Cadillac announced they will display a pair of one-of-a-kind – well, none-of-a-kind to be more precise – models at the 2012 Pebble Beach Concours. These custom 1930s V16 Fletwood Caddies were belong to the great depression era and were never sold. The rarely seen cars have recently been auctioned off for big money. It’s probably the first time they will be shown open to the public.

The pair include a 1934 rumbleseat roadster model 5802 and a 1937 Phaeton model 5859, both part of Cadillac’s made-to-order Fletwood range. These body style were never selected by customers, but decades later coachbuilder Fran Roxas decided to build them using riginal blueprints of Cadillac designer John Hampshire. Both vehicles are powered by Cadillac’s legendary16-cylinder engine.

And both sold for rather remarkable sums of money. The Phaeton 5859 sold for $962,500 and the Roadster 5802 for $1,001,000.

“The Cadillac Phaeton 5859 and Roadster 5802 are literally unlike any other vehicle ever built,” said Clay Dean, Cadillac design director. “The Cadillac design team is still inspired by these two vehicles as we dream and conceive of future Cadillac entries.”