A sales slump at Tesla (TSLA) has extended into the new year. In China, sales were down 11.5 percent in January. Tesla isn’t ...

Elon Musk's Tesla has seen a huge drop in sales in a number of European countries in recent weeks as the billionaire's ...

While Elon Musk has been generating headline after headline for his efforts to reshape the US federal workforce, the stock of his electric-car company is on track for its worst weekly performance ...