Between **1940 and 1945**, civilian passenger vehicle production continued primarily in the United States, as most other nations had shifted focus to military vehicle manufacturing during World War II. During this time, automotive design saw a greater emphasis on horizontal styling, moving away from previous vertical elements, reflecting both aesthetic and aerodynamic advancements.
In **1946**, experiments with plastic-bodied vehicles demonstrated the potential for lighter and more aerodynamically refined designs. The flexibility of plastics encouraged the use of gentler curves, paving the way for more streamlined automotive styling in the following decades.
Between **1947 and 1948**, automotive design underwent major transformations, influenced by post-war industry reorganization. While some manufacturers continued refining pre-war 1939 designs, a broader shift toward a common global design language emerged.
By **1949**, the introduction of **curved windscreens and larger rear windows enhanced visibility, aesthetics, and aerodynamics, marking a step toward more modern styling.
