Spontaneous propulsion.

The six-speed automatic transmission Steptronic
in the BMW 5 Series Sedan.

Precisely calibrated to maximise the dynamic responsiveness of the BMW 5 Series drivetrain, the new six-speed automatic transmission Steptronic system delivers superb control of drive power. The fully electronic system delivers lightning-fast gearshifts without the slightest loss of power. The electronic gear selector lever lets you change gears sequentially if you wish, and "Park" can be activated with the press of a single button.