We ran our Subie at the first Chump Car event, 24 hours at PIR last halloween. It was great fun...our slow, yet super-reliable Subie got us 4th out of 40 or so cars! I had done 5 LeMons events prior to the Chump Car event, and the last couple of LeMons events I went to were getting pretty frustrating (compared to the first couple, which were great fun!). The Chump Car event was fun again, and they're getting some really good tracks and really good track time, so I'm glad to see some competition in the crap can racing arena. They treated everybody like rookie drivers, not like idiots looking to go drive in a circle. Full set of flags, rules enforced but not overboard, reasonable penalties, and geared to be enjoyable.
We planned on using the Subie for the Spokane and Portland events this year, especially Spokane...we really like TRUE 24 hour races, and we had a great time at the first Chump Car event! Unfortunately, scheduling just isn't working out this year, so we decided to put the Subie up for sale so somebody else can go have fun with it instead of just collecting rust in my driveway. It's still for sale, as a matter of fact (shameless plug!).
By the way, bluesideup, if your "one of two" comment is in regards to the west coast $2009, here's a tip: If you show up to the Chump Car race 24 hours after it started, you're not going to do very well in that event, either.
Seriously, if you want to do it, do it. If everybody sits on their thumbs waiting for somebody else to sign up, nobody will sign up. If Chump Car ends up falling apart for whatever reason, the same car can run LeMons, rallycross, autocross, etc. Build a car, beat the piss out of it, enjoy. Rinse and repeat as necessary.
Bryce