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:

    Safety
    BMW's inflatable tubular Head Protection System includes side curtain-type airbags for the first and second rows. Front-seat side-impact airbags are installed, and rear side-impact airbags are opt ...

    Display
    The driving distance or the time to the next service is displayed briefly after the ignition is switched on. The current service requirements can be read out from the remote control by the ...

    The Appendage Factor
    M cars have had what I call a high appendage factor — the feeling that the car is an extension of the driver. It's typically experienced in cars whose various systems and characteristics are well- ...