Japanese Type 91 So-Mo armoured car

Also referred to as the Type 91 broad-gauge railroad tractor, the So-Mo has the unusual distinction of being able to quickly switch from road to rail. The So-Mo could achieve speeds of around 25 miles per hour on roads and almost twice that on railroads. Fielded by both the Imperial Japanese Army and the SNLF during World War II, the six-wheel-drive So-Mo also served in the 1937 Japanese invasion of China. The vehicle did not have integral weapons, but the crew often carried a 7.7mm machine gun that was fired through the observation ports in the turret.

Despite its light LMG armament, the So-Mo provides a relatively inexpensive armoured car for a Japanese force, which has the dual benefit of being able to transport six infantrymen across the battlefield. It is particularly useful if the battlefield contains any railroads!