I have a pre-LCI G20 330i with the m sport suspension as my daily, and a LCI G01 m40i with adaptive suspension for road trips. I also recently drove a base LCI G20 330i as a loaner. All with run flats. Here were my thoughts:
LCI G20 base loaner: somewhat boring, wallows like a boat (bad), soft and soaked up bumps well, too much body roll for my liking, hated the steering wheel and curved screen
My G01 in Comfort Plus setting (coded): wafts like a land yacht (good), soft, soaks up bumps very very well, body roll is acceptable
My G01 in Sport Plus setting: medium+ stiff, soaks up bumps, tighter but bumpier, not at all spine shattering, body roll well controlled, does not hop over high speed construction bumps.
My pre LCI G20 with m sport suspension: medium+ ++ stiffness, feel more bumps but not spine shattering, rear occasionally hops going over construction bumps at freeway speeds, body roll is good. Having driven with adaptive/adjustable suspension in the G01 though, I do miss it, but I don’t need it. Acceptable daily comfort on the sportier side which is what I prefer.
I’ve never been in full M cars but have driven JCW Minis on RF, and I find those to be more spine shattering. YMMV on the G20. Good luck!
I have a pre-LCI G20 330i with the m sport suspension as my daily, and a LCI G01 m40i with adaptive suspension for road trips. I also recently drove a base LCI G20 330i as a loaner. All with run flats. Here were my thoughts:
LCI G20 base loaner: somewhat boring, wallows like a boat (bad), soft and soaked up bumps well, too much body roll for my liking, hated the steering wheel and curved screen
My G01 in Comfort Plus setting (coded): wafts like a land yacht (good), soft, soaks up bumps very very well, body roll is acceptable
My G01 in Sport Plus setting: medium+ stiff, soaks up bumps, tighter but bumpier, not at all spine shattering, body roll well controlled, does not hop over high speed construction bumps.
My pre LCI G20 with m sport suspension: medium+ ++ stiffness, feel more bumps but not spine shattering, rear occasionally hops going over construction bumps at freeway speeds, body roll is good. Having driven with adaptive/adjustable suspension in the G01 though, I do miss it, but I don’t need it. Acceptable daily comfort on the sportier side which is what I prefer.
I’ve never been in full M cars but have driven JCW Minis on RF, and I find those to be more spine shattering. YMMV on the G20. Good luck!