Elon Musk, who made a fortune selling PayPal, has poured a lot of his money into Tesla, the maker of electric cars. But it has been hit with delays, financial crises and a personnel soap opera.

Elon Musk, who made a fortune selling PayPal, has poured a lot of his money into Tesla, the maker of electric cars. But it has been hit with delays, financial crises and a personnel soap opera.