I have had a squeaking/creaking sound when driving over rough surfaces coming from the rear of my U.S. spec 2013 Evoque Coupe since new and it has gotten progressively worse. I found the source. There are two large pieces of styrofoam framing opposite sides of the spare tire. I guess this is to fill the void (hide wiring looms) and act as an insulator from road and tire noise. As its made of styrofoam, it produces a squeaking sound when rubbing against other surfaces. It's not securely fastened which causes movement and makes the problem worse. As it frames the tire I pushed towels in the two 1/2" gaps between it and the spare tire to stop the movement and stop the noise. Finally no squeaks! This is really a cheap oversight of engineering that shouldn't happen in a Range Rover.