I would just call it crawler scale SS. A lot of them are running 15"+- wheelbases so they don't flip over backwards.
Nice looking BTDB, looks wicked outlaw moonshine runner, LOL, with that body. Nice touch on the jerry can too... Probably leaving a trail of scale beer cans behind too!!!
A couple of years ago there was a 1/1 4x/crawler in a magazine with a 40 Ford or Willies body(I can't remember) on it... waaay cool stuff.
Retro hot rod 4x4 crawler meat hook.
I can't wait to get my crawler project going, digging hard for $$$...