I think maybe i'll just stay with the sleeper vibe.
I was on a cruise in PA couple of summers ago with cars of all sorts. They had three versions of the one day excursion: sedate, touring, and sporty. Halfway through the sporty cruise, when we stopped for a quick rest, a guy in a real XK150 stopped to talk, and opened with: that's not a real 1600 is it? To which I could only reply: No it is not.