For 1950, Chevrolet came up with a revolutionary style that would set a pattern for decades. The Bel Air Hardtop was styled as a convertible with a non-detachable solid roof. Models like this had been around since the 1920s, including early Chevrolets, with no degree of success. But the newly revised idea, sweeping the GM line from Chevrolet to Cadillac, had finally found its era. First year production reached only 76,662 as buyers cautiously tested the revised concept. The car cost $1,741 and weighed 3,225 lb (1,463 kg). Front suspension was independent, named "knee-action".