For me, it would be a Eunos Cosmo. I saw one of these at a local cars show when I lived in Alabama about 6-7 years ago. It was in a town with less than 5k people, in a show with under 1000 cars, almost all of which were muscle cars.

What cars have you seen where you least expect it? This car show is in the summer by the way, just to change the subject of winter.