Awesome write up. Did you have to code the car with option S386A ? I am assuming there is no reason to as nothing electronic is part of the rails that I can tell from your pictures. Has anyone run into having to drill the holes out? Mine is a 2010 E70 Diesel and after traveling this week for Thanksgiving I realized how much I could use rails to carry more stuff on the roof. Since I didn't get the rail kit when I ordered I am wondering how much drilling I will need to do. Anyone run into this?