One important safety feature in every BMW is the sophisticated composite construction of hydraulic-pneumatic impact absorbers, mechanical impact elements and deformable side elements. The bumpers with their reversible aluminium impact dampers can absorb blows of up to 6 km/h without so much as a scratch.
Special deformation zones at the front and rear of the car can withstand impact speeds of 15 km/h; they keep repairs costs down as they can simply be replaced. Only at higher speeds do the engine supports begin to deform in a predefined way - they do so precisely to the extent necessary to protect any people involved in an accident as well as the vehicle itself.
