The Riley 12/4 was a mid-size vehicle that Riley brought out in 1934.
The sedans had a 1496 cc 4-cylinder OHV engine with a power output of 51 bhp (38 kW). Later, the performance rose to 55 bhp (40 kW). There were two models, the Kestrel and Falcon.
After just one year, the model was discontinued.