The GM Futurliners were a group of custom vehicles, styled in 1940s by Harley Earl for GM

The GM Futurliners were a group of custom vehicles, styled in 1940s by Harley Earl for General Motors and integral to company's Parade of Progress; a North American traveling exhibition promoting future cars and technologies. Having earlier used eight custom Streamliners from 1936-1940, GM sponsored the Parade of Progress and Futurliners from 1940-1941 and again from 1953-1956.

Originally manufactured for 1939 New York World's Fair, Futurliners were later featured in GM's Parade of Progress, a promotional caravan travelling a 150-stop route across United States and Canada. The Futurliners, along with 32 support vehicles, were driven by 50 college graduates, who also staffed the exhibitions along route. Typically arranged at each stop around a large tent and an information kiosk, each Futurliner featured a self-contained stage as well as a prominent deployable light tower, and each vehicle carried an exhibit featuring a single theme. The mobile exhibition covered such topics as jet engine technology, agriculture, traffic engineering, stereophonic sound, microwave ovens, television and other innovations. https://x.com/archeohistories/status/1908588928770113949