The evolution of an idea

ARGO: Ok, They say if an idea is good, it never really dies. And the evolution of an idea can take many forms. Sometimes they are done deliberately and sometimes they just seem to turn up in places you least expect them to be. In fasions, in design, and in engineering too. So to really appreciate this I have had this nagging question:
Have you ever looked at something that reminds you of a tank or arty? I see it all the time since I started playing WoT so I decieded to pick all your creative minds and see how many things you all can come up with. I will start off with the one that's been burning in my mind for months....
Here was an design idea then:

Here is a similar design today very reminiscent....And funny they are both German designs