The manual six-speed transmission, standard in the 2.0i, 2.5si, 3.0si, 2.0d and 3.0d, guarantees excellent driving dynamics by ensuring precise and rapid gear changes in all conditions. The automatic transmission also leaves nothing to be desired. Fitted with Steptronic and Adaptive Transmission Control, the six-speed automatic optional in the X3 2.5si, 3.0si, 2.0d and 3.0d (standard for the X3 3.0sd) leaves you free to enjoy the ride, especially in city traffic or on long-distance journeys.