Audi’s 2020 e-tron Sportback will arrive at US dealerships this summer, the automaker has confirmed, pricing up the four-door fastback EV and confirming range estimates ahead of its launch. Announced back in November 2019, the e-tron Sportback will be Audi’s second all-electric production vehicle in the e-tron family, following the original SUV it released last year. This new car falls …