The Mercedes-Benz 600 was a series of ultra luxury sedans and limousines produced between 1963 and 1981. Also known as the W100, the cars were offered as either short or long wheelbase variants. The standard 600 Sedan used the short wheelbase, while the 600 Four-Door Pullman, 600 Six-Door Pullman and 600 Six-Door Pullman Landaulet, used the long wheelbase. All Mercedes 600 cars were fitted with the company's M100 6.3L V8 engine.