I bet its something more of a cross breed - just based on the "One truck" statement. Didn't Slayden or someone else "sponsored" by Traxxas once make a crawler out of a Revo that they had in their projects section??
On Edit:
Found it.
http://www.traxxas.com/support/kb_se...500&artlang=en
But after looking at it, its really nothing more than an extended wheelbase, wider offset rims, and lower gearing.
Losi 8T 1.0, Savage Flux - XL style, LST XXL, Muggy, 3.3 E-Revo Conversion and sitting outside 425hp, 831 Tq Dodge Ram Turbo Diesel. It SMOKES