It's chop for sure guys,
1- As SCOTT27 said, the mirror caps are the ones from the standard E92.
2- The contour of the windows are in chrome. All standard M cars have the
window sides in black (unless it's ordered otherwise).
3- The M3 concept has yet to be presented, so I doubt any magazine have
gotten their hands on it.
4- Notice carefully that in none of the images do we see what the wheels look
like. Thats simply because very few people have an exact idea of the
final wheel design (that was the only clever thing about these pics
actually)
5- Another thing is that the plates on the over photo and those on the inside
don't match! (MVZ 4329 on the cover and YL 06 NCY on the other cars.
6- If you look closely at the pics, the car constantly switches from RHD to LHD!!

This is really bad for Car magazine, makes me think: Tabloid car trash, Good effort nonetheless.