The first two photos show the rear trim piece on a spring 2015 car. The second two photos show the same piece installed in late 2015 on my Dec 2013 S as part of the fix to prevent moisture from entering the rear taillight housings. It may be hard to see in the photos but the differences are that the later piece has a much deeper indentation in the area where it overlays the taillight and the TESLA lettering is much more prominent. When did this change take place? One wonders what motivated Tesla to slightly change the design appearance of this piece.