Where do you think the data providers get their data from ? They have cars as well. And they've had them for DECADES before Google. And it's not like Google is

Where do you think the data providers get their data from ? They have cars as well. And they've had them for DECADES before Google. And it's not like Google is driving around continuously updating their data. For example Street View in many parts of my city is over 3 years old and still missing many newer suburbs. So no. Google does not have a brute force approach. They have just had longer to perfect their algorithms.