I am still deciding about final position in my E46. I will use similar sized "DR32 mount". Do you have the picture from the face of the car? It seems to me that (at least in E46) under the rearview mirror is just too low for my liking. But it is great position for short period parking camera (you can turn it left or right, depending which side you want to "protect"). I want to go as high and unobstructed as possible, with the ability to turn it left and right 90°...and it's proving very difficult to find a perfect position, even with the small mount as mine.