What is the rarest of all Chevys ever built to date and model along with submodel names?

I know L88 corvette, Yenko camaros, novas and chevelles and other specialty cars are super rare. But what is the absolute rarest of the rare chevys today?What is the rarest of all Chevys ever built to date and model along with submodel names?
rarest would be the 1st Chevy ever built.What is the rarest of all Chevys ever built to date and model along with submodel names?
The rarest Chevrolet production car is the1969 ZL-1 COPO Corvette. There are only two documented cars known to exist. Supposedly there is a third one, but it can't be documented. Next would be a tie between the '67 L-88 Corvette and the '70 Chevelle LS-6 Convertible, at 20 each. Other than that it would be one-off prototype's or concept cars.
1974 Spirit of America ImpalaWhat is the rarest of all Chevys ever built to date and model along with submodel names?
The 63 Corvette Grand Sport. To my knowledge only five were ever built.
You mean like the all aluminum engined 427 Camaro in 69 or just run of the mill accidently rare 72 Z28 (only around 2500 built, prob. around 1000 survive) because of some unforeseen strike that year?What is the rarest of all Chevys ever built to date and model along with submodel names?
a convertable pace car 67 camaro, and a convertable 69 camaro z28.

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