What is Audi A7's Sportback design and how does it differ from other models?

I am interested in understanding the design philosophy behind the Audi A7 Sportback and the key differences it has from other Audi car models. What sets it apart in terms of exterior and interior design?

The Audi A7 Sportback was designed as a four-door coupe, combining the practicality of a sedan with the sporty elegance of a coupe. Its sloping roofline and wide stance give it a more dynamic and sleek appearance compared to other Audi models.

One of the key design elements of the Audi A7 Sportback is its frameless doors, which adds to its coupe-like appeal. This also allows for a seamless transition between the exterior and interior, creating a more spacious and open feel inside the car.