LMAO, if that is what a CPO car looks like, then Im a navy seal. (Im not.)
OP, screw that dealer lol. I know some of you will laugh, but go to Carmax like I did. Watch what they offer you for the mustang lol, it will probably be the low end of KBB private sale, not trade in.
I really didnt want to like Carmax, but you just cant beat them. Got my 16 2SS M6 in flawless condition (not a single rock chip) @ 8k miles, 33k OTD, yes OTD with GAP, and 11k for my trade in which was valued @ 9k KBB. They even threw in a new set of factory runflats lol. Its like the amazon of car buying lol, they are popping up everywhere and putting dealers out of business.
Ill never buy a car from a stealership again lol.
God that felt like an advertisement, im not affiliated with carmax in anyway lol, just a VERY HAPPY CUSTOMER.