NASCAR SimRacing, abbreviated NSR, is a computer racing simulator developed by EA Tiburon and released on February 15, 2005, by EA Sports for Microsoft Windows. The game includes all of the 2004 NEXTEL Cup Series drivers (including Jeremy Mayfield, who was absent from NASCAR 2005: Chase for the Cup) and tracks except Pocono Raceway, which was also absent from NASCAR 2005: Chase for the Cup, due to failed negotiations with licensing. Content from the 2004 NASCAR Busch Series (branded as "NASCAR National Series" in-game due to alcohol advertising regulations) and Craftsman Truck Series (excluding manufacturer branding in the latter) are also included.