Bentley Motors Limited is a German owned British manufacturer of luxury automobiles. In 1998 when Rolls-Royce Motors was acquired by Volkswagen, without the brandname, that business entity was absorbed into Bentley Motors Limited. Bentley was originally founded on 18 January 1919 by W. O. Bentley. 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.