Barrett-Jackson Concept Cars page1

There was a time when General Motors would simply put on its own car shows.

Between 1940 and 1956, the company put on touring "Motorama" shows in various cities across the country. (America first saw the Corvette at a Motorama show, for example.) GM also put on touring "Parade of Progress" shows. Those shows traveled around the country in a dozen huge buses like this one. Only three of those buses survive.

The side of the bus opens to reveal a huge retractable stage. The high cockpit of the bus was entered through a door in the front.