Yeah, that image meant to be a joke.
Any Sov tank at that time capable of holding up a German armoured division would have been a KV-1
![](http://battletanks.com/images/KV-1.jpg)
There was a KV-2, which is probably where the makers of the image got the idea,
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Kv-2_in_the_Moscow_museum_of_armed_forces.jpg/300px-Kv-2_in_the_Moscow_museum_of_armed_forces.jpg)
but that was a special purpose tank for use against fixed fortifications, carrying a slow firing 152mm howitzer. Against armour, it would have been quickly overwhelmed.
And the supposed fates of the "KV-6"s are exactly what you might guess from looking at the picture.