This is a "roval" built 2 + years ago with GO!!! track. Switch tracks provide the ability to go from the oval to the road course. The road course is 22,8 meters while the oval is 9,85 meters.
It is powered by Pyramid PS 32 LAB power supply adjustable up to 30 volts and can provide 5 amps. We run at 16 volts, normally. We have driver stations with variable braking and direction reversing.