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SAN ANTONIO — As truck technologies and emissions systems continue to evolve and electric-powered trucks begin to hit the market, the knowledge and expertise required to service and maintain these vehicles is also shifting.

While truck manufacturers make advances in battery electric and hydrogen fuel cell technology, they also are making fuel efficiency and aerodynamic improvements to their diesel offerings that will form the backbone of the trucking industry for years to come.

Increasingly stringent emissions regulations over the past few decades have driven a steady cadence of changes to diesel engine architecture and heavy-duty truck design.

Elon Musk oversaw the creation of a 2016 video that exaggerated the abilities of Tesla Inc.’s driver-assistance system Autopilot, even dictating the opening text that claimed the company’s car drove itself.

Nikola Corp. announced it developed a heavy-duty, 700-bar hydrogen mobile fueler capable of direct fueling hydrogen fuel cell electric vehicles.

Volvo Group Venture Capital AB on Jan. 18 said it is investing in Canadian autonomous trucking technology company Waabi Innovation Inc.

Change to the hidden health and climate cost of consumer goods carried by tens of thousands of drayage trucks is coming in the form of more widely-accessible electric alternatives.

DETROIT — With its sales slowing and its stock price tumbling, Tesla Inc. slashed prices dramatically Jan. 13 on several versions of its electric vehicles, making some of its models eligible for a new federal tax credit that could help spur buyer interest.

WASHINGTON — Successful electrification of heavy trucks will require motor carriers to coordinate driver rest periods with charging their trucks, a potential obstacle that could increase carrier operational costs and result in delivery delays.

Nikola Corp. announced it is moving its battery manufacturing to its Coolidge, Ariz., manufacturing facility from Cypress, Calif.