This electric car conversion Kit #1 uses a Alltrax 4845 Controller for controlling the speed of the vehicle. The top speed is roughly 40 mph and the range 3 to 5 miles PER BATTERY per charge. The total distance is dependent on whether you use 6 volt (8 batteries total), or 8 volt (6 batteries total), or 12 volt ( 4 batteries total) batteries. The motor used in this kit is ES-15A Series Motor made by D & D Motors (See parts catalog). This a great EV conversion kit for running around town, short commutes to work or school, and saves you a lot of money.