Most of them are still in regional races, I am pretty certain of this. Guys who left SM, built a new car or had to be compliant, probably sold or pawned off what they had as legal.
The good news is that some of that stuff was edgy and probably blew up. If not it is starting to get old and tired.
Mike "MEATHEAD" Collins Founder - Partner MEATHEADRacing 240-476-1593