AFX Shelby Slot Car Racetrack Set Track, Cars & Accessories Missing One Car. Track is complete and functional aside from one of the generally included cars not being present. The AFX Shelby Slot Car Racetrack Set is a high-quality HO scale slot car racing set designed for adults aged 17 years and up. Made by AFX in China, this original set includes track, cars, and accessories to create a realistic racing experience. The set features the AFX Shelby Slot car model, perfect for enthusiasts who enjoy slot car racing. While missing one car, this set is still complete enough to provide hours of fun and excitement for racing fans.