What is Audi A8's Prologue Concept and How Does it Differ From Other Audi Models?

I have heard about Audi's Prologue Concept for the A8, but I am confused about how it sets itself apart from other Audi models. Can you explain the key differences?

The Prologue Concept for the Audi A8 showcases a new design language and advanced technology that will distinguish it from other Audi models. For example, it will feature a wider and lower stance, as well as new lighting and grille designs. With a focus on luxury and innovation, the A8 Prologue Concept will be a truly unique addition to the Audi family.