See also:

Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 wou ...

Controls
At a glance At a glance 1 System on/off, interrupt 2 Resume speed 3 Store speed 4 Store, maintain/change speed Switching on Press the button on the steering wheel. The marking in the spee ...

The concept
The following can be operated using the buttons and the thumbwheel on the steering wheel: Current audio source. Redial on telephone*. Activation of the voice activation system*. ...