The third all-electric car to be shown from the brand with the four rings, the Audi E-Tron GT Concept is arguably the most exciting. It relies on a pair of motors and quattro all-wheel drive to put 590 hp to the pavement, good for a 0-62 time of 3.5 seconds and a top speed of 149 mph. Range is said to be roughly 250 miles, with 80 percent of that replenished in just 20 minutes by the 800-volt charging system. Outside the design is aggressive and in keeping with the brand's design language, with dramatic LED lighting and sharp lines. Unlike most concepts, this one is already slated to begin production in late 2020, but you'll be able to see it before then in Avengers 4, most likely driven by R8-enthusiast Tony Stark.