So, I'm stuck in some traffic on the freeway, going slow, or I wouldn't have noticed this. The car in front of me appeared to have little black winglets glued to the bottom of their rear bumper. Is that a "thing?" It's obviously after-market, otherwise, it would be color matched to the rest of the car, or the owner wanted to make sure they would be noticed.
so, do they actually serve some aerodynamic purpose? or was the owner simply a gullible ninny? I've looked on Google, but nothing I've seen looks like those.
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