I too have seen several 9Y plates in recent months. I don’t pay much attention to the rest of the letters.
As for interesting cars, this was a couple of days ago in San Francisco: I saw a car that was shaped like a Tesla but it seemed quite a bit smaller (narrower, anyway) than any others I am aware of, it was orange in color, and it appeared to have no rear window, just painted metal (apparently) where the rear window would be. I didn’t think that was legal, so I thought maybe it was somehow possible to see out from the inside. Unfortunately I was driving and didn’t have time to get a photo. It did have temporary plates on it, so maybe it’s some new model.
The Polestar 4 has no rear window. Instead, it has a rear view camera and a screen where the rear view mirror would be. Its styling is sort of Tesla-like, so that might be what you saw.
I spotted a Lincoln Mark LT yesterday evening, which was essentially a luxurious F150 pickup with a Lincoln grille and badging. Although they weren’t quite the sales flop the previous Lincoln Blackwood was, they still sold poorly, so you really don’t see many of them. Ford eventually learned the lesson that pickup buyers don’t want a pickup from a luxury brand.
This morning I saw and old Volvo 240 station wagon, an early 1980s one based on the four rectangular sealed beam headlights which Volvo used on US market models before composite headlights were allowed in the US. It was in very nice shape, either restored or very well maintained.
I’m sorry, this is off subject, but renting a car to visit my wifes family, I would rent a Lincoln Town car. They where all very penny pinching folks (would only have water at a resteraunt, and yeah, they are $$$$). I’d pick them up, and well, you could actually peel out in that beast.
Otherwise my wife and I are SUV drivers as a necessity. But it was kinda fun.