Hitler’s portrait is displayed in a Mercedes automobile showroom in Munich in 1935. From the early days of the Nazi movement, Hitler travelled in a large, open Mercedes. After Hitler came to power, Mercedes hoped to cash in on the long-standing association in the public mind between Hitler and the car company. The message is: Buy a Mercedes and you will be driving the Fuhrer’s car..
Bet they regretted that afterwards though . The Mercedes normally seen arriving or departing Berchtesgaden was a 3 Axled design. But the actual model I'm not sure of.
Well after a little digging on the net here's what I found. The 2 Axled model was a 1935 Mercedes Benz 770 K "Grosser" Limousine and the 3 Axled model was a specially armoured (weighing 4 tonnes !! and able to stop Machine Gun Bullets) Mercedes Benz G4 Wagen.