Originally Posted by GregW / Oregon
Yes, I'd be interested in a space-saver option for trips. I carry a plug kit as another option for puncture repair, but that won't cure a major failure.
The space saver wheel from the X6 (part number 36-11-6-768-861) mounted with a 125/70-18 space saver tire will fit on both the front and rear of the E9x M3 without a spacer. The only problem is that the center bore of the X6 wheel is a bit larger than the E9x M3's hub so you have to be very careful to center the wheel on the hub when tightening the lugs. I'd like to find an adapter to properly center the wheel on the hub but without an adapter this setp works fine at least at moderate speeds and for relatively short distances.