BMW M GmbH (previously: BMW Motorsport GmbH) is a subsidiary of German car manufacturer BMW AG.BMW M, “M” (for Motorsport) was initially created to facilitate BMW’s racing program, which was very successful in the 1960s and 1970s. As time passed, BMW M began to supplement BMW’s vehicles portfolio with specially modified higher trim models, for which they are now most known by the general public. These M-badged cars traditionally include modified engines, transmissions, suspensions, interior trims, aerodynamics, and exterior modifications to set them apart from their counterparts. All M models are tested and tuned at BMW’s private facility at the Nürburgring racing circuit in Germany. BMW M also remains the only performance based company to cater motorcycles at the same time, specifically the BMW S1000RR.
Established in May 1972 with 35 employees, it grew to 400 employees by 1988, and is currently an integral part of BMW’s market presence. The first racing project was BMW’s 3.0 CSL.
After the success of BMW M products like BMW 3.0 CSL in racing venues and the growing market for high performance sports cars, M introduced cars for sale to the public. The first official M-badged car for sale to the public was the M1, revealed at the Paris Motor Show in 1978. The M1, however, was more of a racecar in domestic trim than an everyday driver. The direction of the M cars changed with the 1979 release of the M535i, which was a high performance version of BMW’s popular 5 Series mid-size sedan.BMW Motorsport GmbH supplied the 6.1 litre V12 DOHC 48 valve engine that powers the McLaren F1, which, like its engine supplier and manufacturer, has enjoyed plenty of racing success, famously winning the 24 Hours of Le Mans in 1995, the first year of competition for the GTR racing variant.At present, BMW M has offered modified versions of nearly every BMW nameplate, except for the z1, 7 Series flagship luxury sedan and the X1 and X3 compact crossover SUVs. There is no BMW M version of the 7 Series, as BMW did not want its flagship saloon to be powered by a high-revving engine, and as the recent top-performing versions (usually the BMW 760Li) have V12 engines which while powerful are considered too heavy for a sporty offshoot. So far the unofficial “BMW M7” is theAlpina B7, which is produced on BMW’s assembly line though its engine and finishing touches are done by auto tuner Alpina.However, as BMW M shifted to turbocharged engines, there are rumors that there is an in-house BMW M7 in the works, and it is speculated that its performance may exceed that of the BMW 760Li and Alpina B7.The BMW X5 and X6 sport activity vehicles received M derivatives for the 2010 model year onwards. These are the first M vehicles with xDrive four-wheel drive and automatic transmissions, and also the first M-badged SUV models. However, the E70 and E71 X5 and X6 M were actually developed by BMW Group rather than by BMW M.Although these are considered the most well known in-house tuning divisions, BMW M has a considerably different philosophy than Mercedes-AMG. BMW M has emphasized tuning only vehicles with “Lateral agility” (which has long been the 3 Series, 5 Series, and roadsters), while AMG has created high-performance versions of many of its nameplates, including flagship sedans and SUVs. Accordingly, “an M car has to be responsive and fundamentally keen on turning as well as accelerating. The M5’s technical spec is all about connecting the driver to a car that reacts blindingly fast, whatever request the driver hands down.” Until the 2010 model year, BMW M has also never used supercharging or turbocharging, unlike Mercedes-AMG or Audi; for instance the E39 and E60 iterations of the BMW M5 (using naturally-aspirated engines) competed against the Mercedes-Benz E55 AMG (with a supercharged V8) and the Audi RS6 (twin-turbo). BMW M vehicles typically used manuals and semi-automatic transmissions (the most recent type being a dual clutch transmission), in contrast to Mercedes-AMG which largely has automatic transmissions (the 7-speed AMG SpeedShift MCTdual clutch transmission was used on new models from 2009 onward). However, the BMW X5 M and X6 M were the first M-vehicles offered with automatic transmission, a 6-speed Steptronic unit, since this works with xDrive.BMW M engines were traditionally low displacement naturally aspirated high revving engines, particularly the S85 V10 in the E60 M5 and E63 M6 and the related S65 V8 in the E90 M3. These are the most powerful engines BMW has ever built (not including the BMW S70/) without supercharging or turbocharging, with an output of 100 hp per liter of displacement, and each has won numerous International Engine of the Year Awards.As late as the early 2000s, BMW regarded forced-induction (supercharging or turbocharging) as low-tech shortcuts to boosting horsepower, stating that this adds weight and complexity while reducing throttle response.[10] BMW purists have noted that while forced induction and/or large displacement does produce more torque for better day-to-day driving, most of them like the “character” and sound of low displacement naturally aspirated engines with high redlines.However, the late 2000s international regulations trends on reducing CO2 emissions and fuel consumption are cited as the reasons not to continue further development on naturally aspirated high redline engines. The N54 twin-turbo inline-6 which debuted in the 2007 BMW 335i (E90) gives almost equivalent performance to the E46 and E90 iterations of the BMW M3, while being much more practical and fuel-efficient as a daily driver.Starting with the X5 M and X6 M, and featured in the F10 M5, BMW used the twin-turbocharged S63 which not only produces more horsepower and torque, but is also more efficient than the S85 V10. Also unlike the S85 and S65 which do not share a design with non-M BMW engines, the S63 has significant parts commonality with the base N63 V8 engine (which is also has twin turbochargers) making them less expensive to build.At the present (2012), BMW has not considered supercharging yet.As of the 2013 model year, the BMW M3 (E92/E93) is the only “traditional” M car left, as the rest of the M lineup features turbocharged engines, and the next iteration of the M3 (F80) and M4 (F82/F83) are expected to feature a twin turbo straight-6 engine.