The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.

See also:
Pinch protection system
If the closing force when closing the glass sunroof
exceeds a certain value, the closing movement
is stopped, beginning at approximately the
middle of the opening in the roof, or from the
tilted p ...
Vehicle Overview
BMW calls the 2006 version of its flagship 7 Series sedan a midsize
freshening rather than a redesign. Launched as a 2002 model, the
current-generation rear-wheel-drive 7 Series has been available ...
Switching on/off
Press the button. ...
