"[5] Consumer demand from farmers and businesses for stripped-down Model T versions prompted Henry Ford to market vehicles that independent builders could supply cabs and cargo enclosures according to users' needs.
[6] During World War I the U.S. Army ordered 20,000 Dodge half-ton chassis sets for use as cargo trucks and ambulances that were then marketed after the war as the "Screenside Commercial Car"—a pickup with a roof and roll-up side covers or a fully enclosed cargo-bed.
[7][8] However, both of these were car platform-based models (Chrysler PL and GM Delta platforms respectively), not built on a pickup truck chassis.
Canopy express vehicles have open display areas behind the driver's seat commonly used for peddling vegetables and fruit, but also used for other kinds of deliveries that require easy access, such as newspapers and radio equipment.
As the United States became more suburbanized after World War II, sales of canopy express vehicles declined.