About three months ago, I went to Switzerland from Germany by car. And when I parked the car in Zürich, I realized that the car (BMW Coupe 3er) that parked beside my car had a non-EU registration plate. When I looked closely at that license plate, I realized the license plate was from Washington DC.
First, I think it was just a fake dummy license plate that was put on the Swiss car, but when I observed more on the bottom corner of windshield, it has a sticker that stated some kind of parking subscription member, and it also mentioned Washington DC.
And then I peeked through the driver windows; I saw it had MPH measurement for speed (EU doesn't use MPH; they use KM/h).
Was that really a person who drove a car to EU from USA? Not quite a important question, but I'm curious about it.