Just in industries directly related to autos, trillions of dollars change hands each year flowing to and from auto insurers, auto financiers, service and repair shops, rental agencies, taxi operators, fleet managers, oil companies, transportation and logistics companies, emergency rooms, health insurers, medical practices, personal-injury lawyers, government taxing authorities, road-construction companies, parking-lot operators, and on and on and on.

FORBES: Google's Driverless Car Is Just One of Many Looming Disruptions