Porsche decided to end its 20-year history of factory sports car racing and sold the 908/03 cars to customers. In 1975, some 908s were fitted with turbocharged engines, similar to those used in the Porsche 934 GT car. Several customer-908s were upgraded with 936-style bodywork. The Porsche 908/80 Turbo of Joest and Jacky Ickx which finished 2nd in the 1980 24 Hours of Le Mans turned out later to have a real Porsche 936 chassis, though.