Viewpoint: Detroit is the new Silicon Valley of auto innovation

Auto companies are revolutionizing the industry with 3D printing, connected-car systems and an array of new smart technologies, Nolan Finley writes. And with a high-tech workforce, automated engineering and manufacturing, automakers are helping transform the culture of Detroit and leading analysts such as David Cole to observe that “there’s no boundary between Detroit and Silicon Valley. This is the absolute example of an industry that is exploiting technology.”