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:

    Driving
    I'd feel a bit bad for the driver on that trip, though. While the 400-horsepower, turbocharged 4.4-liter V-8 engine is relatively sprightly in the 750i, I thought it was a bit of a laggard while t ...

    Switch off the engine duringlonger stops
    Switch off the engine during longer stops, e.g., at traffic lights, railroad crossings or in traffic congestion. Auto Start/Stop function The Auto Start/Stop function of your vehicle automatically ...

    Winter tires
    Do not drive with a tire tread depth of less than 0.16 in/4 mm. Below a tread depth of 0.16 in/4 mm, tires are less suitable for winter operation. ...