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California’s top environmental official criticized General Motors Co. and Toyota Motor Corp. for backing the Trump administration’s attempt to revoke the state’s authority to regulate auto emissions, saying she hoped car companies had learned by now to work with the powerful agency.

The race for first place in hands-free driving will intensify later this year when General Motors Co. begins selling an advanced version of its Super Cruise system.

General Motors Co. affirmed plans to build electric pickups and SUVs at its Detroit-Hamtramck plant and scheduled the start of production for late next year.

General Motors Co. is expected to announce on Jan. 27 plans to build the all-electric Cruise Origin self-driving shuttle at the Detroit-Hamtramck Assembly plant, according to two sources familiar with the matter.

Michigan on Jan. 22 agreed to revise decadelong tax breaks for General Motors in exchange for the company’s commitment to spend at least $3.5 billion more over 10 years.

The service still being developed by GM’s Cruise subsidiary will rely on a boxy, electric-powered vehicle called “Origin” that was unveiled late Jan. 21 in San Francisco amid much fanfare.

DETROIT — New contracts between the United Auto Workers union and Detroit’s three automakers substantially increased the cost gap between Detroit and foreign automakers with U.S. factories, an industry think tank says.

General Motors Co. delivered on one of the key promises made in its labor contract that ended a 40-day strike in October by giving 1,350 temporary staffers full-time status.

General Motors Co. is moving forward with plans to revive its polarizing Hummer brand, this time as an electric truck instead of an emblem of gasoline consumption, according to people familiar with the matter.

General Motors Co. and Tesla are about to become the first automakers that will have to sell EVs without the benefit of a $7,500 federal tax credit.