Overview & Reviews

The flagship Audi A8 is a full-size luxury sedan meant to appeal to wealthy consumers looking for maximum luxury and space. Although competing models from the premium German and Japanese marques may sell in greater numbers, the A8 does possess a distinct advantage because of its aluminum frame and body panels. Significantly lighter than a traditional steel structure, the Audi Space Frame (ASF), as it's called, helps offset the weight of the car's Quattro all-wheel-drive system; the A8's competitors are primarily rear-wheel drive.

Thanks to Quattro, winter weather capability is one of the Audi A8's strengths. Luxurious accommodations are another, particularly with the last couple of generations. As with other Audis, understated luxury and cutting-edge electronics combine to form an experience that delivers refinement in abundance. Though it's sometimes overlooked, the A8 is a fine choice for a luxury flagship.

Current Audi A8
The Audi A8 is a full-size luxury sedan available in standard and long-wheelbase ("L") forms. Even with standard all-wheel drive (AWD), the A8 still weighs less than most of its rear-wheel-drive rivals, let alone those fitted with optional AWD. The A8's AWD system has a rear-biased power split, which helps to provide a sportier feel akin to a rear-drive performance sedan.

There are six trim levels: 3.0T, L 3.0T, L 3.0 TDI, 4.0T, L 4.0T and L W12. The 3.0T trims have a supercharged 3.0-liter V6 with 333 horsepower and 325 pound-feet of torque. Like all A8 engines, it runs through an eight-speed automatic transmission. The 4.0T trims have a turbocharged 4.0-liter V8 that makes 420 hp and 444 lb-ft. The W12 features a 6.3-liter 12-cylinder engine that cranks out 500 hp and 463 lb-ft.  In addition to these gas-fueled powerhouses, there is the 3.0 TDI, a 3.0-liter turbodiesel V6 rated at 240 hp and 406 lb-ft. Regardless of engine choice, acceleration is swift, with the 0-60-mph sprint ranging from around 4.2 seconds to 6.3. Fuel economy is also notable, with the TDI in particular rated at an impressive 28 mpg combined.

Of course the A8 comes loaded with all the latest high-tech features. Highlights include a dynamic steering system that can intervene with automatic countersteering in a slide, adaptive cruise control with stop-and-go capability, automatic emergency braking, and night vision with thermal imaging and pedestrian detection. Audi's MMI electronics interface features an additional touchpad interface that reads fingertip gestures as letters and commands. Google Earth mapping for the navigation system is another A8 exclusive.

Beyond the sumptuous cabin, which features front and rear seats that can be adjusted in a multitude of ways, there's also the big sedan's impressive ride and handling characteristics. The ride is comfortable without excessive float over bumps. When pressed on a curvy road, the A8 proves surprisingly agile, with nicely weighted steering. Rear seat room is ample in the regular-wheelbase model, while the A8 L provides more than enough legroom for a pair of 6-footers.

The A8 undoubtedly lacks the name recognition and styling flair of its fellow Germans, but don't let that stop you from giving it strong consideration. With its roomy, best-in-class cabin and excellent driving dynamics, this luxury sedan shines as one of the strongest picks in its segment.

Used Audi A8 Models
The current A8 represents the third generation in the model's history, debuting in 2011. In that inaugural year, the sole engine was a 4.2-liter V8 engine with 372 hp and 328 lb-ft of torque. The following year brought the 6.3-liter W12. For 2013, the 4.2-liter was dropped, while both the supercharged V6 and turbocharged V8 seen in the current lineup debuted. Apart from lacking the TDI engine option and some minor differences in standard and optional equipment, these latter A8s are otherwise essentially identical to today's version.

The previous, second-generation Audi A8 was sold from 2004-'10. Relative to its predecessor, this generation offered a lighter chassis and a more muscular V8, along with lots of comfort, safety and suspension upgrades. This A8 was offered in both standard-wheelbase (A8) and long-wheelbase (A8 L) versions. The base engine was a 4.2-liter V8 that generated 335 hp and later rose to 350 hp for 2007. A six-speed automatic transmission and all-wheel drive were standard. From 2005-'09, there was an A8 L W12 model that featured a 6.0-liter 12-cylinder engine that produced 450 hp.

Changes were light during this generation. There were slight styling alterations for '08, while the equipment list was bolstered nearly every model year. Regardless of which year you may be considering here, cabin furnishings were superb and the MMI interface made accessing the car's numerous audio, climate and navigation functions fairly easy. This A8 was often overlooked by luxury sedan shoppers, but we always found it to be a great alternative and certainly equal to other flagships in terms of luxury, performance and craftsmanship.

The first-generation Audi A8 was offered from 1997-2003. Although it was one of the most technologically advanced cars on the market by virtue of its aluminum frame, it never had its successor's flair for style or performance. Understated in its adornments inside and out, the original A8 failed to deliver the over-the-top ambience that's so important for high-dollar luxury sedans sold in the United States. However, if you like the idea of owning a discreet luxury car, you can buy a used A8 for considerably less than you'd pay for a used BMW 7 Series or Mercedes-Benz S-Class.

Early Audi A8s were offered only with a 113-inch wheelbase, which meant that their backseats were cramped compared to the other full-size luxury sedans. The longer and roomier A8 L arrived for the 2000 model year and would be our pick if you're planning to carry adults in back. Most first-generation A8s were sold with a 4.2-liter V8 and Quattro all-wheel drive. Thusly equipped, the A8 was one of the quickest large luxury sedans of its day, though the V8 was deficient in off-the-line torque. It was a comfortable car but not a particularly entertaining one due to overly soft suspension tuning. Audi also offered a less expensive front-wheel-drive model from 1997-'99. This rare A8 had a small 3.7-liter V8 and a modest 8.3-second 0-60 time.

