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Follow-Up Test: 2007 Audi S8

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Road Test

Follow-Up Test: 2007 Audi S8

A masterpiece of cross-country travel

    1 Rating
    Audi thinks you need a vacation. That's why it gives you the 2007 Audi S8, the ideal sport sedan for a cross-country trip; even if you're traveling in the middle of winter.

    With a base price of $92,000, the Audi S8 is less expensive than that Winnebago Adventurer you've been considering. Its 450-horsepower 5.2-liter V10 engine combined with Audi's Quattro all-wheel-drive system promises to get you through the snow-covered passes of the Rocky Mountains and across the icy plains of the Midwest.

    Use the $30,000 you'll save for some nice, warm Ritz-Carltons along the way.

    A8 Luxury vs. S8 Sport
    The S8 is the Audi A8's athletic twin, and the truth is, the two big sedans aren't all that different. But when you're ready to put the pass play on the lumbering semi in front of you, the S8 quickly distinguishes itself.

    That's because there's the new FSI V10 under the hood, and the S8's driveline and aluminum chassis have been modified to handle the added power.

    The S8's Quattro four-wheel-drive system sends 40 percent of power to the front wheels and 60 percent to the rear under most driving, and it'll vary the split depending on conditions. Audi tells us that 72 percent of the cars it sells in the U.S. are equipped with all-wheel drive, and it has built 2.3 million vehicles with the Quattro system since the first Audi Quattro coupe went on sale in 1980.

    The A8's adaptive air suspension has been firmed up for the S8, and the steering ratio made slightly quicker to heighten the sport sedan experience.

    Driving character
    And heighten it does. Audi's speed-dependent, power-assisted steering is very precise for an all-wheel-drive car, and it gives you more feedback about what the car is doing than you'll find in the anesthetized Lexus LS 460.

    This is a long car with a 116-inch wheelbase, yet it feels as responsive as a much smaller package. Part of the reason lies in the all-aluminum chassis, an extremely rigid piece that comes from the same place that produces the platform for the Bentley Continental GT and Bentley Continental Flying Spur. It gives the S8 a uniquely solid feel.

    Based on your desire to explore the S8's limits, you can choose from four different suspension settings: Automatic, Dynamic, Comfort and Lift. We found there's not as much difference between the firmest and softest settings as you'll find in the standard A8 sedan.

    The S8 invites you to challenge freeway on-ramps, as the 265/35YR20 Yokohamas stay firmly planted on the pavement through the turns. At the test track, we threaded the 600-foot slalom course in Dynamic mode, hitting 68 mph during our best run.

    But across the flat lands, Comfort mode is the way to go, as there's enough road harshness to the S8's ride so performance settings can get tiresome quickly. When the road is open, the S8 is more at home. The combination of the S8's all-wheel drive, long wheelbase, and the V10 engine located far to the front of the car lends this package remarkable straight-line stability. As a result, the S8 makes you confident enough to keep up your cross-country speed even when the roads are slick and icy, so midwinter travel isn't intimidating.

    Track times
    Audi says the S8 will get to 60 mph in 4.9 seconds, but after five runs, 5.6 seconds was the best we could coax out of the big sedan.

    Despite the lightness of its aluminum shell and the smooth shifting action of the six-speed Tiptronic transmission, the Audi S8's hefty 4,277-pound curb weight prevents it from being as quick as a BMW M5, which sprints to 60 in just 4.8 seconds.

    Brake tests leveled the playing field, since both the S8 and the M5 come to a halt from 60 mph in 112 feet. But even with its admirable stopping power, the S8's brakes make the car feel clumsy around town. As the brake pads heat up in a light-effort stop, the braking action quickly increases and it's very difficult to stop smoothly. That's what you want during a high-speed stop on a foggy autobahn, but the grabby lack of linearity is irritating around town.

    Cross-country comfort
    From Nevada to New Hampshire, the S8's sporty, comfortable cabin never gets old. The S8's ergonomics are impeccable, and everything about the interior is logical, functional and — most important — natural. This is the sort of thing that makes this 450-hp sedan as easy to drive as a Honda Accord.

