Therefore, it's difficult to say which cars were *invented* in the 1940s. The term "invention" implies a groundbreaking, entirely new concept. Rather, the 1940s saw:
* Post-war model introductions: While design and some engineering work might have begun before the war ended, many cars that are considered "1940s cars" were actually released to the public in the late 1940s as manufacturers restarted production. These were often updated versions of pre-war designs.
* Technological advancements incorporated into existing models: Some technological improvements, like advancements in engine design or materials, were incorporated into cars during this period, but these weren't necessarily the "invention" of a whole new car.
In short, there isn't a list of cars "invented" in the 1940s in the way a new lightbulb or transistor might be considered an invention. The automobile industry's focus shifted during the decade, and post-war models represented a continuation and refinement of pre-war developments.
