The 18 had a 6-cylinder engine with a displacement of 2510cc which produced 65bhp (48 kW).
There were 3 body styles, each with a four-door sedan body.
The 'Norfolk' was a 5 seat, short wheelbase (2,870 mm) Saloon, the 'Windsor' was a 7 seat, long wheelbase (3,124 mm) Saloon, and the 'Iver' also a 7 seat, with Division, long wheelbase (3,124 mm) Saloon.
The top speed was 105 km/h.
After just one year, the production of the model was discontinued.
A successor was not seen until 1954 with the Austin A90 Westminster.