Get your car professionly paint corrected and have him use this. Optimum Opti-Coat 2.0 Permanent Paint Coating
Its harder, repells dirt really good, and doesn't need waxed. We did it to my wife's car. Freaking amazing stuff.
2003 Corvette Z06 - MGW shifter, Corsa X pipe, Corsa Xtreme exhaust, Texas Speed long tubes w/o cats, PowerStop rotors/pads, Conti DWS tires, C6Z51 F&R sways, C5R headlights, tuned
04 GTO - sold