Im not sure whats realistic about a giant mechanical rhino with guns on it. That ultimate rhino design would have worked much better or at least something in that vein.
This Mech-Bot-Rhino design gave me a Christopher Nolan realistic feeling to it. I know it is not possible to build one, that can run and jump like the movie does. Like the Batman trilogy it is a different kind of interpretation. I would have no problem with an ultimate version, but I was referier to an original 710 lbs heavy Human beeing in a jumpsuit. As much as I was dissapointed from the movie itself, as much I want this monster.