I don't care for Toyotas any more than I care for sushi, but I give credit in that the run was pretty admirable up until the roll at the end. Crazy Aussies!
I've seen modified Jeeps, Blazers, and Ford Broncos run similar obstacle courses plus climb steep grades and ford deep man-made ravines. It requires a good deal of suspension travel (exceeding 20" in many cases) and a good driver.