The number of Fiat Chrysler factory workers in North America will increase as the company reduces production of passenger cars and shifts toward trucks and SUVs, the company’s chief executive said Tuesday. […] He (Sergio Marchionne) said new Ram pickup truck will come out at the beginning of 2018. It will be built at two U.S. factories in suburban Detroit, so it won’t cost the company any production of the current model. A factory in Sterling Heights, Michigan, that now makes the Chrysler 200 sedan will be retooled to make pickups, he said. The company also plans to build a...