The 7th generation Buicks, 1957-58 got a lower body with an even more panoramic windshield equipped with reverse slanted pillars. For 1958 the Buick got bulkier chrome styling and now 4 headlights. For the first time since 1948 there were no distinguishing VentiPorts on the front fenders. Base model SWB Series 40; The Special, 1936-58 Base model LWB Series 50; The Super, 1939-58 Mid model SWB Series 60; The Century, 1936-58 Top model LWB Series 70; The Roadmaster, 1936-58 Also upmarket Roadmaster Riviera available in 2 and 4 door hardtop The Roadmaster was available in 2 and 4 door Hardtops or Convertible.