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 ...

Ventilation in rear, center
Thumbwheels* for adjusting the temperature, arrows 1. Toward blue: colder. Toward red: warmer. Lever for changing the air flow direction, arrow 2. Thumbwheels for opening and closin ...

Adjusting
Vehicle Equipment ...