It's a drain hole. When I got my car back from the body shop, I asked about the same thing. I thought something was missing.
It's a drain hole. When I got my car back from the body shop, I asked about the same thing. I thought something was missing.Interesting. My 2016 with 30k miles has the same exact hole situation, even with the same dirt lol. I wonder if that's some sort of drain hole.
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And the black spots of dirt on the back are because you drove in the rain. Just doing it once will make it look like that (doesn't matter if you washed it). Mudflaps won't help, because it's the way the air comes over the back of the car.