A few of the large Mercedes-Benz models in the Technik Museum Sinsheim are technological masterpieces that the Mercedes-Benz Museum could never display, as these cars were delivered to the German government for used by top Third Reich officials. Only 10 armor-plated 770K limousines were made of which only 3 survived. Two are on display in this museum. This 1943 Mercedes-Benz 770K was used by amongst others Heinrich Himmler. These 770KÂ cars were powered by a straight 8-cylinder 7,600 cc compressor engine good for 230 PS and a top speed of 140 km/h, which was limited to 80 km/h as the weight was too much for the tires.Â