At the beginning of Radiator Springs is still pretty dead. The player can gradually fulfill orders as are, for example tow remaining cars, racing or lost crates / designation / corncobs or collect oil cans. This he wins coins and stardust. The Stardust level up to each race car, the coins can be to buy boosters, additional buildings and use "weapons".
And so arises gradually a lively Radiator Springs, where you can provide yourself in the game thanks to the secret organization CHROME even missiles reinforced races a la "Super Mario Kart". However, there have the race in itself, the AI (Artificial Intelligence) of the computer-controlled race car is not without. Frustfrei should therefore be willing racing driving.
From my earned five stars for this Infinity extension. The price / performance ratio I think is reasonable, cost but individual extension figures about twelve dollars, but does not include a new, playable world. For fans of Disney Infinity anyway recommended.