Despite 1939 being a dangerous time both economically and politically, as World War II loomed ominously on the horizon, the World’s Fair was as popular as ever that year. Just one of several strange and unusual products made especially for the fair was this Pontiac Deluxe Six “Ghost Car.” Built almost completely out of plexiglass, the car is expectedly see-through and participated in General Motors’ “Futurama” show in the Previews of Progress pavilion, an appropriately named exhibition space designed to hint at what was to come in the future of automobiles and consumer products. Pontiac didn’t cut any corners with their “Ghost,” as the plexiglass used in the car was sourced from none other than Rohm & Haas, the company that invented the material in 1933. Costing GM around $25,000 to build in 1939, this obscure World’s Fair spectacle was just sold at auction in Michigan for $308,000.