Tamiya 1/35 British WW1 MK 4 Tank with motor (30057)Storm the trenches with the 1 35 British WW1 MK4 Tank with motor from Tamiya About the MK 4 Tank During WWI, much of Western Europe was reduced to a massive battlefield criss crossed by a seemingly unending network of trenches. The original British Mk. I tank was developed to break the deadlock; the Mk. IV was a later model based on many of the same design principle, and of which around 1,000 were produced starting in March 1917. A "Male" variant was