NEW YORK.- A 1941 Cadillac custom limousine "The Duchess", built for the Duke and Duchess of Windsor (estimated 500,000-800,000 USD) is on display during a preview of the "Art of Automobile" auction at Sotheby's in New York, November 18, 2013 in New York. The auction, which will feature 34 of the world's rarest vehicles, is scheduled to take place on November 21, 2013. AFP PHOTO/Emmanuel Dunand