The six-speed or eight-speed Steptronic transmission sets new benchmarks in comfort and dynamic performance and is a key element of BMW EfficientDynamics. The particularly fine increments between gears facilitate optimum power delivery at all speeds. This reduces fuel consumption significantly, while allowing the driver to enjoy increased sportiness and dynamic performance. At high speeds in particular, the additional gears reduce engine speed, in turn decreasing both fuel consumption and engine noise.
The torque converter also helps, even if the car is in manual mode. In combination with the fast engine speed transitions and the precise transmission tuning, it provides a very high level of shifting comfort and reduces noise considerably.
The eight-speed Steptronic sport transmission makes changing gears exceptionally smooth thanks to fast engine speed transitions and shorter shift times. It adapts to suit individual driving styles, and is perfect for everything from comfortable cruising through to dynamic driving. In addition to automatic gear selection, it is of course possible to shift gears manually at any time. This is done using the gear lever, or the gearshift paddles on the Sport leather steering wheel or M leather steering wheel.
In Sport mode, the gear shifts are configured for maximum performance. Acceleration is optimised due to very finely tuned gradation of the eight gears. What is more, the engine is continually optimised to guarantee the best possible performance and driving characteristics. Maximum acceleration from a standing start is made possible by Launch Control: this feature shifts automatically in order to make use of the engine's optimum rpm range. Additional sport-oriented shift programmes guarantee an exceptionally dynamic driving experience, with shorter shift and reaction times and the capacity for multiple downshifts.