Quote:
Originally Posted by ovekvam
Our Valencia Orange F20 is also very dirty. One strange thing I have noticed, is that the car seems to collect dirt on the rear end of the back doors, below the door handles. Just behind the doors, it is fairly clean again. How does that happen? You can also see it in the picture on top of this thread.
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I think the panel gap generates some kind of vortex that causes dirt to get deposited on the back door. Must be related to the angle as the front isn't so badly affected. Could also have something to do with the wheel arch bulge.
Most of the cars I've owned have had the same thing.