Spec miata sounds fun, but how about SpecE30?? www.spece30.com

They recently had a race (NASA-sanctioned) at VIR and had 12 cars racing- this on the 1 year anniversary of the start of this series!! Lots of folks are building cars right now, and they can be built for about the same cost as a Spec Miata- or even less!

Bret
(thinking about a SpecE30 winter project!!)