Thanks all for the reply!
I knew that initial reports all said rear-axle air suspension is standard. However, Horatiu Boeriu from BMWBlog stated rea-axle air suspension is optional in his review (linker below) and in couple of his videos specific stated rear suspension is not air suspension in US market.
https://www.bmwblog.com/2023/10/01/2...-drive-review/
BMWUSA site i5 feature describes eDrive40 with "Multi-link rear suspension" while M60 with "Adaptive Suspension with electronically controlled damper" plus "Multi-link rear suspension".
That's why I came here and aksed. Was hoping to get some input from real eDrive40 owners or service techs.