According to Kaemmer, iRacing retains the multi-body physics system of NASCAR Racing 2003 Season, as well as some of the track presentation and multi-user packet code, but everything else has been changed, or is completely new like the tire model and graphics engine. The iRacing service has been in development since then, using code from Papyrus' NASCAR Racing 2003 Season as a starting point. Henry after the demise of Papyrus Design Group, which Kaemmer had also co-founded. The company behind was established in Boston, Massachusetts in September 2004 by David Kaemmer and John W. 4.2.4 Hosted iRacing and other unofficial races.
#IRACING LICENSE CLASS PROMOTIONS DRIVERS#
![iracing license class promotions iracing license class promotions](https://s100.iracing.com/wp-content/uploads/2021/06/forum-highlight-large.jpg)
128MB Pixel Shader 2.0 (ATI 9700Pro or nVidia 6600 or better) 256 MB Pixel Shader 3.0 (ATI X1600 or nVidia 6800 GT/GS or better recommended) graphics adapter.Hyperthreaded Intel CPU, AMD Athlon 64 CPU, or any dual-core CPU.Windows XP, Windows Vista, or Windows 7.