Gameplay
Being a racing simulation, NASCAR Thunder 2003 places the player in control of a stock car in a NASCAR race. Players battle AI drivers for race position for a preset amount of laps. As the race progresses, players are forced to make a pit stop to refuel, replace tires and repair damage.
For multiplayer support, NASCAR Thunder 2003 becomes split-screen and eliminates much of the field. Normally featuring the normal NASCAR amount of 43 drivers in a race, it is limited to 18 or less with more than one human driver. As an option, the AI drivers can be disabled, allowing the players to just race each other.
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