The dealerships are valuing it at trade-in value. They give you a low price because they dont actually want it. You will get more by selling it privately.

That's cosmetic damage that does not affect the actual operation of the vehicle, so it is completely irrelevant. What wpuld your car be worth private party if it were in perfect condition? If your car is mechanically sound, keep driving it. Don't waste money fixing stuff that doesn't matter, like dents and scratches and unnecessary accessories like seat warmers. You can drive a car for years even when the trunk won't open anymore and the radio is broken and the headliner is held up with thumbtacks and the door is held together with deck screws. Yhat is an accurate description of the car my kids drove for an additional 6 years after it got too ratty for me to mind handing it over to teenage drivers. Eta the check engine light had been on for over a decade when we finally got rid of it and I'm 99% sure the cat was bad when I bought it.