Need some advise. I tried Meguiar's Mirror Glaze 8, Maximum Mold Release Wax on model car (Metal, finished with automative paint). My question is, would this be any better on a real car, looking that after you apply it on, nothing seems to be able to stay on it and also lasts a real long time. (Believe this formulation is the same as the old Meguiar's furniture polish? Correct me if I'm wrong here.) So back again, would this wax be a better alternative on cars, of which applied first and after that, Gold Class or NXT etc....advice/comments much appreciated.