User Reviews:

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  Horrible Experience - 2005 Audi A8
  By J Ortiz - March 1 - 3:24 pm

  I purchased a 2005 CPO A8L 6 months ago. From the day I drove it off the lot I have had nothing but trouble. From the minor (ie. remote keys didnt work) to the major items (ie. sunroof, power trunk, console buttons, water pump, head lamps, etc.) my vehicle has been in the shop a total of 3 weeks. The CPO checklist was a total misrepresentation. Most of the items that were bad on the vehicle were checked off as having passed a "rigorous" inspection. I have owned several other luxury new and used brands. But I never had this kind of trouble before. Truly a horrible experience. The final slap in the face is the trade value. All I want to do is trade out of this car but the values are way down.

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  Better than the rest - 2008 Audi A8
  By David - February 3 - 9:03 am

  Not unlike the rest of the reviews above I have owned most/all of the flagship vehicles. I am impressed by the smooth yet responsive ride, the interior room and the ease of electronic use. I looked at MBZ 500, BMW 7 series and the Lexus, either they were to vanilla or to cheap this is a beautiful car.

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  Oh yea - 2005 Audi A8
  By SSG T - January 31 - 10:58 am

  Just bought a used A8L Quatrro.Man This thing is fantastic. Never owned a luxury car before,and now I know what I have been missing. The soft market on these vehicles put them in reach for those of us with the "beer pocket". I am hooked. Handling is wonderful and the power from the 4.2 is plenty for any American highway. I had to study the owners manual while I sat in the car and go step by step over all the systems. There are a lot of buttons and dials and submenus to learn. If you buy one of these cars take the time to learn it inside and out. It will make the experience so much better

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  I love this car - 2005 Audi A8
  By mike - January 26 - 5:49 pm

  I bought a certified pre-owned 2005 A8L and have enjoyed every element of this car, from the handling to the styling. I will say that the cost of repairs is high, but probably comparable to others in its class. I had to replace a rear view mirror and one arm rest and was quoted $500 for each repair. I also had an issue with the automatic trunk not staying down. Thankfully my certified warranty covered these items. The car is truly a looker and I still get compliments. I have recently replaced the tires and it drives like new. I love this car.

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  A8L Great Car - 2009 Audi A8
  By cwkcpa - January 16 - 11:06 am

  This is my third A8 after coming out of a 2007 Q7 4.2. The Q was great also, but this new A8L is terrific. Audi has continued to refine the car and it handles and drives like a much smaller car. I have also had several Mercedes large sedans and the A8 is just as good or maybe better without being so obvious on the road. Great car.

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  Beautiful Car - 2009 Audi A8
  By Olayinka - January 7 - 2:31 am

  I have had this car for three months now. Really wanted to get a S550, but I am thrilled I ended up getting the A8L. It is a blast to drive, much sportier and understated. When I am buying my next car it will be another Audi A8L, each time I drive the car I am reminded why I love it.

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  Timeless Quality and Performance - 2008 Audi A8
  By Chod - December 19 - 8:46 pm

  Ive owned Lexus LS and SC430s, a MB E500, and test driven every BMW and MB over the past decade. The Audi A8 exudes a quiet confidence and athletic ability that places this sedan among the best in the world. Im always amazed by the incredible 26 MPG highway even though Im usually pushing 70-75mph in a serenely quiet yet totally responsive car. The MMI provides an intuitive control of audio, nav, car settings, and telephone that is simple yet sophisticated in performance. Handling is a dream with precise steering and a totally compliant suspension that seems to anticipate the movement of the car, rather than the bucking and fitfull suspensions that typically accoompanies a 2 ton sedan.

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  On my Second!!! - 2009 Audi A8
  By billyjo - December 10 - 4:04 pm

  After two 7 series BMWs, I am now on my 2nd A8L after trading in my 06!Few people noticed that I have a new car! Looked at S550, LS460L,750Li but nothing compared to the materials, ergonomics and ease of use as the Audi. Now have USB connection for flash drive with MP3s and somewhat improved dash display. I prefer the MMI to the Mercedes iCommand or the Lexus touch screen currently available. The previous MMI display had matte finish which matched the other materials and looked much nicer then the glossy bezel now used. Parktronic now has a camera in addition to the great graphic display. My previous proved very reliable with the Sirius Module being the only item which failed in 3 years.

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  Love Hate Relationship - 2004 Audi A8
  By PFraser - December 10 - 3:07 pm

  Most of the reliability issues owners have experienced are electronic problems. Interestingly, I have had major mechanical issues - transmission, suspension, cooling system and more. All these problems started right around 51K miles, just out of warranty! So far I have spent over $6,000 in repairs. About $4,500 of that is parts, because you wont find aftermarket parts for this car. If you are reading this review you are probably considering purchasing a used 2004. My best advice would be to get the best extended warranty you can. Get a warranty that has "stated exclusions" only, so you know exactly what will not be covered. With all that said, I really do love driving the car!

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  Couldnt be happier - 2009 Audi A8
  By Joe - November 28 - 6:14 pm

  The Audi A8 is the best car I have ever owned. I have owned Audis before and finally made the jump to the flagship. The only problem is that I could never go back to a lesser car. It drives like a dream, is simultaneously luxurious and sporty, does everything well, is unflappable under all road conditions, and has unquestionably the best interior in the automobile industry. I have driven it 600 miles at a stretch and didnt actually want to get out.