I took mine to another car show yesterday, in Central Oregon - Redmond. Tons of questions... easily the busiest, most interest in my car, over all the rest... yet it is a show for classics. 200 cars there, and a lot of them are in amazing condition. Many of them six figure cars. I've come to expect that while the interest is there, people vote for the restoration projects, history, and other labors of love - vs. showing up with a new car.
Btw, the show directors liked the car so much, the moved me from back row to right up front. Easily the best position of the show. And as a result, my brother had to get me water, and a hot dog, but I still barely had time to eat between answering questions. Some did think I was a sales person, especially because of my knowledge... had to make sure to explain it was my personal car.
The sign is invaluable, btw... people really stop to read it, and you can just here so many go, "oh I didn't know that!" This crowd is really into fast cars, and so many of them were really blown away by the stats.
Edit: Brian, with the red 43 Willys dragster (in the background), won three awards; Mayor's choice, best paint job, and best muscle car... 1362 - BHP!