See also:

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

General information
The glass sunroof and the sliding visor can be operated together or separately, using the same switch. The glass sunroof is operational when the ignition is switched on. Danger of pinching M ...

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 ...