From course to showroom: Cars of things to come benefit from Formula E leaps forward

Only one out of every odd development in electric-vehicle innovation happens inside the clean quiet of an examination research center. BMW AG, Volkswagen AG's Audi and a Silicon Valley-based battery producer are helping push the limits by dashing battery-controlled vehicles through Saudi Arabia, New York, London and Seoul at speeds beating 170 mph (270 kph). Leaps forward made by rivals in Formula E, which started its 6th season this week,....