brushless

[RC-Monster Mike]

I would have to see the car and the competition! The higher the voltage, the higher the efficiency (generally speaking). I would run a LiPo setup (minimize weight) most likely with a 3100 basic motor and around 6 cells (22.2 volts). This should be a rocket in a lightweight car. It is fast in an e-maxx! If it were me, I would also play around with a few motors to see what works the best for the track you run. Weight mey be helpful for traction in some cases, while on a higher bite track, the lighter weight will be quicker.