well I have read pages and pages of discussion on the difficulty in getting a new car classed competitively. But no need to bring that pile back up...
I think having new cars competing against older cars would be pretty cool. What is the problem with that? Why would anyone want to phase out older cars?
SCCA should class the cars, not wait for some 19 yr old, who doesnt know anything about the club, to request a new car for classification.
Start with the most popular ones out there and make it so.

When looking at the other ITB cars in the GCR it took me about 30 minutes to figure out that the swift would be competitive. This isnt rocket science.
I mean, the SCCA doesnt have to buy and build the car. They just have to write it down in the GCR as eligible in whichever class.