See also:

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

Overview
The premium compact BMW 1-Series is already synonymous with driving pleasure. Now, the second generation offers state-of-the-art engine and suspension technology, further improvements in fuel effi ...

Start/Stop button
Pressing the Start/Stop button switches radio readiness or the ignition on or off. Manual transmission: if you press the Start/Stop button and depress the clutch, the engine starts. Automatic ...