I have a set of 4 white 15" Mini wheels for sale.  I bought them from someone in CT last year when a friend of my daughter's moved here from FL with his 2003 Mini, but he had to return due to family illness.  I'm not sure when the bolt pattern changed, but these wheels will fit the Gen 1 R50, R53 bolt pattern (not sure about the Clubman, but I think so!)  15"wheels are a good size for snow tires.  Unfortunately, they won't fit my Countryman, or they'd be on it!  (All the wheels I had for my yellow Mini were holies!)  The wheels seem to be in pretty good shape.  $200 or best offer.