Wow the crowd with the SPEED GLIDER 280 w/slots: It features a low and sleek profile to increase speed and reduce drag. By design, most of the wood is removed from the center of the car, this enables you to put more weight in the rear. This feature dramatically increases the potential energy of your pinewood derby car. Each car comes equipped with Axle slots for a standard wheel base and holes pre-drilled holes perfect for our lead wire or tungsten cylinder weights . Wheels and axles are sold separately to give your car that winning edge!