u/5aunders

Hello everyone 👋

I am looking to buy a BMW with the B58 engine. I understand the 3, 4, and 5 series 40i are the most popular choices. But i seriously love the 6 series, and I heard to stay away from the N63, even though the TU3 isn’t as bad. But the question is is a 640i a good choice? I am asking to see if it would be that much different than the other series and is it still modifiable? Thank you as I am new and still learning.
Thanks.