The dealership had previously repaired the moon roof, and inadvertently damaged the headliner. So, while working on the emissions issue they replaced the whole headliner. The replacement is a little cheesier than from the factory, but good enough.
There's still an exterior rattle that they claimed they fixed 3 times now. At least they're trying. Last time I took it in, they removed several trim pieces and drove it around. I'm just going to have to track it down myself I guess.
I bought a new Mustang in 2010, and paid for the 5 year extended service plan. The hood paint corroded and the dealership repainted it, and gave me a rental car for the week. The hood has since corroded again and it's out of warranty now. I am mulling over splurging on a new paint job, with a classic Mustang racing stripe.
Buying the Mustang, I went to three dealerships. The first one, I got a test drive, and then the salesmen just walked away. I think he assumed I wasn't serious when I said I was buying a car that day. The second dealership, the salesman was super sleazy and pushy, and so I walked away. The third dealership, the salesman was really relaxed and professional. He asked if I was financing, and when I said no, he said he didn't like to waste time haggling and was happy just to move inventory. He offered me a price just $200 above the friends-and-family x-code price.
We also had a good time at a Toyota dealership, but any car buying with them had a $6290 markup....
Given the state of the market, choosing between many cars wasn't an option, but outside of that, I care that the process is fast, there aren't sneaky charges, and the interaction is respectful. I prefer all my paperwork printed out, and that's what they did by default.