Essentially badge-engineered versions of the Farina Westminsters were also produced using the premium Wolseley and Vanden Plas marques.

The Westminster name was previously used by the Austin Motor Company in the 1930s for a four light version of the 16/6 and the Heavy 12/4.

The A90 Six Westminster was introduced at the 1954 London Motor Show at the same time as the small A40/A50 Cambridge saloon range.

It used the new BMC C-Series straight-6 engine with single Zenith carburettor which, at 2.6 L (2639 cc), produced 85 hp (63 kW).

When only two are carried there are, on the de luxe model, fold down centre armrests at the side of each seat.

The handbrake control is under the dash on the right hand side of the steering column which also carries the gear change lever.

The Austin Motor Company also produced a brochure for an A90 Six Westminster police car which featured a floor gearchange.

In October 1956 the A105 received the longer wheelbase with overdrive as standard and automatic transmission as an option.

Twin fog lights, heater and wheel trims were standard although a radio was still an option.

A badge-engineered version of the A95 with different grille, trim, and badges and a bench front seat was assembled and sold in Australia as the Morris Marshal from 1957 until 1960.

This version had an extended (by 2 in/51 mm) wheelbase, which allowed more space in the rear compartment as well as improving the roadholding, a floor-mounted gear lever.

Wolseley produced a 6/110 version, and there was a Vanden Plas Princess Mark II with the C-Series engine, now uprated to 120 hp (89 kW).