wheels are 20" with 10.5 on rear and 9.5 front - Im just looking at spacers for a wider stance and looks - have ordered arches from BMW so will wait for them before I decide on spacer width. Not sure if it is illegal but I do know the insurance companies dont like it. Have seen a similar vehicle with the same wheels and arches fitted but without spacers it looks a bit odd. Have checked out a few of the spacer suppliers on ebay etc and although they are reasonably expensive and also quite a bit of price difference between them its much better than a quote I got from a local suspension business to supply the same thing. Will post some pics when I complete the project.
Cheers