Audi e-tron distance warning
Audi e-tron is equipped with distance warning. The distance warning warns you when you are driving to close to the car in front of you.
Most other drivers would not belive any Audi has that kind of equipment. It can be adjusted to 1, 2 or 3 seconds

You can adjust how close you need to drive to be warned in MMI

A common sight for Audi drivers that make them wonder
