Wow the crowd with the SPEED GLIDER X 285: Cut low and thin,It features a 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 features holes drilled for perfect rear weight placement and balance using our lead wire or tungsten cylinders. Precision drilled axle holes for an extended wheelbase with 4 wheels on the track are perfect or those who want to race with 4 wheels on the track. For a 3 wheeler (faster) we recomend the SPEED GLIDER X 286. Wheels and axles are sold separately to give your car that winning edge!