Though it's debatable as to its level of accuracy to the real vehicles, the performance of each vehicle is generally close enough to real that the show is essentially normal-ville with steel treads and high-caliber guns. It's not about anime-crazy tanks either: each of the featured vehicles is a CGI/cellshade rendering of a WWII-era war machine.
Due to the inclusion of said tanks this show has reached a unprecedented cult-fan following. Featuring the typical same-faced moe school girls and high-school setting, it might be mistakable for any other anime were it not for the addition of MOTHERFUCKING TANKS.
Girls und Panzer is a 2012 anime released by ACTAS studios as part of Japan's Prime Minister Shinzō Abe's propaganda campaign to make the JSDF seem sexy to young losers.