RE: Scratches on hard plastic trim
If you're talking about actual trim panels like where your feet go it's nearly impossible because of that rough pattern they use on the face of the plastic. You can remove the scratch, but it will be more noticable because the pattern won't be there anymore. And then you'd have to sand down the entire car before everything looks copasetic. Then you'll have a sore-azz elbow, and plastic dust all over your car, and panels that are MUCH easier to scratch because a flat surface shows a scratch much easier than that pattern GM uses. But if they get scratched it's much less work to remove them.
2006 Monte Carlo 3LT with a 3.9L engine.
K&N Stock replacement air filter.
Dual 10" JL's with a 800 Watt Rockford Fosgate
Quote of the year: "Don't be like Fink"