Bought this rear corner post because I had damage to the one on my car. I bought it used on eBay. Was disappointed when it arrived because it was all scratched up. With nothing to lose I went to the shed and got some sandpaper. Hit it with 400 then 800, then 2000. The 400 removed all the scratches. The rest were to remove sanding marks from the sandpaper. Finished it off with a microfiber cloth and toothpaste. Came out pretty good. Now I know how to fix the ABS on the Smart if it gets scratched...