These stories will make sure I take lots of pictures and document everything at vehicle pick up and lease turn in.
Years ago I leased a BMW and at pre-lease turn in inspection I was told the rear tires were bald and I would need to replace them or pay to have it done when I do final turn in. I told them I am 20% under mileage for my lease and that they will make much more money when selling it with the lower miles than the cost of the tires. I told them to eat the cost of the tires or I will put the car on jacks and run up the mileage to my lease max miles and then turn it like that if they stand firm on me paying for the tires. They took notes in their pre-turn in inspection forms and when I turned the car in (with the lower miles), I was not asked about the tires and never received a bill for the tires and that was years ago.
I hear that as a standard procedure, for liability issue, a used car get fitted with new tires when sold from a dealer.
But I assume that a dealer would document the tire's thread values during the inspection, and if not really needed they would/could keep the tires (?).
A dealer certainly try to resale cars as fast as possible, so if the dealer has to raise the price of a used car, because of new tires to preserve the profit margin,
this might make the car less attractive.
At the time I was considering getting a Model 3, I was looking at a used Audi A6 Allroad Quattro Wagon at the Audi dealer in downtown Oakland, CA.
I noticed that the used Audi had very narrow tires compared to the original full size spare tire in the trunk.
Because of those narrow tires, the ride was very uncomfortable. I mentioned this point to the dealer agent who agree with me.
(The dealer agent was a real car enthusiast, he was driving an Audi S8 Wagon, so he certainly know more about about car handling than me.)
So just to save few buck, the used car's tires were replaced with cheap narrow tires.
This was a real waste because I would have to buy new tires... this was a no-no for me.
Glad I finally bought a Model 3 instead !!! (Well, a Model Y would have been more what I was looking for but the MY didn't existed yet....)