One of the rarest cars Elvis Presley ever owned now sits in Volo, Illinois — a 1974 custom-built Cadillac DeVille Station Wagon, a model Cadillac never actually made. Elvis had it specially ordered through Madison Cadillac, where the sedan was converted into a full station wagon exactly the way he wanted it. He chose it for practical reasons too — it gave him more room to haul luggage and equipment between Graceland and the airport when he was touring nonstop. The car stands out instantly with i