How many 1957 Chevy bel aires were produced?

There's no single answer to how many 1957 Chevrolet Bel Airs were produced. The reason is that "Bel Air" was a trim level, not a distinct model. Chevrolet produced several models (e.g., 150, 210, Bel Air) in various body styles (2-door hardtop, 4-door hardtop, convertible, etc.). To get a precise number, you'd need to specify the *body style* of the 1957 Bel Air you're interested in. Then, you'd need to consult production figures from Chevrolet's archives (which may not be readily accessible to the public).