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

See also:
Even more entertainment at the wheel: with BMW Live and BMW Online
Subject to owning a suitable internet-compatible mobile phone and arranging a
requisite data tariff, new BMW 3-Series Sedan customers can enjoy a selection of
services from the existing BMW Online ...
Office
...
Ashtray
Opening
Push the ridge on the cover.
Emptying
Lift out the insert.
Lighter
With the engine running or the ignition switched on, press in the cigarette lighter.
The lighter can be pulled out as s ...
