To be honest the only CART race I've ever been to was at Mid-Ohio last year. I really like just about any race at Mid-Ohio because it's so easy to get up close and personal with the race. You can walk around to every part of the track and watch the dynamics of the cars through the corners at every corner of the track. You can get a paddock pass and sit about three feet from the cars as they work on them, if not closer. I was in the paddock on the ‘catwalk’ above the garages for the beginning of the ALMS race this year, way cool. graemlins/thumb.gif I'm not sure I'd like any race where I have to sit in a Grand-Stand and I couldn't walk around to just about every part of the track as the race is happening. I can say the fans at the Mid-Ohio CART race last year were not boring, maybe not crazy, but not boring.
I really wanted to get to the Super Bike weekend this last year but I had two prior commitments on that Saturday which sort of made it difficult to get up there. I also missed this and the SCCA Run Offs this last year, I will not miss the Run Offs this year.
I will never go to a NASCAR race, just as I will never go to an IRL race.