The automaker reported a gain of 6.4 percent for the latest quarter, its first such increase this year. Tesla Motors Inc, Electric and Hybrid Vehicles, Automobiles, Company Reports, Driverless and Semiautonomous Vehicles, Batteries, Musk, Elon, United States, China, Europe The automaker reported a gain of 6.4 percent for the latest quarter, its first such increase this year. NYT > Business