Close the windows and glass sunroof

Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption.

    See also:

    Front airbags
    Front airbags help protect the driver and front passenger by responding to frontal impacts in which safety belts alone cannot provide adequate restraint. ...

    The concept
    This system reduces undesirable vehicle motion when using a dynamic driving style or traveling on uneven road surfaces. The system enhances driving dynamics and comfort as required for the road ...

    System limits
    Sudden tire damage Sudden serious tire damage caused by external influences cannot be indicated in advance.◄ The system does not operate correctly if it has not been reset. For example, a f ...