Years ago, after 57 Chevies became the iconic representation of the 50s, and got REAL popular, I read about how there were far more 57 Chevies around than could be accounted for by official production.
It turns out that there were:
A dedicated group of ex-Chevrolet stylists and franchised used-car salesmen continued to turn out close to 200,000 1957 Chevrolets, focusing on the 2-door Bel-Air model, between the years 1957 and 1967, in a small auto assembly plant located outside Jacksonville, Ill.
Years ago, after 57 Chevies became the iconic representation of the 50s, and got REAL popular, I read about how there were far more 57 Chevies around than could be accounted for by official production.
It turns out that there were:
https://www.snopes.com/fact-check/chevy-duty/