See also:

Backrest width
Change the width of the backrest using the side wings to adjust the lateral support. ...

The concept
This system reduces undesirable vehicle motion when using a dynamic driving style or traveling on uneven road surfaces. The system enhances driving dynamics and comfort as required for the road ...

BMW 320d: powerful torque, outstanding smoothness and further improved fuel efficiency
The new-generation BMW 3-Series Sedan features the BMW TwinPower Turbo four-cylinder diesel engine of its predecessor, which has been honed for even greater fuel economy and lower emissions with n ...