Alex Gibney’s nearly four-hour documentary is deeply researched. But because the mogul has long been in the spotlight, little is new.

In a first, Apple software will influence the way a new line of electric vehicles made by Ford Motor operates, and other automakers may follow.

The company is selling more cars, but the company’s profit was down because of price cuts and higher expenses.

Price cuts and low-interest-rate loans are luring buyers, including people offended by the company’s chief executive.

© Michael Nguyen/NurPhoto, via Associated Press

Tesla, Sunrun and Renew Home plan to tap solar panels, batteries, thermostats and other devices installed in millions of homes to meet the energy demands of artificial intelligence.

© Collin Chappelle for The New York Times

Tesla, Sunrun and Renew Home plan to tap solar panels, batteries, thermostats and other devices installed in millions of homes to meet the energy demands of artificial intelligence.

The car’s driver-assistance system was in use when the crash killed a woman on Friday, the police said.

The driver told investigators he was using the vehicle’s automated-driver system when the vehicle left the roadway and crashed into a house in Harris County, Texas.

Tesla sales are rebounding in Europe even though many people have negative feelings about Elon Musk, the company’s chief executive. We want to know why.

Tesla sales are rebounding in Europe even though many people have negative feelings about Elon Musk, the company’s chief executive. We want to know why.

© Nam Y. Huh/Associated Press

Some shareholders might object, but there is little they could do, legal experts say.

With SpaceX shares soaring 20 percent on their first day of trading, the world’s richest person crossed another milestone — one with 13 digits.

Investors who bought the automaker’s shares in its initial public offering became rich. As a result, many have a deep faith in Elon Musk, the chief executive of Tesla and SpaceX.

Antonio Gracias, an investor who has built a $65 billion stake in the company, exemplifies the economic upside of being Mr. Musk’s ally.

The billionaire has stated many plans for his businesses, but has delivered only some of what he said he would, when he said he would, according to a Times analysis.

The ways it set up its board and Mr. Musk’s pay appear to benefit him at the expense of other shareholders, corporate governance experts said.

California truckers have expressed strong interest in the Tesla Semi because it costs much less and can travel further on a charge than electric trucks sold by established manufacturers.