Well, that was an interesting hour wasted... I bought a set of BMW alloys with winter tyres off ebay that someone had been using on their E90 320d. They're 17", original BMW, and I thought they'd fit.
They don't. They don't clear the brakes on my 330i E91. This is rather annoying!
Fronts are 205/50R17s on BMW 17x7.5 wheels
Rears are 225/45R17s on BMW 17x7.5 wheels
Managed to get the rears swapped over then started on the front. Of course after making a small adaptor for the jacking points that BMW helpfully give us...
Looks like I need another set of alloys
that will fit these tyres. Any suggestions?