Drives in general

[lukevanoort]

Assuming that you mean just 4 wheel drive without omni wheels, pop-casters, or other such devices, then the answer is no. For the traction bit, as said above, for the most part, traction is independent of surface area in contact with the carpet. 4WD is a path with several pitfalls that must be avoided, and its maneuverability can turn into one of them. If a 4WD (again, assuming no omnis, pop-casters, and that kind of stuff) is longer than it is wide it will not turn well. On the other hand, a 6WD using the same wheels will always turn better (assuming the middle wheel is lowered or coplanar, not raised off the ground) than a 4WD of the same LxW dimensions. This characteristic along with the 6WD's inherent resistance to bottoming out on inclines are two of the major reasons that it is so popular among teams nowadays.