Plot: IndyCar Racing II is a racing game developed by Papyrus Design Group. It is the sequel to IndyCar Racing, and was released in 1995 for the MS-DOS, Mac OS and Windows. A little over a year later, the game was re-released, with a few minor upgrades, under the title CART Racing. Wikipedia
Plot: Indianapolis 500: The Simulation is a 1989 computer game for the MS-DOS. It was hailed as the first step of differentiating racing games from the arcade realm and into racing simulation. It was developed by the Papyrus Design Group, and distributed by Electronic Arts. Amiga port was released in 1990...
Plot: IndyCar Series 2005 is a racing simulator developed by Codemasters. It is the sixteenth officially licensed IndyCar video game. The game was released in 2004 for PlayStation 2, Xbox and Microsoft Windows, and is based on the 2003 IndyCar Series season. Wikipedia