I think really the only thing I could try to do to improve my car to my liking now would be to somehow find a little more speed in the straight. There was one or two cars that seemed to have a little more speed in the straights. I put full ball bearings in the transmission. Would a larger MaH battery pack give a higher voltage under load or would it no be noticable? Is there any kind of legal tuning that can be done to the motor to gain some speed?