I just joined this group and wanted to introduce myself. I have owned and been around the BMW community for over 30 years. I am interested in getting back into a BMW.... more specifically a F15 xDrive35i with M tech (M Sport?) bodykit

Why the straight 6 model? I have never been a fan of BMWs with "V" engines...just not for me.

Saying all that.... I am here to learn. Please share with me all threads that gives buyers guide. I need to know what to look for and what upgrades are recommended by owners.

TIA