Real-life tankers?

MrVic: I don't really qualify but I have driven a Sherman, Tiger I (tho as far as I went barely counts lol) Stuart, Bren Carrier.
I have ridden in a Chaffee, M10, T-34, M3 Lee, Bradley and misc support vehciles
I always wanted to drive a panther or ride in one while getting up in speed but there are so few in the world in operational status.