I have seen several Google Street View cars driving around over the past few years. You can’t miss them. They are very distinguishable with their camera dome mounted on the top of a vehicle. They have a total of fifteen 5 megapixel cameras each with a 5.1mm lens fixed at an f/2 aperture for a total capture of roughly 65 megapixels (after you remove the regions that overlap). They use a custom baseplate to mount the camera rig to the top of the vehicle attached to a typical ski/bicycle rack. They are performing compression on the data and every block of driving is approximately 10 megabytes. Google has amassed many petabytes of data worldwide. The funniest (though expensive) stories you hear about are drive-throughs where they have lost a few cameras from drivers who forgot about the camera mast on their roof. They have also come out with portable versions of their camera rigs where hikers carry them.