Bentley Motors Limited is a British manufacturer of automobiles founded on 18 January 1919 by Walter Owen Bentley known as W.O. Bentley or just "W O". Bentley had been previously known for his range of rotary aero-engines in World War I, the most famous being the Bentley BR1 as used in later versions of the Sopwith Camel. After the war W. O. Bentley designed and made production cars that won the 24 hours of Le Mans in 1924 and following models which repeated those successes each June 1927, 1928, 1929 and 1930.
Purchased by Rolls-Royce in 1931, when production was moved from London to Derby and later to Crewe, this business has been owned by the Volkswagen Group of Germany since 1998. The business is still based in Crewe, Cheshire, England with their Central Production Facilities there.
Before World War I, W.O. Bentley had been in partnership with his brother H.M. Bentley selling French DFP cars, but he had always wanted to design and build his own range of cars bearing his name. In August 1919, Bentley Motors Ltd. was registered, and a chassis with dummy engine was exhibited at the London Motor Show in October of that year. An engine was built and running by December, and orders were taken for deliveries starting in June 1920; however, development took longer than estimated, and the first cars were not ready until September 1921. Their durability earned widespread acclaim. Appearances were made in hill climbs and at Brooklands and a single entry in the 1922 Indianapolis 500 mile race driven by Douglas Hawkes finished at an average speed in excess of 80 miles an hour.