my copy and paste from another post:
My BEST advice is to take the VIN number in to the service bay area (lincoln or ford) and ask for an OASIS report. Tell them you're looking to see what service work has been done on it. You are looking for a very short list and with things on the list being of minor vs "transmission" work, "Electrical", etc... (my advice: walk away from cars with major work)
I used edmunds to value what I should be paying.
Good luck and tell us what you did do.
PS dark paint colors tend to show scratches easily. before purchase take it to a do-it-yourself car wash and wash off any possible spray-on product that could hide scratches.
2017 Burgundy MKC AWD Reserve 2.3L 20" rims, Tech Package, Climate Package,