Yeah, I have both a X3 B48 and 2018 340. Power difference is obviously night and day plus the weigh differential between the 2; however the X3 B48 is more than up to the task.
We tested the X30 M40i but, since it’s my wife’s car, she preferred the 4 banger over the 6.
I’m late 50s and test drive a manual 2 series back in 2019 or so. Found the ride a bit too rough tbh. Got a 340 instead.