BORING!
A few decent concept cars. 2 WRX's (sedans, no wagons seen) A bunch of Rousch Mustangs. 2 X-Types. 2 Sentra SE-R. The M3, if you like the color they had. Not a lot of time to look around, I had a wife at home that is 3 days past due on our first child.
Most liked: For some reason, the Chrysler 300 M Special Addition. Liked the Carbon Fiber dash accents instead of the wood. Also the "Kevlar" body skirts. Need to do some more research about that. They upped the engine from 250 hp to 255! Talk about ringing out the HP! Wife likes the car, but didn't like the wood when we test drove.
Worst of Show: Tie with Ford and Honda. Unless you want a gas guzzeling SUV or a 65 hp plain jane.
Coolest Concept: The GrandAm SR/T. Nice paint job, SC (neither are factory, just for show) But the seats should come like that.
Worst Concept: Any of the boxy, upright SUV looking thingies. VW Van meets Picasso failure.
If you get free tickets, go. If you are looking for new car, go. If you want to see cool cars, go to a dealer or look thru a magazine.