Base suspension. Not sport or air. None of the shocks seem to be busted, or at least they aren't leaking. Bounce test isn't conclusive to me. The ride seems fine. Driver's side seat shows no noticeable wear, so I think that would rule out a 400lb previous driver/owner. Anybody else have a similar issue?

 

I have seen that on many other cars, not just the LS430. Mine looks a little low sometimes and others it looks fine. Could be the amount of fuel in the tank or even an uneven surface.

 

a uneven surface will make it look off.my garage is level but my drive way is uneven,its very hard to tell until i park in the drive way.
find a level area and use a ruler and check the height on all four corners.