IROC is defunct,yes?
http://en.wikipedia.org/wiki/International_Race_of_Champions"In 2007, IROC could not find a sponsor and postponed the first two races at Daytona and Texas.[1] IROC went on hiatus in 2007 hoping to return with a sponsor in 2008. In March 2008, IROC auctioned off its tools, equipment, cars, and memorabilia, and went out of business"