Remember this class  

These were basically asphalt slingshots. Two cylinder fully suspended little race cars. Some might remember the   61 displayed at Motorsports 15 plus years ago. New England based class the never caught on. Here's a link to cars, chassis and parts. In Ohio for some reason. 
https://outerbanks.craigslist.org/pts/d/andover-mini-modified-race-cars-for-sale/7680586667.html