Does crew on an M60A3 count? Loved those and yes you could do a true neutral 360 no problem in them. My commander (the company XO) loved it when I was driving. As I could get us places that they said wouldn't go. Yeah had to be careful over certain terrain as they would through a track way to quick. Bore sighting them was a pain in the back side, but I do have to admit that the trust and teamwork you get on a track is hard to find anywhere else. I left the unit due to moving just as they where getting the M1's in which was a bummer as they where getting the A1 variant which according to some friends really had functioning turret stability at speed.

Michael