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1934 Voisin C-25 Aerodyne
Like many of his peers on this list, designer Gabrielle Voisin started off making airplanes. After World War I, he turned to cars. Only 28 of the 1934 Voisin C-25 Aerodyne were made, one of which won Best in Show at the 2011 Pebble Beach Concours d’Elegance.