All accidents are reported to Carfax. Even if the car is repaired And in excellent shape if there is an accident report the car is devalued.
No used vehicle, even luxury vehicles are worth enough to fret about diminished value.
If the dealer doesn't accede to your request for more loot, you'll have to sue them to pursue it.
Sure, you can make the argument with the dealer.
You might receive an extra $100, maybe $200 because your custom is appreciated, or just to shut up and go away.
If that $100/$200 is worth it, go for it.
On a personal note, I take great pride in my vehicles.
I fawn over them.
I protect them.
I have them detailed.
I've learned in the last couple years, enjoy them.
They aren't collectibles, fine art, precious stamps, or coins.
They're just tools, implements that take me from place Aaa to place Bbb.
I enjoy them, but I no longer obsess over them.
I've turned my obsession on the few people tat deserve it, the ones I love.