I'm looking to make my new-to-me '06 3.0i X5 look a little tougher and less like a grocery-getter. I realize some will cringe at my suggestions here, but I like to mess around in photoshop just see what certain changes would look like and would be happy to do the same for your X (time-permitting).
Using this Xoutposter's X5 (obviously not a 3.0) as inspiration....
I started with this. I already had plasti-dipped the fog light trim, kidney surround, and 3.0i and X5 emblems.
I then photoshopped in black or gunmetal wheels, eyebrows, black door handles, and a "titanium" lower grille mesh to add some contrast to the all-black 3.0 bumper. I think I prefer the body color handles and am on the fence about the eyebrows. Okay, maybe it still looks like a grocery-getter, but what do you think?