My Roadster started out as a Dealer demonstrator, and has proved to be a fantastic car, despite three owners in three years and who knows how many drivers.
But the same rules apply as with any car. Assume nothing and do a good inspection.
I agree with this. Also and IMHO, far better to have a car that is regularly used, than to buy one with an ultra low mileage.
Bud
4/4 - Stanley