Enrique Zarate, 19, had spent just a year in college when he landed an apprenticeship at a new BMW facility in San Luis Potosí, Mexico. If he performs well, in a year he'll win a well-paid position, with benefits, working with robots at the company's newest plant. Within a decade or so, most of the BMW 3 series cars that Americans buy will probably come from Mexico, built by people like Zarate. "When you start with such little experience, and get such a big salary, it's unbelievable," says Zarate, whose father is a taxi driver and whose mother is a housewife. Exports from Mexican factories have jumped 13% since 2012.