I've sold my past two trucks to the same friend, a 2012 in 2016 with 36K miles on it, and then my 2016 in 2018 with 13K miles.
He knows he got a very well-maintained and well-kept vehicle both times.
I've also sold two of my Infiniti's to another friend, same deal, super-clean cars with low miles and they knew the full history.