The XR Car-Tridges are 8 unique vehicles designed to work with the HotWheels website XR Player. Load one of the Car-Tridges into the player and see that exact vehicle as the race car on your computer screen in the exclusive XR Player game, "Race the World." Each Car-Tridge works best in one particular environment, so choose the best car and conquer each level of the game! Car-Tridges also unlock secret game areas on HotWheels website.
