Sounds like a good way to spend a Saturday. What type of cars are you particularly interested in?
If you go here:
http://autoshow.msn.com/as/gallery.aspx?shw=autoshow2006&newguid=454854a43aa9409181c4401c820df336
I'm really partial to the Dodge Challenger and Chevrolet Camaro concept cars (under "More Photo Galleries").