Art immitates life and life immitates art
As strange as Girls und Panzer's core concept of an interscholastic tank battle sport may be, the anime has a remarkable grasp on reality. Not only does it have a military otaku's with obsession mech details, beyond all the references to the real convenience store chain SunKus, a lot of real geography is pulled into the anime.
From the real locations in Ooarai town (in Ibaraki prefecture)
for the flip side, episode 5 inspired some life immitating art
The background character who is this series object of fan obession