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Walmart Inc. is big in almost every way — 4,755 stores, 1.5 million employees and $380 billion in revenue in the United States alone. But one part of the world’s largest retailer remains minuscule. “We have a tiny ad business,” CEO Doug McMillon told investors in October. “It could be bigger.”

Tesla Inc. CEO Elon Musk visited Norway to accelerate a fix to service capacity in a key market for the carmaker after delays and bottlenecks angered customers in Scandinavia’s richest nation.

Looking like a delegation of toasters from space, a generation of electrically powered, self-driving mail trucks will roll out of a suburban Detroit industrial park later this year. Their mission: Revolutionize mail and package delivery.

Elon Musk’s SpaceX has a big stake in the battle over border security being waged in Congress: a launchpad on the U.S.-Mexico border that it plans to use for rockets carrying humans around the world and eventually to Mars.

DETROIT — Subaru, Tesla, BMW, Volkswagen, Daimler Vans, Mercedes and Ferrari are recalling about 1.7 million vehicles to replace potentially deadly air bag inflators made by Takata Corp. of Japan.

Tesla’s Fremont factory will be the hardest hit in California by the global job cuts the electric vehicle maker announced last month.

Ford Motor Co. is investing $1 billion in two Chicago factories and hiring 500 workers to expand its ability to crank out high-profit sport utility vehicles, including its new Explorer.

Independent engine maker Cummins Inc. supplied the most Class 8 diesel engines overall in 2018, and set a record for its heavier-displacement units used in one of the strongest years on record for new truck demand, WardsAuto.com reported.

DETROIT — Cold temperatures can sap electric car batteries, temporarily reducing their range by more than 40% when interior heaters are used, a new study found.

Nearly a dozen stakeholders representing local governments and the freight and commuter sectors on Feb. 7 urged a House transportation panel to identify a sustainable source of funding for an infrastructure bill.