This magnificent machine is a 1938 Phantom Corsair. It was a prototype designed by Rust Heinz, of the Heinz ketchup family, and coachbuilder Maurice Schwartz. You can see it roll in the 1938 film The Young In Heart. Louis Block's The Flying Wombat page (flyingwombat.com, thanks Michael-Anne Rauback!), "Is This The Motor Car Of Tomorrow?" from Popular Science, November 1940 (Modern Mechanix), Phantom Corsair (Wikipedia)
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.