Last week was a difficult one for Tesla. After the carmaker waged a public war of words with federal safety regulators, CEO Elon Musk picked a Twitter fight with a magazine and may have improperly revealed financial information.

General Motors has officially agreed to sell its Opel and Vauxhall brands to the PSA Group as the Detroit automaker attempts to stanch more than a decade of staggering losses in Europe.

Arrival was founded in 2015 and has 800 employees, but until now has been in “stealth mode,” revealing little about its business model or plans. But this deal is a sign it has been doing something right, says Michael Harley...

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