They don't need all that gear to do the job.
A continious digital pannarama camera & a GPS is all that is needed.
The globe cars are most likely 100% automatic so any clot can just drive one down the road.Or if Google has it's way a driverless car.
In the US it is probably different there is a lot more money to be made so they update a lot sooner but two of my old courier customers gave up fashion to shoot for Google.
One had a 180 deg panorama film camera and he did building views for real estat agents as well.
Scott had a full 360 Deg digital which he bought originally for doing interiors of expensive harbour front properties for real estate agents "virtual inspection" of property for sale principally to OS buyers.
The new digitals ( when I closed down the business a few years ago ) could capture amazing detail.
At full resolution Scotts camera could read the headlines on the newspaper you had in your hands while you were having breakfast through several windows at a couple of hundred meters.
Heaven only knows how fine they are now days.
Pannavision had a warehouse at Artarmon and from the top floor you could zoom into peoples units in Darlinghurst some 8 miles away good enough to read the time on a digital clock. I was amazed . no such thing as privacy any more.
They were both about the size of a boot box.
Now days the cameras the green gooses use to spy on farmers to prove you shoud not eat meat ar about the size of a cigarette packet and can read your I phone screen from 500 '
My 12 year old camera will read number plates on vehicles at my gate from 150 yards.
The land lord is about to fit some that will read number plates from 500 yards on his gates to catch the vandals who keep ripping it off.
the police here have cameras mounted in their cars that can read number plates in real time in both direction as they are driving down a 6 lane freeway at 100 kph ( about 80 to you ) analyse the image search 13 databases fast enough for the cop to pull you over.
Local councils are using the same technology to catch people illegally parked.
You get a pretty colour photo in the mail with a fine or if you have overstayed parking time , several pretty pictures.