See also:

Turn signal
Do not fold in the exterior mirrors During driving and during the operation of the turn signals/warning flashers, do not fold in the exterior mirror, or else the additional flasher lights ...

Lane Change Warning System monitors vehicles following behind
Inattentiveness or misjudgement of the distance and speed of a vehicle approaching from behind can lead the driver into a critical situation when changing lanes. The optional Lane Change Warning S ...

Shoulder support
Also supports the back in the shoulder area: ▷ Results in a relaxed seating position. ▷ Reduces strain on the shoulder muscles. ...