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DETROIT — The U.S. government’s highway safety agency has launched an investigation into four automakers that have a potentially deadly type of Takata air bag inflator in their vehicles but have yet to recall them.

Canadian shipments of crude by rail are poised to surge next year, spurring investment in new export infrastructure.

The Amazon.com vans parked outside apartment buildings and along suburban cul-de-sacs aren’t just bearing gifts to online shoppers this holiday season. The e-commerce giant’s home-delivery push has been a boon to automakers, too.

WASHINGTON — °®¶¹´«Ã½-buying slumped in November, with some Americans priced out of the market by rising prices or constrained by a shortage of sales listings.

Just when will heavy-duty electric trucks be ready for prime time, and when will motor carriers purchase them?

The Trump administration on Dec. 19 set relatively flat quotas for plant-based fuels in 2020, rebuffing ethanol and biodiesel allies who said the targets don’t do enough to support the industry.

Filings for U.S. unemployment benefits fell last week by the most since February but missed forecasts for a larger drop, potentially reflecting lingering seasonal-adjustment issues stemming from the late Thanksgiving holiday this year.

American consumers are more upbeat about the economy than at any time in more than a year against a backdrop of steady job gains and record stock prices.

Daimler AG’s Mercedes Benz has agreed to pay as much as $20 million in penalties for violations of how it operated its vehicle recall program.