I wish we had the chance to install the Curt Trailer Hitch Receiver part # C11448 on a 2019 Audi A5 that way I could give you this exact measurement but sadly, that is not the case nor does the manufacturer provide this. That said, I have a really good photo for you which is attached that shows how the receiver tube aligns with the rear bumper. As you can see, the receiver tube actually sits about a few inches in from the edge of the bumper which makes for the best look and is what most... view full answer...