When I purchased my 1969 AMX new in Jan. 1970, it was a left over. I could have saved 17% of the cars price if I would have let a Factory Rep put the 1st. 500 miles on it, thus making it a "Factory Official" car.
In other words previously titled to AMC.
I really thought about doing it because $500.00 was a lot of money in 1970.
My Dad, (the Dealer's manager) advised me against it, because the Reps were known for not being very gentle with their factory supplied vehicles.
I went ahead and took my Dad's advice and paid the full price.
An old coworker of mine purchased a mechanically identical car to mine, and got a better deal, from my Dad because it was one of the "Factory Official" cars.
He kept the car perfectly stock, just like I did, and a few years later we accidently ran into each other at the drags, and with nothing more than a pair of slicks, he was running a full second faster than I was.
A couple years later, I ran into him again and he told me with just a little over 50k on the engine it blew up. Said he'd never buy another AMC, a "stock" 13 sec. automatic....AMC.