Ever wondered what the spinning thing is on a van roof? - Flettner
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Mysterious Van With Lidar Sensors Spotted in San Francisco
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What is the spinning thing on top of this car? : r/whatisthisthing
Van Roof Mounted Spinning Rotary Wind Powered Air Fan Vent Ventilator BLACK LDV | eBay
What is this spinning black thing on top of the UPS truck? : r/whatisthisthing
What Are The Spinning Discs On The Roofs Of Vans? - LBC
Flettner Ventilator 2000 Ventilator | U.S. Upfitters
What are these spinny things I see on top of some vans? : r/whatisthisthing
What's the Spinning Thing on Top of UPS Trucks?
What's the Spinning Thing on Top of UPS Trucks?
What is this round spinning thing on the back of a utility truck? It only spun when the van was moving. : r/whatisthisthing
Phoenix Waymo vans: How the self-driving cars operate on roads
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
Amazon.com: Cargo Bar Adjustable 40"-70", Small Rapid Ratchet Strong Steel Load Lock Rod for Pickups, Vans, & SUVs : Automotive
Ever wondered what the spinning thing is on a van roof? - Flettner
What Is The Spinning Thing On Top Of This Johnson Controls Van? (reddit) GIF | Gfycat
Mysterious Van With Lidar Sensors Spotted in San Francisco
