Full-speed (sort-of) in the Audi E-tron

New Red Audi Following its U.S. debut at the Los Angeles auto show, we got a chance to sample the battery-powered sports car along a scenic stretch of the Pacific Coast Highway.The bright red show car is the same prototype our man Georg Kacher sampled in Europe, but has since seen its top speed lifted from a fast crawl to a more informative 55 mph. That’s still well short of the 125