I have the M5 Stuart, and the Abrams... I would have to say that neither are great for OFFRoading with... If a rock or something gets in the way of the track and road wheel or idler wheel you could break a track or worse... I think one of the HenLongs would actually do better and b/c of size do better...I also think the Tamiya would be even better .I love the Pershing and Sherman ....they seem to do very well... hard to break a track or throw one for that matter.... I have the King Tiger and it may break a link b/c of over stressing it but not often and it is an easy fix... just my Opinion....THe 1/6 Humvee is also a good choice..However if it gets loaded up ...ie stuck in rough stuff the motors have an overload cut off circuit to prevent the motors from becoming damaged....Just depends on budget, what you really want to do and did I mention budget????[8D]