Executives wanted an entirely new car for 1957

Initially, General Motors executives wanted an entirely new car for 1957, but production delays necessitated the 1955–56 design for one more year. Ed Cole, chief engineer for Chevrolet, dictated a series of changes that significantly increased the cost of the car. These changes included a new dashboard, sealed cowl, and the relocation of air ducts to the headlight pods, which resulted in the distinctive chrome headlight that helped make the '57 Chevrolet a classic. Fourteen-inch wheels replaced the fifteen-inch wheels from previous years to give the car a lower stance, and a wide grille was used to give the car a wider look from the front. The now famous '57 Chevrolet tailfins were designed to duplicate the wide look in the rear. Bel Air models were given gold trim: the grille, front fender chevrons, hood, and trunk script were all rendered in anodized gold. The 1957 Chevrolets did not have an oil pressure gauge or a voltmeter. The base engine was an inline 6-cylinder called the Blue Flame Six. The engine was smoother running than the V-8. Carburetion came from a single one-barrel carburetor.