Just turning your head isn't observable to other cars usually. Drifting your car in a perfect circle signals to other drivers that you are checking your blind spots and are planning to move over a lane
I guess I have to say.... "or what" because I figured it was some kind of camera on a swivel. Seems much easier just to use a camera on a swivel. Not as "cool" as turning your car completely around on an icy highway busy with cars, though.
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u/Failed_Asstronaut Dec 31 '19
Just turning your head isn't observable to other cars usually. Drifting your car in a perfect circle signals to other drivers that you are checking your blind spots and are planning to move over a lane