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![What is this black Spinning thing on top of big black van? Ot speeds up and slows down, relative to the vehicle speed. I though maybe self driving radar, but maybe just What is this black Spinning thing on top of big black van? Ot speeds up and slows down, relative to the vehicle speed. I though maybe self driving radar, but maybe just](https://i.redd.it/wfc65xdyhct11.jpg)
What is this black Spinning thing on top of big black van? Ot speeds up and slows down, relative to the vehicle speed. I though maybe self driving radar, but maybe just
![WHAT IS THAT SPINNING THING ON TOP OF THE NEW AMAZON PRIME STEP VAN/BOX TRUCK DELIVERY VEHICLE? - YouTube WHAT IS THAT SPINNING THING ON TOP OF THE NEW AMAZON PRIME STEP VAN/BOX TRUCK DELIVERY VEHICLE? - YouTube](https://i.ytimg.com/vi/QPjitwD73ws/maxresdefault.jpg)
WHAT IS THAT SPINNING THING ON TOP OF THE NEW AMAZON PRIME STEP VAN/BOX TRUCK DELIVERY VEHICLE? - YouTube
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