I honestly have no clue, but I guess this might work... get someone to climb into the trunk and see how the suspension reacts?

As I understand it, they should stiffen to keep the car fairly level even with a large unbalanced weight, if you don't have em, the back should sag pretty well (try two people if the first is small :P)


Actually, this won't work as long as the car's rear suspension remains static. Nivomats use some funky valving such that the car's suspension travel raises and lowers the car to the proper height. I have no idea how, but that's the way it works.

On my V70R (w/Nivomats), the suspension doesn't level out until after I've driven over a few bumps. It doesn't seem to level out just by bouncing the rear end, though; some kind of fore/aft motion seems necessary.

-cj