1993 Buick Regal Owner's Manual - Page 8

In World War 11, 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 the 1948 Roadmaster. Buick's famous "portholes" came along in A high-compression V-8engine was introduced in 1953. And Buick's famous vertical pillar "toothy" grille (introduced in 1942),became more massive in the post-war era. 1949. I953 Skylark I949 Roadmaster 6