Walter Owen Bentley (W.O. Bentley)

Walter Owen (W.O.) Bentley was an engineering apprentice on the Great Northern Railway before turning his attention to internal combustion engines. During World War I, he designed highly successful rotary aero-engines (the BR1 and BR2) for military aircraft. His experience with aircraft engines taught him the value of lightweight materials, specifically aluminum and magnesium alloys, which he later pioneered in the automotive industry to create engines that were both highly durable and exceptionally powerful.

W.O. Bentley founded Bentley Motors in 1919 with a singular, uncompromising vision: 'To build a fast car, a good car, the best in its class.' Drawing on his aviation background, he designed an influential 3-litre engine featuring four valves per cylinder and an overhead camshaft. His cars quickly dominated the grueling 24 Hours of Le Mans, winning the race five times between 1924 and 1930, cementing the brand's reputation for indestructible performance and engineering supremacy. Despite building some of the most celebrated sports cars in the world, W.O. Bentley was fundamentally an engineer rather than a financier. The company struggled during the Great Depression and was quietly absorbed by rival Rolls-Royce in 1931. Although he lost control of his namesake company, W.O. Bentley's founding philosophy of combining performance with bespoke luxury remains the defining DNA of the brand a century later.