For the 1939 World's Fair, Pontiac built a Deluxe Six bodied in Plexiglass. Part of the Previews of Progress pavilion in which General Motors' Futurama showed off what was to come in the world of autos, the 'invisible' Pontiac is credited as the first transparent car in America. And there were no shortcuts taken with its body: the Plexiglass form was fabricated by the company that brought the material to market in 1933, Rohm & Haas.
It's a car you can't really drive, but RM Auctions expects that a 1939 Pontiac with a Plexiglas body will go for anywhere between $275,000 to $475,000 at the St. John's auction that's being held as part of the Concours d'Elegance of America in Plymouth, MI this July. The Pontiac was built for the 1939-1940 New York World's Fair and appeared as part of General Motors' "Futurama" exhibit that showcased how the immediate pre-World War II imagination pictured 1960.