-cylinder model. In mid-1978 the 1798cc engine was replaced by a 1698cc or 1993cc engine. In March 1982 the Princess was replaced by the Austin Ambassador, with a total production of approximately 129,000 cars.