I got my M440 a couple of months ago. I've started with the mods so I thought I would share. Here are the details.
Color: Dravit Grey/Tacora Red
Options: Shadowline, Executive, Drivers Assistance Pro and Parking Assistance Packages, Adaptive M Suspension, Power Tailgate, Drive Recorder, wireless charging and Harman Kardon stereo
Mods: AC Schnitzer lowering springs (-1.0"), BMW M Performance 795M Bi-Color 20" wheels, IND Painted front reflectors, Burger Tuning Intake and spacers (13mm front and 15mm rear), 30% window tint, BimmerCode Custom Coding
I love the Schnitzer springs. I think it is the perfect amount of lowering for a street car (about -1.0") and the ride feels stock.