Well... The X3 can only get the electronics from the E46 platform. So I guess it is limited technologically.

With that said, BMW has taken many of the comments generated in the 90's & early 00's about it being technically behind, which is why I think BMW went overboard with the current new-gen of BMW cars (the barrage of iDrive, active steering, HUD, etc...).

Its damn if you do, damn if you don't. No-one seems to like either approach that BMW has taken...