Audi A8 is the most upscale luxury car in Audi series, and its market positioning is to compete with Mercedes-Benz S-Class and BMW 7 Series. Audi A8 takes the lead in using all-aluminum body, which is not only durable, but also reduces the weight of the body and brings more powerful performance to the car. At present, Audi A8 has 4 displacement models and 14 models to choose from, namely 2.5L V6 FSI direct injection engine equipped with 2.8FSI to reduce displacement; Equipped with 3.L V6 TFSI supercharged direct injection engine, equipped with 7 models with two different power options; Three models equipped with V-8 cylinder 4.L V8 TFSI turbocharged direct injection engine and two models equipped with top-class 6.3L W12 FSI engine.