i am personally still waiting and anticipating a v-twin for our trucks. but i have seen on here about a year and a half ago where a guy put 3 traxxas 2.5 motors on a t-maxx. the only thing i could think of is how hard it was to keep a good tune on all three. also you will have one that will have a better stronger tune then the other (s) and will be your main drive while the others will just idle more.