Originally Posted by marklemac
ie the wheel physically won't go on without hitting the suspension ? (so I'm clear in my mind )
Possibly. Your 1 series fronts will be either 7.5" or 8", either way probably a fairly high offset (in the region of 40 to 45 at a guess).
The 216 was available in standard 3 series staggered sizes, i.e. 8" ET34 front and 8.5" ET37 rear.
So if your 1 series front is an 8" with an ET of 45, then it'll be 11mm closer to the suspension strut than the 8" ET34 wheel.
If you put your hand on the top of your front tyre, and then reach back a bit further, how much clearance is there between the tyre shoulder and the suspension strut?
Or go have a look at the 1 series fronts and tell me what width and offset they are (offset will be an IS number, something like 8J x 18 EH2 IS40).