The 5th generation, 1949-53 was a similar shape but slightly shorter and a larger windshield The unique to Buick Ventiports were introduced, 4 on the top Roadmaster and 3 on the other models. The vertical bars of the 1949 grille, grew in 1950 continuing down in front of the bumper in 1950 only, back to similar to 1949 in 1951, prominent bumper mounted lights in 52. 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 Available in Sedan, Coupe and Roadster Also upmarket Roadmaster Riviera available in sedan and hardtop