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

See also:
Tire inflation pressure values over 100 mph/160 km/h
320i
328i
335i
...
Controls
1 Screen, left
2 Screen, right
3 Controller with buttons
4 CD/DVD player ...
Capacity
The ski bag can be used to transport up to three
pairs of skis with a length of up to 6 ft/2.10 m or
a snowboard of up to 5 ft/1.60 m. ...
