Ford Motor will build a small electric SUV with a 300-mile range by 2020, the company announced Tuesday. The all-electric sport-ute, which will be built at Ford's Flat Rock, Mich., plant, is one of seven electric-powered vehicles it plans to sell by the end of the decade. These include a fully autonomous vehicle built for ride sharing, as well as five other hybrid cars and trucks that will be powered by electricity and a standard gasoline engine.