[vablings]

My wife's VW will show the following distance and if you are too close a small icon is displayed on the dash. I believe its warning you that if there is emergency breaking required for the car it will not be able to stop in time.

It also shows how close you are to the car Infront in "car length" units with a nice big indicator and the adaptive cruse control will follow that distance mostly on its own between 30-100mph