I would like to show you my latest project - T-55 Tank.
Improving my final scene will take much longer than I expected.
Wip thread: http://blenderartists.org/forum/showthread.php?346512-T-55-Tank
I used mostly these two sites:
Now I'm working on IS-2 heavy tank and polish TKS. I will start a wip thread on Blender Artist soon, so stay tuned.
Where did you find good enough reference material for the tank? It looks insanely good. Also will you do more tanks?