2014 AUDI A8/S8: Audi touts its A8 flagship as “The sportiest premium sedan in the full-size class.” The line was expanded last year from two (V-8 and W12) to a five vehicle line up (3.0T V6, 4.0T A8, 4.0T S8 and W12). The 3.0-liter turbodiesel V-6 develops 240 horsepower, while the supercharged V-6 version generates 333 hp. A 4.0L turbo V-8 is available with a 420 hp rating. For those who have to have a V-12, Audi has a 6.3L version that can develop 500 hp. And, for the adventurous performance-oriented driver, the Audi S8 can be equipped with a 4.0L, twin-turbo V-8 that pumps-out a monster 560 horses - making it the most powerful sedan in Audi of America's history. Acceleration from 0 to 60 takes a mere 3.9 seconds. Bringing the S8 to a safe stop are the high performance ventilated disc brakes, with matte black painted calipers that carry the S8 logo. All engines are mated to an eight-speed Tiptonic automatic transmission and Audi quattro all-wheel drive system. While the 3.0T and 4.0T are available in normal and long wheelbase versions, the S8 and the A8 W12 can be ordered only in normal and long wheelbase versions respectively. All A8s seat five passengers, and with the executive rear seating package available in the Audi A8 L and the A8 L W12, you're upgraded to a reclining relaxation seat with a power footrest, dual 10-inch video screens and a refrigerator. For further improvements in fuel economy, Audi has implemented Audi cylinder on demand technology for the new 4.0T V-8 engine and start-stop technology for the V-6.
Visit the official Audi site for more information