By 1975 Wolseley was a British Leyland badge name, and most models had a top-end Wolseley version. The 1800/2200 replacement, the 18-22 series, was no different having Austin, Morris and Wolseley versions.

The Wolseley, unlike the others, was offered in only one specification, the most luxurious model in the range. Most striking was the dramatic wedge-shaped body which critics either loved or hated. The biggest engineering change was the use of Hydragas suspension, first seen on the Austin Allegro in 1973.

After only six months in the marketplace, the 18-22 models dropped the individual Austin, Morris and Wolseley names and became the Princess. This model was therefore the last to bear the Wolseley marque after almost eighty years.