In all our research on the see-through Pontiacs built for the 1939-1940 New York World's Fair, we never once came across any reference to a 1939 Plymouth with a clear acrylic top, but that's exactly what we see here in this photo.

The top appears to be in two pieces to cover the length of the Plymouth P8 Deluxe four-door convertible sedan, one of less than 400 such cars built that year. The tires are made of white rubber - the same as the see-through Pontiac - and the paint appears to be a pearlescent white - perhaps an attempt to mimic the ghostly properties of the Pontiac.

Plexiglas was patented in 1933 and production of the material began in 1936, so it's entirely possible that Plymouth had the idea first, but it's quite the coincidence that two cars with similar attributes appear from two different manufacturers at the same time.

Could this unique Plymouth have shown at the World's Fair along with the Pontiac, or was it possibly built for some other purpose?

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