Steve,

That clunking sound could be anything. Check the following.

You said you changed the control arm bushings. Did you change both? With what? If it wasn't regular OE,Meyle, lemforder, Powerflex, then they may be shot.

Check the left and right wing supports. Its the "rod with two ball ends" attached to the strut and the sway bar link. If those haven't been replaced, that could be where the clunk is coming from.

Also when the bushings were replaced and everything was tightened, was it rechecked for torque under load?

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2011 E70 50i M Sport