Originally Posted by Eppieguy
aka Rear Fog Lights. They are usually in the rear bumper but since I don't have my Q7 yet I cannot confirm that US models have them.
All US Audis have rear fog lights. However, he is talking about the all weather lights which are up front and not on all Audis.
They basically just shine a bit more light out to the sides of the vehicle. Not a huge difference IMO.