I was wondering if anyone else has experienced this. My black interior plastic gets "dirty scratched" or something, I dont know how to explain it. The worst spot is on the back driver door on the black plastic trim just below the window. The dog got ahold of it with its nails. Its not scratched but it did make a mark. It looks like a mud spot, goes away when wiped but as soon as its dried it comes back. Is this a result of cheap plastic, or maybe not enough elbow grease? Does someone know a way or product that can get rid of this? I'm at work and can't post pics right now.