Auto World has released many NHRA slot car drag sets over the past years. These pro racing dragstrips are usually 13 feet long and feature two NHRA slot cars that are not available to purchase separately. There are sets that feature either NHRA Funny Car slot cars, NHRA Top Fuel Dragster slot cars or both. These sets include a fully functional Christmas tree featuring Pro and sportsman race modes and in track sensors for red light fouls. The electronic finish gate has in track sensors that trigger win lights. Some of the Auto World slot car drag racing track sets were special releases only available for purchase through Summit Racing Equipment, Mac Tools, Snap-On, etc.