ppro - I know what you mean.
I pulled in to AutoZone a month or so ago to pick up some Mobil 1 on sale, etc. There was apparently a car show in the parking lot, but there were only about 5 cars. I parked 5 or so spaces away from them as I did not want to act like I was part of the group and offend anyone.
There was an AMC Javelin, 70 Cutlass, 50 Chevy, 72 Cutlass, and something else that I can not recall at the moment.
Anyway, I parked, and walked into the store and was glared at. After I came out, same thing. I wandered over to look at the cars, and the glares continued. Not one person said hello or anything. It was like they hated me and the car I drove up in (SRT6).
I did notice that when I pulled out, the whole crew was watching. Weird.

It is not jealousy IMO. I think most folks who go to car shows want to see older cars. New(er) Vettes are probably okay since they are Vettes .
I just think that there is a hefty disdain for our cars. Lots of haters.
I don't care though, I always cheer for the underdog .