+ 1 Silvertu....M5 front bar with a GT rear sway (just which one...16 or 18mm I'm not sure yet)
For BigDeep1, consider keeping the sways on your list. If and when you do it, the immediate change you'll notice will be that every time you deviate from a straight line, from beginning and exiting a turn, lane change, even pulling out of a parking spot, will be different, in a good way. Sharper turn in, quicker response with out excessive dipping/rolling. No, it won't give us back road feel lack a sporty rack-and pinion set up like in past BMWs but I believe it'll be the most handling we can get considering the F10 platform and the electronic steering assist.