You're right! I had seen these on the board previously. After looking at them again, I understand how you feel. I do really like them, but something just isn't right. The E39 has very subtle lines and styling, then these sideskirts just have a little too much going on to blend well.Check out the Kerscher side skirts for the E39 M5 if you want vents. I have a set, but am still on the fence about installing them. There are pics of them somewhere on the board.