The mind set involved in doing this...
Ever seen/tried one of those motorcycle contests where the goal is to ride the course as slowly as possible without falling over? (Not trials riding, pylons in a parking lot.) Somehow it's sort of like that.
More video-gamey than cardio-vasculary.
I suspect 133 isn't a "perfect" run. The car's absolute highest p&g FE is probably somewhere south of the blistering pace of 22 mph avg.