One downside to the open wheel type cars is that it limits your options for DE groups somewhat. It may be difficult to find a group in your area that will allow a small car like that since they can be so hard to see from inside a big car. We usually stick them in the advanced/open passing group because of that.
I think I've said it before... It is so nice to have a cheaper car in case of accidents. I
hit some trees in my Z33 in June but I was thankfully able to make Mid-Ohio in the 370 the next month while I was still looking for parts.