See also:

Aerodynamic optimisation of underside panelling
As the excellent drag coefficient (cd = 0.26) would suggest, the aerodynamics of the new BMW 3-Series have been intensively honed in a state-of-the-art wind tunnel. The optimised aerodynamics also ...

Activation/deactivation
Press the button. ...

Controls
1 Change entertainment sources 2 Change station/track 3 Programmable memory buttons 4 Volume, on/off 5 Change wave band ...