Yes I'm NCspotter on AG. As far as rarest cars go, that's a tough question to answer. I've seen a lot of special edition cars that are very limited production. Not sure what the rarest is, but the Gallardo Squadra Corse is definitely up there in terms of rarity (1 of 50). Also seen three AMG GT R Pros (1 of 125 in the US), a couple of LeMans Edition Bentleys (1 of 48 of each model line), a 918 Spyder, SF90 Stradale, two SLS AMG Black Series, a C63 AMG Black Series, two Aventador SVJs, two 765LTs, and then modified stuff like two Novitec Widebody Cullinans and a brand new Brabus G63.