The Austin Armored Car was first build starting about 1914. They were used by Britain and Russia in the First World War and some of the 1918 models were sent to Japan and used in Manchuria, some with changed chassis.
This looks like a really great kit. The video is a bit longer, but there are a lot of instructions and parts to go through, so it takes longer. There are some Aftermarket "weighted" wheels but these cars used solid rubber tires so weighted tires would not be correct.