Cars are set up to run on factory plastic tracks. You may need to put on smaller rear tires to run certain custom routed tracks. CHECK OUT MY OTHER AUCTIONS! PLEASE ADD ME TO YOUR FAVORITE SELLERS LIST.The item "HO Slot Car IROC Racing Set Viper Chassis with Life Like Gen 2 Stocker Bodies" is in sale since Sunday, July 5, 2020. This item is in the category "Toys & Hobbies\Slot Cars\HO Scale\1970-Now". The seller is "hcslots" and is located in Lakeland, Florida. This item can be shipped to United States, Germany, Japan, Canada, United Kingdom, Australia.