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The vehicle would drive a short distance, then the camera would take various shots around the car. The camera appears to have a very wide angle lens. Gaps between photographs seemed to be of the order of 20 feet or so.
I suspect that this was photography for a street façade mapping function, similar to that offered by Amazon's A9 maps. There are other possibilities - codepope suggests that it could have been capturing backgrounds for a video game, much as was done for The Getaway.
The GPS link to the mount and the laptop that was being used to control the whole process are clearer are in this view.