Originally Posted by theDreamer

That would be Inifiniti most of the time, which usually it is, that is the cruise control/guidance system they have which slows the car down automatically if they get to close to another car (it is very annoying). Audi's lane change assist runs on the k band I believe, but I have found if I am in front of the car it does not go off, it is just when I am directly behind one.