M25 Dragon Wagon
This American unarmored transport combination, known as the Dragon Wagon, consists of a truck and trailer. Between 1943 and 1945, a total of 1,372 Dragon Wagons were produced. This unarmored combination weighed "only" 30 tons and could carry a load (usually a tank) of a further 40 tons. Because the tractor was made unarmoured, it was possible to save on armored steel, which was more needed elsewhere. The actual recovery of tanks often did not take place in the heat of battle and so armor was in many cases unnecessary.