I don't have PPF on my Y but this may be a good idea. They sell a 4" x 25" roll with a squeegee. Is this wide enough?
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Ever hear of paint protection film? I've had it on cars. It prevents rock chips on the front and scratches in the back, and its invisible, it's cheap, and you dont have to put it on and take it off every time you park.
What about $10 for invisible paint protection film? Which is actually developed to protect the paint from scratches without having that ugly styrofoam crap that has to be taken on and off constantly.