Car Racing Divisions/Categories: How many are there?

[Desmo]

Anybody know what all the different competitive car racing categories or divisions are or where you can find this info online? I know there must be plenty of different classes but I am curious to know the specs for each class. eg Formula 1, GT Cars, TransAm class, Lemans, etc. How many are there? What are the differences that make each class up?

[FRC Tom]

This might help you.
http://theracesite.com/

[Subdriver]

Start with www.scca.org

That will keep you busy for at least a while.

[1fastdog]

A good shot are the sanctioning bodies such as

www.fia.com

www.scca.com

etc.

[mgarfias]

http://www.usacracing.com/ too

nascar, arca, nasa, theres a LOT of different kinds of racing