[lincpimp]

Is the overdrive 10th scale? Any chance of a link? (I am lazy!)

3s or 4s would be good, but we need the diff ratios and the tires height to advise on a good out runner. The MM esc is most likely the best bet, but an external bec will be needed for 4s. 3s might not be enough voltage, but that depends on the motor!