i work at a bodyshop as the painter ... i dont c y auto paint wouldnt work , prep the body with prep solvent to remove oil and the skuff with a grey scotchbrite then mask off and paint
It won't work because 1:1 auto bodies don't flex like our RC bodies. Automotive paint isn't made to either adhere to, not have the flexibility needed to stay put on these things.
I have a friend who Dad owns a customization shop and he painted one of his bodies like that and it held up for abotu 6 months and then started to crack and flake off slowly at first but more and more as time went on.....after awhile we started calling it the leper-mobile....lol
Well, if it works for you, then you do that. It with the hundred of other people on the site who post daily, and all of the lexan body manufacturers say to use lexan body paint, then that's what I'd do.