If you don't wanna go through the bodywork, get some sand papers, rub the rust off, and with a small painting brush, put some antirust liquid material on the metal, leave it to dry for a couple of days, then get the color of your car and put it over the antirust material...
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Danny
1994 Silver SVX in hybernation, awaiting for the
monsterous awakening (Lebanon)
1967 Mercedes-Benz 250SL Euro Specs, Hard/Softtop, White/Red. Under Complete Restoration
2013 Mercedes-Benz SL350 Euro Specs, White/Red. Mint... Another step into SL Collection.