The Austin 12/4 was a car produced by the Austin Motor Company from 1933 until 1939. To distinguish it from the earlier four cylinder Austin 12 it has become known as the Austin Light 12/4. At its launch there was a choice of a pressed steel six-light (three windows on each side) saloon called the Harley and a two seat tourer. A second saloon style with a boot, the Ascot, was added in 1934.As with the Morris, The '12' refers to the RAC fiscal horse power rating and the '4' relates to the number of cylinders in the engine.

Powered by an Austin 1535cc side valve engine with a 4 speed gearbox with syncro' on all but 1st gear, the Austin has a top speed of 67mph whilst achieving 25mpg