like in real racing everything is a balance, to much of one thing, and not enough of another doest make it better. Also track condition plays into the whole thing, as well as the little bit of down force produced helps with traction. In first page people were talking about making cars STRONGER, and as a result they would be heavier. The point is that current 2 and 4wd 10th scale can always have more power put in them with current motors and batteries, therefore the performance would not be limited as much, although their would be some consequences to change in direction and things like that, but as it was said before, the right setup and balance needs to be found for any situation.