I feel like there's a PPF thread every other day. Whether or not to invest in it is subjective. Some people don't care, some do, its whatever YOU want to do in the end.
That said, our Hellcat in beautiful TorRed paint with full front PPF and ceramic coating sold private party for A LOT more than what the local dealers were quoting. If you're the type to trade in your car, don't bother with PPF. If you're a private party seller, the person buying your car might find value in it over dealers. YMMV.
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