Depending on how you or your wife personally drive the vehicle and the road conditions here are my thoughts on suspension options from reducing roll angle to ride comfort:
Best handling in regards to significant reduction in roll angle:
1. Dynamic Handling Package (only available on M50i in USA) - includes Active Roll Stabilization, M rear differential, Adaptive M Professional
2. Adaptive M Suspension
3. Air Suspension in Sport level
Firm, sporty ride
1. Dynamic Handling Package
2. Adaptive M Suspension
3. Air Suspension in Sport level
Daily comfortable ride to long distance cruising
1. Air Suspension in Normal level
2. Air Suspension in Sport level
3. Tied - Adaptive M or DHP
Adjustable ride height and cargo loading flexibility
1. Air Suspension
Wife's daily driver with 22"
1. Air suspension in Normal or Sport level
2. Adaptive M
Note all of the following suspension options include Electronic Damper Controls - Sport+, Sport, Comfort, Adaptive and Individual.
My daily 32 mile commute includes local roads, congested highways, and scenic curvy back roads. Majority of the commute, I'll dial in Adaptive EDC, air suspension set to Sport level and destination set. With that the EDC utilizes navigational data to automatically adjust suspension dampening and your driving style. There's a thread in the main forum that covers this:
Adaptive mode the most comfortable
https://g05.bimmerpost.com/forums/sh....php?t=1685781
The primary purpose of air suspension is to maintain a constant vehicle position through self-leveling and ride-height control. The ground clearance can be adjusted using the rocker switch on the center console. And to make it easier to load the car, you can also select Loading Level using a button in the center console or luggage compartment. The byproduct of maintaining constant vehicle position is ride comfort.
TLDR; hope this helps on a $150 option!
Oddly entertaining video review that was posted in the main forums but skip to time stamp 11:12