Hi ChampionAudi,
As Phil says, top notch amateur racing. Essentially the SCCA takes all of its champions from each class, from every region, and throws them together at the end of the season to crown a national champ for each category. Its always a fun event with racing from sun up to sun down. All the races are short sprints, so the go off in quick order. Everything from small production sedans, to powerful single GT's and single seaters.
Huge entry of cars makes for a crowded paddock.
For many years it was held at Road Atlanta, then Mid-Ohio. As I understand it, the SCCA is looking to return it to the Buckeye state.
Its great fun, you'll enjoy it.
Fax