I think you will find that this is a lot more than just some minor modifications to the venerable old Russ, but an entirely new kit. Check out all the hull and base turret differences, along with that new track guides system on the interior of the sides for ease of assembly. The all new sponson weapons, and Demolisher/Punisher/Executioner bits are just extra coolness on top!
~Something tells me the basic Russ is going to be overhauled to use this kit in due time. Enjoy guys. This is due out in August