>>7402285They dubbed this new machine Little Willie, in honor of one of its creators. But they quickly realized that the small size of the thing would not do, as it could hardly cross trenches. So instead, they decided to make a new chassis of their own, reusing the Holt design, but lenghtening it significantly. They also made this rhombus shape to make it easier to go over obstacles.
Tracks were a game-changer compared to wheels: not only could they allow the tank to cross difficult terrain, but they could also crush barbed wire, making a way for infantry following it.
The brits barely tested this new version, as they were in a hurry to deploy it on the field. This is what would become the Mark I.
(This is a Mark V btw, Mark I photos are hard to come by)
