With a streamlined design focused on maximizing aerodynamics, the Audi E-Tron Quattro Concept is an electric crossover that made its first appearance at this year’s Frankfurt auto show. It is no secret that the plug-in SUV aims to take on the forthcoming Tesla Model X, and although this version of the E-Tron Quattro is just a concept, Audi says a production model will debut in 2018.

Three electric motors (one in the front and two in the rear) are mated to a liquid-cooled, lithium-ion battery pack for a tota…