Since the very first Pebble Beach Concours d’Elegance back in 1950, just 74 cars have taken home the coveted Best of Show award. One of the victors is this exquisite 1937 Delage D8-120 S Aerodynamic Coupe, with flowing bodywork by Parisian coachbuilder Marcel Pourtout. It was the worthy recipient of Pebble’s top prize in 2005.

For Best in Show winners to come on to the open market is almost unheard of. But next month, this streamline-bodied coupe will be one of the stars of the RM Sotheby’s Monterey Auction, held at the Monterey Conference Center in Northern California from August 13 through 15.

The 1937 Delage D8-120 S Aerodynamic Coupe set to be auctioned next month through RM Sotheby’s.

Darin Schnabel, courtesy of RM Sotheby’s

“This is nothing less than a coachbuilt masterpiece, and one of the most important French Art Deco cars ever created,” Harvey Stanley, director of private sales for RM Sotheby’s, tells Robb Report. Does being a Pebble Beach Best of Show add to the car’s collectability? Says Stanley: “One thousand percent. It is the ultimate accolade for a car, adding immeasurably to its provenance.”