Indeed, my MS paint tricks to convince people it was most definitely almost certainly a Brazilian tank didn't fool you, I spent a whole 3 minutes designing that flag
It's quite an interesting design, amphibious, and everything is inside the turret, crew, engine, the lot. The bulge is an outer shell of sorts to protect the actual turret inside.
Source: https://www.warhistoryonline.com/mil...sler-tv-8.html