Just joined as I found all the info on here very interesting! I got my 135i last November and love it. Well except the exceptionally hard ride over bumps! Took me some tracking down to find one with the right options specified. See the pic if you would like.
I am currently looking to find out if Dunlop SP01 Run Flats are a better choice than the Bridgestone RE050As (particularly with respect to bumps & potholes) so will be browsing existing information.
Just got an egg on a front tyre after hitting a pothole and needing 2 new rears soon hence the tyre research.
For interest I fitted some Nokian WRG2 winter tyres on 17" rims last winter and they were fantastic - the double-takes I had from people when I was flying past them (relatively) was immense.