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

See also:
Interior: First-class ambience, intelligent functionality.
A generous and versatile spatial concept, high-grade materials and a
characteristic three-dimensional surface design provide the interior of the new
BMW X3 with a modern, premium ambience and inte ...
Service and warranty
We recommend that you read this publication
thoroughly. Your vehicle is covered by the following
warranties:
▷ New Vehicle Limited Warranty.
▷ Rust Perforation Limited Warranty.
...
Remove attached parts following use
Remove auxiliary mirrors, roof or rear luggage
racks which are no longer required following
use.
Attached parts on the vehicle impair the aerodynamics
and increase the fuel consumption. ...
