I tried searching for this and I'm a bit surprised no one has mentioned the fact that Model 3 has a built-in "PPF" section on the rocker panel. There is a subtle line that runs across the rocker panel. The paint below that line is coated with a self-healing, PPF-type material. You can use your finger nails to lightly tap and feel the difference. Has any one else noticed this? I wonder how this coating will affect any road rash repairs.