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

See also:
Compact Design
Just as BMW's compact 3 Series ranks below the midsize 5 Series, the
five-seat X3 sits in the shadow of the larger X5. The styling clearly says BMW,
but it's the multi-paneled look of earlier mode ...
The M Formula
Following the M car formula, the 1M features increased power, a manual
transmission, rear-wheel drive, a modified suspension, fat tires and a
distinctive look — perhaps more distinctive than the o ...
Before mounting
Before mounting child restraint fixing systems,
ensure that the rear seat backrests are locked. ...
