I kinda get the point, I am a nut in an old sube. large steel rail roof racks, no concern for aero, oversized tires that sound like a monster truck, and 80 in the fast lane when it is 80 as a stampede....high 20s mpg, to 50s (sticky second barrell)...
if by natural build a car is efficient, and powerful enough for its weight and chores... hypermiling techniques are less existent. I believe that is the writers point...and I believe I have read it already, but who cares...he just wants a 3 main boxer engine with awd and jacked up..