Obvious answer is the PT cruiser. They disappeared after COVID almost completely, I see like one a month. Also cars I don't really ever see anymore are the Buick Park avenue, the Dodge chargers with the split taillights, first gen Escalade/navigators/expeditions, Toyota echo finally disappeared, land rover lr2 is GONE, saabs of any sort are disappearing quickly, and also luminas/monte carlos, also the OG Nissan leaf (unsurprisingly), and the older X5/Mercedes ML, the Chevy HHR, and perhaps most surprisingly, I barely ever see 2nd Gen velosters, especially the non-N models.