I recently bought a used vehicle from a dealer. I immediately took the vehicle on a 3 hour car trip. The car broke down at near the end of the trip, surging engine, then died, then wouldn't restart. It restarted after a few minutes and I limped (under 60) the rest of the way to destination. The dealer had 2 drivers bring me a (free) loaner car for 5 days while they fixed my vehicle for free. I used to work at a few other car dealerships and at least at those places as well as the one I bought from, this is pretty standard operating procedure. Amazon going to do that?

I actually bought a Hyundai from a dealership 3 hours away and the salesman drove down to where I live (with his dad!) to deliver it.

That was nice, but the main assurance is that I know who sold me the car and there will be no passing of the buck on warranty service or anything else. Amazon has no place in the transaction - even if they offered some or other thing, I don't trust them trying to weasel into the deal. I'd probably wind up with an expensive Armor All subscription I need to cancel.

I’ve had great success, strongarming two Chevrolet dealerships into doing what they should’ve done anyways by threatening (and in one case, actually, following through) to write a letter to Chevrolet, explaining how a particular dealer was making them look very bad.