The Hillman Minx is a series of middle -sized family cars produced under the Hillman marque by the Rootes Group (1932-70). There have been many versions of the Minx over the years, as well as various badge-engineered versions sold under the Humber, Singer, and Sunbeam marques.
The Audax body was designed by the Rootes Group, but helped by the Raymond Loewy design organisation, who were involved in the design of Studebaker coupés in 1953. The car went through a series of annual face lifts each given a Series number, replacing the Mark number used on the previous Minxes; there was no Series IV. The engine was new for the model with overhead valves – a first for a post war Hillman. Over the years the engine grew from 1390 cc (in the Series I and II) to 1725 cc in the Series VI. A variety of manual transmissions, with column or floor change, and automatic transmissions were offered. For the automatic version, the Series I and II used a Lockheed Manumatic two pedal system (really only a semi-automatic), the Mark III a Smiths Easidrive and the V/VI a Borg Warner.