Audi’s Prologue concept coupe

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.  (Luis Sinco / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. At left is Ulrich Hackenberg, head of Audi’s R&D. At right is Audi design chief Marc Lichte.   (David Undercoffler / Los Angeles Times)

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.

Audi unveiled this new Prologue concept car Tuesday night ahead of its L.A. Auto Show debut on Wednesday. The concept is a look at the new design direction for future Audi models.   (David Undercoffler / Los Angeles Times)

Marc Lichte introduces the Audi Prologue concept car at the 2014 Los Angeles Auto Show on Nov. 19, 2014.  (Marcus Yam / Los Angeles Times)

The Audi Prologue concept car unveiled at the 2014 Los Angeles Auto Show on Nov. 19, 2014.  (Marcus Yam / Los Angeles Times)

A crowd of reporters and photographers surround the Audi Prologue concept car after its introduction on Nov. 19, 2014.  (Marcus Yam / Los Angeles Times)