The stock’s high valuation is another reason for caution. Tesla shares trade at 92 times forward earnings, compared to 21 times for the S&P 500 and an average of 28 times for Tesla’s mega-cap peers.

Xiaomi, which produces smartphones and consumer electronics, delivered 135,000 E.V.s last year after tapping China’s robust ...

How did a 20-employee company making mobile phone batteries go on to de-throne Tesla as the world’s top-selling manufacturer ...

The New York Times interviewed more than 60 people familiar with Mr. Musk’s effort to piece together new details about it.