Summary

m706 Commando armored car manufactured by cadillac-gage
included models are a hull, a gun turret and a t50 version
( I didn't actually print the t50_turret version though )

modeled in blender 2.79b to full dimensions
scaled to 1/100th for the .stl file
scale down to 35% in slicer for micro-armor

D6 is 15mm for reference