The 8-speed Steptronic transmission sets new standards for comfort and dynamic performance and is a key element of BMW EfficientDynamics. The unusually 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 dynamism. The engine speed is reduced, particularly at high
speeds, which in turn reduces both fuel consumption and engine noise.
The electronically controlled torque converter clutch also helps – even if the car is changed to the manual mode. The fast engine speed transitions and precise transmission tuning guarantee incredibly smooth gearshifts.
In SPORT mode the drive is more athletic and responsive, and COMFORT mode activates a comfort-oriented shift programme with lower engine speeds. Even integrated functions – such as the predictive drivetrain, the constant
monitoring of the vehicle's movements and the traffic situation – considerably affect the way the transmission shifts gears. Regardless of the current driving mode, the system always selects the most suitable gear.