Putting all conjecture and personal opinions aside.
I want to know conclusively, can OEM Aluminium running boards be fitted to a 2013 E70 X5 with an M sport pack?
If so, are there any fitting issues.

Half the community agree and the other half disagree. Attached is a picture of what looks like an M Sport with running boards.
BMW say no due to the large guards, however, I beleive this may only be their position in order to protect the brand.
Only interested in comments from anyone with real knowledge and experience.

Cheers