The Mercedes-Benz 600 was a large luxury automobile offered in several variants worldwide. A few of the limousines were made with a convertible top over the rear passenger compartment and were called landaulets. This was mainly intended for official use, by the Pope, or by the German government.
The 600 was so heavy that the largest engine of Mercedes at that time, the 6-cylinder 300, was inadequate. Instead a new engine with more than twice the capacity was developed to
move the vehicle and its hydraulically powered amenities, the 6.3 L V8 "M100" engine with single overhead camshafts (SOHC), and Bosch mechanical fuel injection.
The 600 featured many luxury features, including a complex hydraulic 150-bar (2,176 psi) pressure system that powered everything from the windows and seats to the automatically closing doors, sun-roof, and boot lid. Adjustable air suspension gave the car a good ride quality and handling over any road surface. Only 59 units of the Landaulet were produced.(wikipedia)
This Mercedes-Benz 600 is the first of a limited edition of 59 cars built with landaulet body by the factory on the long wheelbase chassis of Pullman, 49 were left-hand drive and right-hand drive 10. (bonhams.com)
(Photos from bonhams.com)