I have a friend that has a very nice 1936 Pontiac Coupe, there is one show that he won't go to because it is participant judged, he knows that the locals have several cars in the show and all of the locals vote for their cars. I know of other groups of guys that go together to car shows and do the same thing. I know that he goes to other shows and seems to enjoy them. Personally the nice part about having a below average car is great, since I know I have no chance to get a trophy I only do a cursory clean up (as a matter of fact I did a couple of shows just a week apart, didn't even clean the bugs off of the windshield) drive in park and enjoy the day. Just my observation.