This transparent Pontiac sedan was on of the GM's displays in it's pavilion at the 1939 World's Fair. Sometimes referred to as the "See-Through" Pontiac, this unique running car was one of two built in a joint venture between Pontiac and Rohm and Hass. The transparent bodies were made of clear acrylic. When one of the cars was sold in 2011, the transparent body was in remarkably good condition.