- https://en.wikipedia.org/wiki/Papyrus_Design_Group
- https://en.wikipedia.org/wiki/IRacing#Development
Windows version: https://archive.org/details/NASCAR_Racing_2003_Season_USA
Mac OS X version: http://macintoshgarden.org/games/nascar-racing-2003-season
- https://en.wikipedia.org/wiki/Papyrus_Design_Group
- https://en.wikipedia.org/wiki/IRacing#Development
Windows version: https://archive.org/details/NASCAR_Racing_2003_Season_USA
Mac OS X version: http://macintoshgarden.org/games/nascar-racing-2003-season