As an official Microsoft evangelist Robert Scoble spends his life around cool stuff and interesting people. A day with Target Racing introduced him to some of the technology that makes race cars go fast but which fans almost never see. His video will be available on Microsoft's Channel 9 in "a couple of weeks."
"The team wouldn’t let me shoot three things: their suspension systems, their engine and gas line systems, and their algorithms."
I'll link to the video when it is posted.
Microsoft has a May 2003 promotional article discussing how their technology is used by Target Chip Ganassi Racing.
Update (January 14, 2006): The videos (three!) are now available here.