Easy to print sdkfz 231 8-Rad armored car, 1/100 scale, will want some greebling if scaled up. Some details have been changed for looks/ printability. (the photograph is crap, but I'm too lazy to re-do it)
Scale by 1.56 for gaslands / hotwheels / 1/64
Scale by 1.786 for 28mm / 1/56
Video of it being designed: https://youtu.be/bNKWaTqvLqU