I took delivery of my Model 3 yesterday and did not get home until about 1 am. Needless to say, I hit a few bugs on the way home so I just got finished cleaning the car. While cleaning, I noticed what appears to be holes for clips in the rear wheel fender liner but there are no clips; same on both sides. Is this normal? Also, is the liner normally made of this material, seems like trunk liner, instead of a hard plastic?