Here's the first video of the all-new Audi A5 Sportback that joins the ever-expanding cast of the so-called four-door coupes or if you prefer, sport sedans with coupe-like styling details such as slick rooflines and frameless doors. Scheduled to arrive in European showrooms in September, the latest addition in Audi's A4 - A5 family will offer buyers an initial choice of six engines - three diesel and three gasoline, ranging from 170HP to 265HP. At least for now, Audi says that the A5 Sportback won't be coming to the U.S. market. Watch the video after the jump.