What the Internet has taught me: People do strange things, and sometimes these strange things involve a car, and in this instance, sometimes the strange thing done to the car renders said car unrecognizable. Also, people really like tanks. Check out the gallery on CrunchPost for more weird auto-mods, hand-built by people with loads of free time.
[caption id="attachment_46949" align="aligncenter" width="500" caption="Because clowns aren't scary enough already."][/caption]