When Audi makes an S version for a model in its lineup, its engineers do all that they can to deliver a very good balance between sportiness and comfort, and the S7 is no exception. The frameless doors of the A7 and the sloped roof made the A7 Sportback look like a coupe, and in the Audi philosophy there is no reason to build a coupe if you don't put a powerful engine under the hood. That's what they did with the good-looking A7 when it became an S7. The sleek lines of the vehicle form an aerodynamic shape, uninterrupted from hood to the taillights. On the tailgate, there is a thin line where the rear spoiler is hidden flush to the trunk lid. As usual for any S vehicle, the outside mirrors and the front grille are silver, regardless of the color of the car. Inside the S7 there are four seats available and those for the front passengers are bucket seats signed by Recaro. In the rear, the middle seat has been removed for the benefit of the other two passengers who can comfortably seat there. From the technical point of view, the engine is the same as in the Bentley Continental GT V8. It has the twin turbochargers between the engine banks to cut the turbo-lag. The transmission is a 7-speed dual-clutch system and it sends the power to all four wheels. For the suspension, an optional air system is available.