We are about ready to finalize our 2012 ED order of a 535i RWD M-Sport in AW & Oyster/Black Nappa. Other options include Cold Weather, Driver Assist, Premium, Technology, SAT, HUD, Side/Top Cameras, Rear sunshades. Should we add Active Steering? Our SA thinks it will likely mean new tires every 20k - true? My search on the forum indicates many think this would be an important option on an F10. I am concerned about the electronic steering feel on the 2012 we drove (a non M Sport or IAS model) and would like to get more than 20k out of the Michelin Pilot S/S I plan to put on the car stateside if equipped with the Goodyear LS2's. Your thoughts?