The driving area in the video is a closed area of a highway, and the speedometer in the corner of the screen shows that the speed of the RC car is getting faster, and it finally speeds on the highway at 122 mph. Another RC car in the race belonged to Brandon's friend Matt, which was far behind at 90mph.
Electric cars use mechanical or electronic speed control devices to regulate power. The delivered power is directly proportional to the throttle required by the transmitter. If the player increases the throttle and the vehicle speed was increases. Then use transistors to pulse the voltage to produce better output power more smoothly and efficiently.