Suspension gremlins

[Diesel Spectre]

I’ve exhausted my ability and need to be “pointed “ in a worthwhile direction.
I’ve been chasing suspension/ steering gremlins for years. I’d replace the next likely culprit and…. Nothing changed. I’m grasping at straws here so what say the conglomerate of knowledge and experience?
2010 e70. Always feels like I’m driving in a hurricane even when it’s not windy. Started by replacing the front lower control arms and torsion struts. No change. Time went by and I replaced the rear ball joints and integral links. Still nope. More time went by and I had enough so I replaced tires…. Nada. Got tired of it since it started making a banging noise any time I go over rough road. At this point, I decide to do the front tension strut bushing and replace them with turner monoballs. Same story. Last week I ordered new rear ball joints & integral links, and new front upper & lower control arms. Got into it today and I can’t find anything wrong with those parts.
This whole time, I would jack up the x5, shake the wheels up & down and left & right and find no play. Move everything around with a pry bar and get slight movement from rubber bushes but nothing out of the ordinary.
I’m on 18s and its 100% not predictable regardless of road condition so it’s not trammeling.
The shocks and struts are likely original but since it’s not a macphearson strut, it shouldn’t cause this issue.
Anyone have any ideas? I’m open to any / all suggestions.