The 1958 Chevrolet Impala Convertible. Basically the same body as the contempora… The 1958 Chevrolet Impala Convertible. Basically the same body as the contemporary Cadillac with a few styling tweaks. Chevrolet Impala, 1958 Chevy Impala, Chevrolet Bel Air, Old American Cars, American Classic Cars, Cadillac, Austin Martin, Automobile, Bmw Classic Cars