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Google’s Waymo, Uber and carmakers GM and Mercedes-Benz are among the companies working to put driverless vehicles in showrooms. That competition also should help lower prices that can reach $75,000 apiece for the sensors that scan a car’s surrounding environment so it knows how to drive itself.

Self-driving vehicles typically are described as a disruptive technology that will make traditional modes of public transportation obsolete, but a recent announcement by Chandler-based Waymo is challenging that narrative.

An automaker like General Motors Co. brings two advantages to the development of self-driving vehicles: knowledge of how to build a car and the factories to do it. Silicon Valley’s biggest entrants into autonomous vehicles, particularly Alphabet Inc., have legions of coders and piles of cash.

Gradient Ventures, an early-stage venture fund within Google, is leading a $6 million investment in a new company that’s building software to let humans control cars remotely.

Waymo is teaming up with Jaguar Land Rover on autonomous vehicles, its second major automaker partnership and a big boost for the nascent technology that has come under scrutiny recently.

In a pioneering self-driving car company’s first public comments on the Uber autonomous car accident March 18 that killed an Arizona woman, Waymo CEO John Krafcik said his tech could “handle” that very scenario.

It’s getting to be a traffic jam. Alphabet Inc.’s autonomous vehicle division Waymo began this month operating an autonomous freight truck in the Atlanta area, carrying server equipment, racks and related material to Google data centers.

Waymo will start testing a fleet of autonomous freight trucks in Georgia’s capital that will take deliveries to Google’s data centers.

Waymo, a unit of Alphabet Inc., got a permit in late January from the Arizona Department of Transportation to operate as a Transportation Network Company, according to Ryan Harding, a spokesman at the state agency.

Google’s gravest threat is probably a regulatory crackdown on its lucrative search engine, and there’s a resurgent drumbeat about its size and power in Washington. If the company’s worried, that’s not showing up in its lobbying activity.