An RC car meant for general hobby purposes will go anywhere from about 25 to 70 mph, depending on if the car is meant for racing or not. RC toys made for children will go much slower, while modified or drag RC's can reach top speeds of over 100 mph! Nitromethane (nitro) boosted cars were originally the car of choice for speed right out of the box, however, advances in electric models have made them a popular and accessible choice if high speed is important to you.