Auto World Xtraction Ultra-G Release 7, Set A Each HO scale slot car comes complete snap-on body that is attached to a brand new Xtraction chassis with track gripping rubber tires. Each HO scale Xtraction slot car is made to run on any electric HO scale race track including Aurora, Model Motoring, Tomy, Mattel, Lifelike, Tyco and Auto World's...of course. Hobby Talk members Discount available....