Amazon to Buy Zoox, in a Move Toward Self-Driving Cars

Amazon for several years has worked on self-driving technology to deliver goods, a natural fit with its shopping business. Last year, it invested in Aurora, a driverless-technology start-up. Mr. Wilke expressed concerns in the past that Uber, through its ride-hailing business, could build a direct delivery relationship with customers that it could use to compete with Amazon, according to a person with direct knowledge of the comments. He would speak only anonymously because he feared retaliation for discussing internal conversations. Uber has said it wants to be the Amazon of transportation, though its self-driving ambitions have been derailed by cost-cutting and legal battles.