General Motors Co.’s efforts to crank up production of pickups and other lucrative models drove a $4 billion profit in the third quarter, the latest automotive company to rebound from earlier Covid-19-related losses, even as the pandemic worsens.
The car business has mounted a striking recovery since U.S. auto plants were idled for several weeks last spring. Auto makers have managed to keep their factories bustling without major pandemic-related disruptions, while demand for new vehicles has come back stronger than analysts…