In addition to the techology-driven depreciation of our cars, there's always the next round of Tesla price cuts, guaranteed to put you upside down if you financed it. Leasing, you have to walk away at the end so no point adding PPF or even tint - in fact, there's a chance they'll charge you to remove it. If you're buying straight out or financing with a steely determination to keep the car for as long as it takes to either pay it off or get right-side-up on loan to value, then sure go ahead and add PPF and/or tint for looks, ease of cleaning, comfort, and so on. As noted above, though, don't allow yourself to be fooled into believing that PPF will add to or protect value the value of your car. Not likely, when the other drivers of value point so strongly in the other direction. If you want an affordable car that retains value, buy an ICE Toyota that gets great mileage. They're great cars, though they won't be as fun or interesting as these.