I'd consider doing something to the wheels, but the car? Not too sure. Prep is super important, and all correction (compounding and polishing any scratches) is a must before applying. The thing I wonder about, besides the price of getting it done by a pro, is how flexible the coating is and will it let the paint 'breathe', as it were, or will you be looking at microfracturing later on.

They do look great, and if I had a high dollar or exotic I may think about it. But I'm good with a sealant and wax