The Audi A7 Sportback is pure high-tech. Its body is very lightweight thanks to numerous aluminum components. The elegant interior shows a craftsman's level of workmanship. The four V6 engines combine refined power with groundbreaking efficiency. The 3.0 TDI with 150 kW (204 hp) and multitronic has CO2 emissions of just 139 grams per kilometer (223.70 g/mile).The body is comprised primarily of aluminum and high-tech steels, making it extremely lightweight and safe. The large rear hatch opens wide to reveal a large, extremely usable luggage compartment that is very easy to load. Its 535-liter (18.89 cu ft) capacity swells to a volume of 1,390 liters (49.09 cu ft) with the rear seat backrests folded down.Audi is taking up a new design line representing elegance on a grand scale. The five-door coupe is 4.97 meters (16.31 ft) long and 1.91 meters (6.27 ft) wide, but only 1.42 meters (4.66 ft) high. Its long hood, the short front overhang.