I have the same exact problem as some of you guys. I just got an 04 4.8is with 78k miles on it. Every morning the car would be tilted on the driver side like both left side tires are flat.

I had that clunking sound before as well, but I played around with the ride height one day then it went away. For some reason I'm not as confident with the handling like I should be. My BMW mechanic here in Houston (which is my Uncle) said that the airbags need to be calibrated.

As soon as I bring it to Momentum and have it diagnosed, I will let you guys know what the remedy is.

Hopefully it's something inexpensive.