A bit ahead on things, but wondering if some parts as suspension and exhausts could be the same as those for the X3?
I think springs (H&R) could be the same for the 35d as well as rear exhaust. Off course body parts are different, maybe grilles are the same?
Wheels should have the same offset as well, no?
Here some of my plans/wishes:
X4 35d MR
Hartge performance upgrade 362 PS and 730 Nm
Supersprint or Hartge quad exhaust (no silencers - would love the Alpina/Akra exhaust!)
H&R sport springs -35mm
21" wheels, HRE TR45 is pretty good contender although M Perf looks good as well.
here a quick render of my perfect DD
Opinions, ideas are welcome!