IndyCar Series is a racing simulator developed by Brain in a Jar and published by Codemasters. The game was released in 2003 for PlayStation 2, Xbox, and Windows. The game is based on the 2002 Indy Racing League. A sequel to the game, IndyCar Series 2005, was released in 2004 for PlayStation 2, Xbox, and Windows based on the 2003 IndyCar Series.