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 have benefits for noise reduction and roadholding. In particular, streamlined design of the underside plays a big part in minimising lift forces. The BMW 3-Series' aerodynamically optimised underside - with extended streamlined panels at the sides, under the engine compartment shield and at the front part of the exhaust tunnel - provides unprecedented standards of sealing. Additional aerodynamic covers, which create a diffusor effect at the rear axle, further reduce drag and lift forces, while at the same time improving stone chip protection. Also, the front aprons are designed to create an "air curtain" effect which reduces turbulence in the wheel arch area - again reducing drag. The aerodynamically designed wheel arches, and the air deflectors in front of them, likewise help to reduce fuel consumption.

    See also:

    Washer fluid
    Washer fluid is flammable. Therefore, keep it away from ignition sources and only store it in the closed original container that is kept out of reach of children; otherwise, there is a risk of pe ...

    Entering a phone number
    Dialing a number When entering phone numbers, you can switch between entering letters and numbers. Service numbers can be entered more easily, e. g. 1-888-BMW-CARD. 1. "Telephone". 2 ...

    Headlamp range control
    With halogen headlamps, the headlamp range of the low beams can be manually adjusted for the vehicle load to avoid blinding oncoming traffic. The values following the slash apply to trailer oper ...