[RC-Monster Mike]

On another thought, the biggest limiting factor for your goals is probably the cells. The batteries can only deliver so much, regardless of the motor, so they will all perform pretty similarly. The hotter motors will lower the actual voltage while you are driving to a point where it is actually delivering the same power as a slower motor with less voltage drop. If you want the most from your system, consider running 14 cells. The higher voltage will add some power. The 3600xl will handle the 14 cells and give you great performance on 12 cells. For your needs, this would be my favorite pick.