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

See also:
BMW EfficientDynamics: BMW 5-Series increasing the lead.
BMW EfficientDynamics technologies are featured in appropriate combinations
on each model, including features such as Brake Energy Regeneration, Electric
Power Steering, a gearshift point indicato ...
Automatic climate control
1 Vent settings
2 Air volume
3 AUTO program
4 Interior temperature sensor — always keep
clear
5 Recirculated-air mode
6 Temperature
7 Defrosting windows and removing condensation
8 Cooling f ...
Run-flat tires
The symbol identifying run-flat tires is a circle with the letters RSC on the
sidewall.
Run-flat tires comprise a conditionally self-supporting tire and a special rim.
The reinforcement in the ...
