The main modes of gameplay are Quick Race and Multiplayer, the former a single player race between the player and up to eleven Artificial intelligence opponents, the latter a race of up to twelve human or A.I. racers over the internet. The host of the game chooses the track, weather, physics mode, and number of laps to be raced. Any cars a player has unlocked in the Challenge mode can be used, even if other players in the game have not unlocked them. However, if the host chooses, they can force all players to use the same car. Additionally, only plug-in cars and tracks that are had by all players may be used. If a player chooses a car or track which other players do not have, an error message is displayed and the race can not be started.