All-electric Audi e-tron Sportback concept teased for Shanghai auto show

Teaser for Audi e-tron Sportback concept debuting at 2017 Shanghai auto showThe Shanghai auto show is shaping up to be a showcase for all the green cars and concepts that were absent from last week's New York auto show. Among them is a concept for a "four-door coupe" version of the Audi e-tron all-electric SUV that'll go into production sometime next year. The Audi e-Tron Sportback Concept doesn't necessarily preview a...