[Qsilver7]

Another solution would be to find a huc centric wheel spacer (not hub centric rings...but SPACERS) that will reduces from 74.1mm to 72.56mm.

You'll need to figure out how thick of a spacer you'll require based on the rear wheel's offset specs...and you'll probably also need to buy extended wheel bolts to cover the width of the spacer.

There are automotive wheel vendors in North America that sell hubcentric wheel spacers that reduce from 74.1mm to 72.56mm...you just need to do a good google search or forum search. For example...try a google search using this phrase: hub centric wheel spacer 74.1mm to 72.56mm. The wheel/tire forums may be a source of information, too.

If you're not familiar with wheel spacers...remember that the thickness of the spacer is SUBTRACTED from the wheels offset. So if your rear wheel has a 40mm offset...and you use a 12mm spacer...the new offset using both the wheel & spacer would now be 28mm (not 52mm like some would assume). You would also need to buy new extended wheel bolts that were 12mm longer than your original bolts (using the previous example). BMW wheel bolts are usually between 26-28mm.so you would need new wheel bots that were 38mm-40mm.