I was in a J95 - in some markets called the Prado. (Basically less rugged than the 70 series, but still at the fairly utilitarian end of the range - a close relative of the J80 - beam axle at the rear, independent up front, lockers rear¢er.)
It is more a matter of physics than utilitarian/luxury, I suspect - 4x4s ride tall (my roof rack is 6'8" above ground), so to behave properly with a significant load on the roof, you'd need lots of mass to keep the centre of gravity low while also requiring suspension stiff enough to be unusable to keep the roll in check.
It is more a matter of physics than utilitarian/luxury, I suspect - 4x4s ride tall (my roof rack is 6'8" above ground), so to behave properly with a significant load on the roof, you'd need lots of mass to keep the centre of gravity low while also requiring suspension stiff enough to be unusable to keep the roll in check.