What is Audi A8 Prologue Concept?

Can someone explain to me what features and technologies are included in Audi A8 Prologue Concept and how it differs from other Audi models?

The Audi A8 Prologue Concept is a luxury, full-size sedan that showcases advanced technology and design elements, such as a fully digital dashboard and new light design features. It is a concept car that previews the future of Audi's flagship A8 models.

Compared to other Audi models, the A8 Prologue Concept is larger and more spacious, with a longer wheelbase and sleeker design. It also features a hybrid electric powertrain and autonomous driving capabilities.

Audi A8 Prologue Concept has a more streamlined and futuristic design than traditional Audi models, with a more prominent front grille and sharp, angular headlights. It also has a fully autonomous driving mode called the Audi AI:ZONE.