1993 Buick Century Owner's Manual - Page 8

In World War II, Buick built aircraft engines, tanks and other military hardware. This post-war period brought great styling and engineering changes which resulted in increased sales. The torque converter automatic transmission, Dynaflow, was introduced in the1948 Roadmaster. Buick's famous "portholes" came along in 1949. A high-compression V-8 engine was introduced in 1953. And Buick's famous vertical pillar "toothy" grille (introduced in 1942), became more massivein the postwar era. I953 Skylark 1949 Roadmaster 6