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SONOMA, Calif. — Equipment manufacturers showcased new fuel-efficient Class 8 tractor technology here during Shell’s “Make the Future” event at the Sonoma Raceway on April 20.

When a woman crossing an Arizona street was struck and killed by a self-driving Uber car late last month, it sparked a swift public reckoning over the near-term future of autonomous vehicle testing on public roads.

Toyota Motor Corp. has halted tests of its “Chauffeur” autonomous driving system on U.S. public roads after a Uber Technologies Inc. vehicle operating in autonomous mode under the supervision of a human safety driver struck and killed a woman in Tempe, Arizona, on March 18.

Ride-hailing company Uber is in talks to start selling its self-driving technology to Toyota Motor, Japanese media reported March 16.

Toyota Motor Corp. plans to spend $2.8 billion to make sure its system for writing the software for self-driving cars will be just as efficient as the factories that build them.

As automakers spend billions to rack up autonomous miles and map city streets, Toyota Motor Corp. and BMW AG are also betting on a startup with a more modest approach.

The world’s largest car maker and biggest ride-hailing company plan to team up on autonomous driving as technological changes sweep through the transportation industry.

Toyota and Pizza Hut announced Jan. 8 a “global partnership,” that could see Pizza Hut pizzas delivered in autonomous vehicles designed and built by Toyota.

Ryder System Inc. awarded a four-year fueling contract to Clean Energy Fuels Corp. to supply Ryder’s fleet of liquefied natural gas heavy-duty trucks serving Toyota Motor Manufacturing’s plant in Georgetown, Ky., Toyota’s largest production facility in North America.