Here's a bit of info. Some of it is outdated such as the USAC logo appearing sporadically on the site, etc...
There is contact info if you feel motivated to call or email.
The game is pretty cool also, if you have the program downloaded, but the old style bodywork still exists in the game. (IRacing).
David.
http://www.goldcrownchampionship.com/
http://www.iracing.com/cars-and-trac...ver-crown-car/