Audi, bless its Teutonic heart, has launched the most powerful production car it has ever built—and it doesn’t make a sound.

The Audi A6 is a true luxury car even though it slots below the full-size A8 in the German automaker's portfolio. Now built on the Premium Platform Combustion (PPC), it continues to be available in ...

Audi saw sense at the last minute to retain the A6 badge for its big exec, so customers will know what they’re getting in the ...