The Rolls-Royce 20/25 was the second of Rolls-Royce Ltd's pre-war entry level models. Built between 1929 and 1936, it was tremendously popular, becoming the most successful selling inter-war Rolls-Royce. Its success enabled Rolls-Royce to survive the economic difficulties of the Great Depression years and remain one of world's great brands. A total of 3,827 20/25s were produced, of which over 70% are still on the road today.

The Bentley 3½ Litre was presented to the public in September 1933, shortly after the death of Henry Royce, and was the first new Bentley model following Rolls-Royce's acquisition of the Bentley brand in 1931.