I've already posted this elsewhere on this forum, but I was so impressed, I feel I must share it again.
I drive over a narrow bridge every now and then. Not too long ago, a pickup decided we would both fit, and drove up on the bridge, and I dodged. The passenger mirror whanged the bridge support so hard that the mirror flipped back, hard enough to break the mirror on the passenger door window - actually left a mark on it.
I pulled over at the next turnout. Where the bridge hit was partly absorbed by the chrome base, which sits out from the painted top cover, but the cover had a good four inch by one inch scrape along the paint. I was sick. Then I remembered the PPF. I should have taken pictures, but when I pulled the 3M off (NOT Xpel), there was just the faintest mark, which buffed out in about two seconds.
I have replaced the plastic, hardly believing that it does this well, but seeing is believing. I also close the mirrors now when I cross the bridge.