Dec 20, 2006 Mercedes-Benz will be showing its new Concept Ocean Drive four-door convertible design study at the NAIAS in January. The one-off creation is built in the tradition of large luxury convertibles, and is based on the twelve-cylinder Mercedes-Benz S 600. One of the technical highlights of the car is an AIRSCARF neck-level heating system, which is featured on all four seats, allowing occupants to enjoy top-down motoring even in the colder months of the year. Few details have been released beyond the images, and the design brief that the car should be the world's most comfortable and elegant convertible.