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:

    Correctly adjusted head restraint
    A correctly adjusted head restraint reduces the risk of injury to cervical vertebrae in the event of an accident. Adjusting the head restraint Correctly adjust the head restraints of all occu ...

    Torsion-resistant body, optimal weight, wide range of safety features
    The new BMW Series 1's lightweight body makes it more agile and improves passenger safety, with high-strength steel being used to increase torsion resistance and the strength of the passenger safe ...

    State-of-the-art diesel engines: high-torque, smooth-running and efficient
    The sports sedan's BMW TwinPower Turbo diesel engines likewise incorporate the very latest in BMW engine technology. Latest-generation common rail direct injection, turbocharging and all-aluminium ...