DOT Quality Grades

Treadwear
Traction AA A B C
Temperature A B C

All passenger car tires must conform to Conform to Federal Safety Requirements
All passenger car tires must conform to Federal Safety Requirements in addition to these grades.◀

    See also:

    Engine and differential
    Always obey the official speed limit. Up to 1,200 miles/2,000 km Do not exceed the maximum engine and road speed: ▷ For gasoline engine, 4,500 rpm and 100 mph/160 km/h. Avoid full-thrott ...

    Hiding Check Control messages
    Press the computer button on the turn signal lever. ► Some Check Control messages are displayed continuously and are not cleared until the malfunction is eliminated. If several malfunct ...

    Exterior
    The new 6 Series measures some 3 inches longer and 1.5 inches wider than its predecessor; it's a few tenths of an inch shorter at the roof level. As before, the car maintains a short front overhan ...