Im not an expert but......

One of the funniest things I've seen was when I had my Duster at a cruise in type car show on the street In New Smyrna Beach. I drove my car on the street then, it was plain white and ran 11.70's just like I drove it. I was parked next to a black 67,68,69 Camaro and there was it's nearly identical twin across the street from us. I put a time slip on the dash, removed the hood and went and sat on a bus stop bench across the street just to see what kind of reaction the car got.

A couple, came along, both with cameras. They spent 10 minutes going over my car, looking at the engine, looking underneath, inside just studied it pretty hard for that time, then they stood up, turned around, snapped pictures of the Camaro across the street and the one next to my car then walked away.