I have an HPI sprint 2 converted into a rally car. I also own a traxxas vxl system and a castle creations sidewinder v2 system (5700kv). I would like to know: which motor is best for use in my rally car. (Note: i will gear both motors approprietly.) I will do both offroad and onroad driving. I know I will use the sidewinder esc though due to the fact that I love it's customizability.