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:

    Safety
    The BMW 650i has not been crash-tested by the National Highway Traffic Safety Administration and Insurance Institute for Highway Safety. Neither organization typically tests low-volume cars with s ...

    Switching on automatically
    Select transmission position R with the engine running. ...

    Tone
    Only treble and bass can be set in the rear for headphones. The settings are made separately for the left and right headphones. Operation is the same as for the front tone. ...