Throughout its history, BMW cars and motorcycles have been successful in a range of motorsport activities. Apart from the factory efforts, many privateer teams enter BMW road cars in touring car racing. BMW also entered cars or provided engines in Formula One, Formula Two and sportscar racing. BMW is currently active in IMSA, the Isle of Man TT, the North West 200, the Superbike World Championship and the Deutsche Tourenwagen Masters (German Touring Car Championship). An outstanding role has been played by the 1,500 cc BMW M10 engine block. The four-cylinder started with modest in 1961, became successful in touring cars, developed over in 1970s Formula Two, and at the ripe age of a quarter century, produced almost twentyfold its original power in the 1986 turbocharged BMW M12/13/1, producing an outstanding 1400 hp. This engine became wideley regarded as one of the most powerful, if not the most, powerful engine in the history of Formula 1 as well as being the most powerful engine ever built by BMW. As the base of the BMW S14 engine of the original BMW M3, it collected many more wins. Other impressive displays of engineering involve the production of the BMW S70/2 engine, implemented in the McLaren F1, which set the world record for "world's fastest production car" on March 31, 1998. As well as achieving a Guinness Book of World Records record for longest continuous Drift (See Below "Guinness Book of World Records") Motorcycling Isle of Man TT BMW enjoyed a dominant period in motorcycle racing prior to the Second World War with notable achievements such as Georg Meier's victory in the Senior Race at the 1939 Isle of Man TT. Post war BMW success mainly revolved around Sidecar racing, the marque becoming the premier machinery on the Snaefell Mountain Course, the smaller Clypse Course and from 1949 until the mid 1970s the Sidecar World Championship. BMW-powered sidecars have won numerous World Championships, notable competitors being Rolf Steinhausen, Klaus Enders and Max Deubel. The pre-war dominance enjoyed in motorcycle road racing faded post-war, the main road racing campaign centered on Production Bike Racing with Helmut Dähne campaigning the marque with BMW's best post-war finish until the second decade of the 21st Century being a 3rd-placed position in the 1974 Production 1000cc TT. BMW officially resumed road racing in 2009, entering the World Superbike Championship with its BMW S1000RR. This resumption also saw its