AWE46M3

^^^^ I did this YEARS AGO with some old ice boots and Sure Grip H400s. IIRC I had to go to a hardware store to get bolts/screws long enough to fit through the boot/frame to be able to make them tight enough. Maybe it's easier to find longer, or lone enough, helmet screws now though. Also, IIRC, once I had it all together it worked fine. I only did it that one time; in the interest of time and for convenience, I've had every pair riveted since.

^^^^ I agree to some degree with that; I don't really like the E90/92/93 styling, but their performance is kinda nice :P An E60 M5's exhaust note makes me drool! That V10 sounds like a thing of beauty... iDrive is not that bad once you learn to use it, though a touch screen would be lot easier. I'm interested in seeing how that 555i will perform with the TTV8 - Im curious to see what kind of power will be extracted from that thing!

Ok, here my contribution to this thread; my last pair of conversions...