Similar to the hood 'vents' on the MGA. They flowed opposite to expectation.
There was an advertiser in Hot VWs in the 80s that had a picture they ran every month of Beetles racing in the rain. The rain flying off the windshield at right angles to the air flow reached two or three feet in the air! Would that I could find that picture today. 
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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