Coolant

See also:

2012 BMW 650 review
One of the greatest leaps in automotive progress this past decade has been the taming of the convertible. Once requiring a tradeoff — open-air enjoyment versus performance and year-round comfort — ...

Self-leveling suspension
The concept The self-leveling suspension on the rear axle assures a continuous ground clearance. To do so, the height of the vehicle is measured by sensors at both rear wheels. If the actual he ...

Brake assistant
When you apply the brakes rapidly, this system automatically produces the maximum braking force boost. It thus helps to achieve the shortest possible braking distance during full braking. This ...