Rainer Bratenstein

Rainer Bratenstein und Dieter Stappert an geöffneter Fahrertür

D.O.B. 19.07.1939 in Tübingen

Study College Stuttgart (today University of Stuttgart)

Final examination academically qualified engineer in 1967 (mechanical engineering,
automobile technology line)

Motor racing activities

1960 – 1973 road reliability sports motorcycle, Heinkel and Yamaha Motorcycle racing, Kreidler Co-pilot rally racing, Volvo, BMW


1967 – 1969 Audi: R + D chassis
1969 – 1973 Porsche : R + D Chassis: Head of rally team department; Development sport version 911 and 914/6
1973 – 1979 BMW Motorsport GmbH, Munich: Development, preparation and rally racing 2002 rally
1974 F2 engine with throttle valve injection, dry sump, gear rack and pinion, 15 inch wheels and disk breaks also at rear.
1975 3.0CSL managing and race entries IMSA series, USA
1976 3.0CSL combustion and turbo engine at WTCC
1977 320 Gr. 5 development and race entries, junior team DRM with Manfred Winkelhock, Marc Sure rand Eddy Cheever.
1978 320 Gr. 5 development turbo engine and race entries at the WTCC in co operation with McLaren Engines Detroit. Start of development Gr. 4 M1 according proto type P 4.Emphasis was put on reduction of body weight, break system with employmentof components from 3.0 CSL, engine and gearbox coolant,aerodynamic adjustments for racing, introduction of rear spoiler.Test drives in Zeltweg, Nürburgring and Paul Ricard.
1979 managing works entries for the F1-Pilots during the Procar Series.
1980 – 1983 1983 635 CSi Gr. A for touring car ECC; M 635 CSi 4-valve engine street version
1984 – 2002 BBS head of R + D department; BBS head of quality control.