Someone posted it and I've already forgotten which one, but a recent concept car has a concave spoon-shaped depression ahead of the spoiler to add downforce without increasing the drag.
Search function isn't helping. 
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Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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"If you don't read the newspaper, you are uninformed; if you do read the newspaper, you are misinformed. " someone who was not Mark Twain
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