Showroom Stock why not?

If you can get a few manufacturers behind your idea, or even a few local dealerships in the area that might be the start of something for your idea. Just sending an email or calling a division office and getting them to start the class might be hard, or impossible.
I see Jeff Teuton is in support of your idea. There is a start, he is a dealership owner, and plugged into Chrysler.
Another Idea, is to get some people together that will support the program you are putting forward to petition NHRA to start the class.Try to promote this locally and see what kind of turnout you get. If people show up and support the class you might have something there.