In history, the most prolific user of the Christie suspension was the Soviet Union, and the famous BT series of tanks were users of this system. Just like the Soviet Red Army of the time, the Wehrmacht also tried to implement the dual-wheel and track system in light armored vehicles, hoping to build an excellent reconnaissance combat vehicle in the 15~20-ton range, but they went further than the Soviets or you could say took a more unconventional path in their technology tree.