100cc, the cost was $25 US. Well worth it, in my opinion. Unfortunately, I think August 12 was the last day for these tours this year. They might offer them again next year -- anyone interested should watch the IMS web site (
http://www.brickyard.com) next spring for news about the tours.
The guide for the tour I took is the beverage manager at the track -- he's in charge of supplying all the suites with beverages. Seemed like a strange choice for a tour guide, but he was actually rather knowledgeable. He said he never gets to see any of the races because he's always busy working during the event. He said he found out who won last week's Brickyard 400 by reading the newspaper! I guess working at the track isn't always the glamorous job we sometimes imagine!
To give you some idea of the security when the F1 circus is there, the guide said he had to be cleared by five different guards at five different checkpoints when one of the teams asked him to come to their suite to replenish their beverage supplies last year.
brett_sequeira: made you look!