Are the Ms closer in feel to each other than the non-M versions?

[Pex5]

I have an 09' X5 4.8 sport w/20s. Its a good car, but the X6 5.0 is another car altogether. The X6 5.0's low end turbo torque along with the torque vectoring rear diff provides a another level of performance. It makes the X6 feel very light and endows it with car-like handling. I have a 550 sport and the X6 5.0 drives much more like my car than our X5 does.

I've test driven the X6M and was very impressed. Mostly because it rides as nice, if not a bit better than the X6 5.0. M suspension gurus know how to increase grip without decreasing comfort.

So here's my question. Both the X5M and X6M have the trick electronic rear diff. Both have the same engine, and both weight about the same. Does the X5M now handle like the X6M?

DRP