As others have stated a good quality vinyl like 3M and you'll be fine. Just stay away from the eBay crap. Plastidip on the roof does not work out the best or look the best. Would take you 3-4 cans and you have to be careful on how you spray it to get the coats to look even. Nowhere even remotely durable as the vinyl or as easy to remove.
Hatch Nation #9
"2 by 2 Hands of Blue."