But can they actually send all that data back to their data centers? If they are really capturing that much data, they would need to send it back using consumer

But can they actually send all that data back to their data centers? If they are really capturing that much data, they would need to send it back using consumer home internet connections which doesn't seem realistic. I don't think the fleet size is as large an advantage if you can't actually get 100% of the sensor data.