Cars Mater-National Championship is a racing game for the Wii console, where you play as Lightning McQueen and his friends competing in various tournaments across America. The main goal of the game is to become the national champion by winning races, earning points, and collecting trophies. In gameplay, players control their chosen car, performing drifts, jumps, and other stunts to gain speed and lead the pack. The race tracks feature different environments, such as desert landscapes, city streets, and rural areas, each with its own challenges. As you progress through the game, new cars, upgrades, and power-ups become available, allowing you to customize your ride and gain an edge over your competitors.