I know there are going to be few wide eyed people reading this thread, but I’m considering fitting a detachable tow bar to my S4 Avant to be used with a bike carrier. I’m wanting to know if anyone has done this as a retro fit and has photos? My biggest worry is what the rear valance will look like afterwards and how visabke the tow bar socket will be once it is detached. I’ve found a few pictures of A4 Avants with aftermarket tow bars but not an S4. For anyone that isn’t bored at this point I’m thinking of fitting a Westfalia detachable tow bar as this is apparently OEM. In terms of bike carriers I’m thinking either a Thule 927 or Whispbar T31. Thanks for reading this post.