Originally Posted by sean10mm
E90 xDrive cars only came with the base suspension. F30 xDrive cars can get the Adaptive M suspension. So when it comes to xDrives the F30 is the better performance choice, not the antiquated E90.
Again - drive both - then decide. I haven't driven an xDrive with adaptive suspension, and if you have, you may very well be right. Don't see how that would improve the lifeless steering feel (IMO) though.
Anyway, this is not an E90 v/s F30 post - just everyone making their suggestions to the OP, before we had a particularly smartass nut jump in.