Boy, I feel your pain! I'm in the same boat...
So far I've tried Megs Plastix with no ressults.
Next will be Renova product.
I also have light scratches from something that hit it and one from using the wrong MF towel rubbing too hard.
I've got the film all over: front bumper/air-dam, hood, headlights, fender wings, rocker panels, side mirrors and door cups.
I'll update once weather changes... DAMN SNOW!
Regards,
Deanski