LAST EDITED ON Aug-23-14 AT 03:01 AM (EDT)
 
Oh, the Ratte is easy-- disqualify it for being a mobile coastal defence battery rather than a tank.

Alternately, since they'd have to be built using materials available at the time, it simply gets disqualified for being unable to move due to the suspension crapping out.

Now, the gas turbine powered Panther, on the other hand, would be pretty interesting...