Dude, there's been road racing at ACC for at least 3 years now.
I'll be there next weekend with NASA, instructing and leading an HPDE group. You should come on down if you want to check it out, it is family weekend so bring the kids. If you want more info take a look at:
http://www.nasamidwest.com/
There will be at least two minis on the track that I know of, one of them mine.