no matter how powerful and torquey that monster truck is, its just physically (there's something called laws of physics) not possible for it to pull off something like that (it just wouldn't gain any traction)...
and secondly, the car's motion somehow doesnt complement that of the little truck's..there's definitely something wrong there because it just doesn't look like as if the car is being hauled by that truck..
the verdict? its as fake as it could get.. the guy's phony demeanour is also a big give away..trying to be too serious..eh? LoL! sucka 
P.S. there are probably a couple of suckas sitting behind the car pushing it...the cameragirl never showed us that area..