So can you wax, coat whatever over the top of the film?
I like the idea of doing the "Impact" area's. Might consider just rapping the whole truck to protect the sides from desert pinstripes!
Does the film have any of the advantages of the coatings? Easier to wash....
You should not coat the self healing films (xpel) with any of the ceramic sealers/coatings. It interferes with the self healing properties of the material.