So I basically inherited a car, and am looking to clean up the paint some. Problem is the previous owner tried to wax it with a dirty shop towel and scratched the living hell out of it (first pic). Even worse is the engine lid, I dont know what happened to it, but I can not get the spots out (second and third pics), I think they may be in the paint: So far I have tried a vinegar/water wash, clay bar, Meguiars 3 step, a medium polishing compound, and a buffing compound but none of that seems to get the spots out. I am wondering if DACP would help, or if I need to wetsand it. I'm cautious about wetsanding it since I can't feel the spots on the paint. I would really appreciate any advice.