page_title: BMW M12
section_title: Formula 2
hierarchical_section_title: BMW M12 / History / Formula 2
caption_attribution_description: Eddie Cheever driving his 1988 Arrows A10B at the 2008 Goodwood Festival of Speed.
context_page_description: The BMW M12/13 turbo 1500 cc 4-cylinder turbocharged Formula One engine, based on the standard BMW M10 engine introduced in 1961, powered the F1 cars of Brabham, Arrows and Benetton. Nelson Piquet won the FIA Formula One Drivers' Championship in 1983 driving a Brabham powered by the BMW M12/13 turbo. It was the first Drivers' Championship to be won using a turbocharged engine. The engine also powered the BMW GTP and in the 2.0 litre naturally aspirated form, the successful March Engineering Formula Two cars.
context_section_description: As BMW M12, the engine design since the 1960s became one of the most successful engines in racing. Starting with the European Touring Car Championship, it was also used in Formula 2, expanded to two-litre and fitted with four-valve heads, producing over 300 hp (224 kW). In the Deutsche Rennsport Meisterschaft, a 1400 cc variant (with a 1.4 handicap factor equal to 2000cc) was turbocharged by Paul Rosche according to FIA Group 5 rules. At well over 350 hp (261 kW) from the beginning, it rendered the normally aspirated engines in the two-litre category useless. After some development, power, driveability, and reliability improved, especially in the IMSA car, and BMW began to think about entering F1, where a handicap factor of 2.0 required 1500 cc engines.
caption: With the BMW badged as Megatron in this A10B chassis, drivers Eddie Cheever (pictured at the 2008 Goodwood Festival of Speed) and Derek Warwick ensured that 1988 was Arrows' most successful year in Formula One, thanks to frequent points finishes.
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