I'm currently setting up some cars with 1300mA 3-cell and 25.5/t motor for non-ROAR fun racing. Works great. Lightweight and has the performance of something like 17.5T. Run-time is good, because you are not wide-open all the time as would be the case of 25.5 on 2-cell. Plus the car is much lighter with the small battery, so it is more efficient. Also, small effects help run time, like less heat lost to the wires etc.