I asked this question a few weeks ago and got some good answers but no one answered my original question: Why the roof spoiler is there (E46. Maybe others?). So, does anyone know why the engineers at BMW have added this feature? Seems to me that a smooth roof-line would create the best flow of air over that part of the body. I understand the theory and usefulness of the front air dam, side-skirts and rear deck spoiler. TIA!
- posted
18 years ago