The optional 8-speed Automatic Transmission Steptronic sets new standards in 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 dynamic performance. The engine speed is reduced, particularly at high speeds, which in turn reduces both fuel consumption and engine noise.
The converter clutch also helps, even if the car is in manual mode. The fast engine speed transitions and precise transmission tuning guarantee incredibly smooth gear shifts. Integrated functions such as predictive drivetrain, driver recognition and 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, even in manual mode. In Sport mode, more responsive engine settings and a series of integrated functions that use data from the navigation system further boost the driving dynamics. The Comfort mode has more comfort-oriented transmission settings and ensures fewer gear shifts.