    Twelve-way power-adjustable front seats support the front passenger to satisfaction, and 37.6 inches of rear legroom allow the rear travelers to stretch out. Numerous storage compartments are tucked into the cabin, most lit with a soft white glow. CDs and iPod accessories are easily located, even during midnight runs.

    The selection of materials within the S8's cabin is top-notch, from the soft headliner to the $4,900 upgraded package of soft leather upholstery package with contrasting stitching. Audi's traditional red illumination for the instruments (friendly to night vision) adds another level of sporting function to the flawless clarity of Audi's instrument panel, and a healthy dose of carbon fiber and brushed metal replace the A8's stately wood trim.

    Audi's Multi Media Interface (MMI) system integrates the optional $6,300 Bang & Olufsen stereo and navigation system with the suspension control options, and it does so with simplicity that should be universally revered. There's no learning curve, no need for cursing or fumbling around through the owner's manual. The MMI system simply does what you ask immediately, with zero frustration.

    Adult fun
    Real-world performance in a sport sedan is not about how many g's you can pull on the freeway off-ramp; it's about how quickly you get from L.A. to New York, no matter the season. And that's what the Audi S8 delivers. More like a Bentley than a BMW, it's a confident, grown-up sport sedan that doesn't skimp on the fun, but doesn't tart itself up in the process.

    The manufacturer provided Edmunds this vehicle for the purposes of evaluation.

    Road Test

    Stereo Evaluation

    2007 Audi S8

    Overall Grade: B+

    Brand Name: Bang & Olufsen
    Watts: 1,100
    Speakers: 14
    Optional Equipment: Yes
    Price if optional: $6,300
    CD Player: In-dash CD changer
    Formats: CD, MP3, plus WMA, AAC without text support.
    Aux Jack: No
    iPod-Specific Connection: Yes — full integration through glovebox connection
    Hard Drive: No
    Bluetooth for phone: Yes
    Subwoofer: Yes

    How does it sound: B-
    We have a confession to make about the evaluation of the S8's audio system. We might have to recuse ourselves, as we were well aware of the price before we gave it a listen. That's a no-no. Our opinion was forever tainted by $6,300 worth of high expectations.

    Then again, anyone would have the same reaction.

    In a word, the B&O system sounds good, but not great. The bass is rich and deep, with the warmth and precision that reminds us of the Mark Levinson Reference Surround offered by Lexus, an audio system we consider to be one of the best in the business. Unfortunately, some music tracks caused the Audi's interior panels to buzz or rattle when the bass hit, despite the fact that each of the 14 speakers is housed in its own sealed cabinet. A little buzzing may be OK in a Dodge Caliber, but not in a $100,000 sedan.

    Midrange sounds good and rounds out the space nicely. Separation is impressive thanks to those 14 speakers, each with its own amplifier.

    The highs also add detail to the music, but sometimes they can be too much. The tweeters pop up out of the corners of the dash as the system is switched on — B&O says they're "precisely aligned." Sadly, the highs are exactly where distortion creeps in — the highs squeak or hiss on too many tracks and they do it consistently on many different types of music.

    We're not sure if it's because of the way the tweeters are aimed or the way the system as a whole is calibrated, but the sound is very much in your face and the highs can be taxing. It's good at first, but the wall of sound can begin to feel tedious after listening for awhile.

    How does it work: A
    Much of the credit for this audio system's ease of use is due to Audi's excellent Multi Media Interface or MMI. Whether you're navigating radio stations, playing CDs from the six-disc changer or even using your iPod, it's all intuitive and almost effortless. Adjusting the sound or various DSP (digital sound processing) settings is also easy thanks again to the MMI.

    At first it's a little hard to get used to scrolling the tuning wheel down in order to move up in track number, but we're sure Audi S8 owners will quickly adjust. The MMI is also especially welcome while listening to satellite radio, as artist, song title and channel name are all logically displayed.

    Special features: Audi offers an iPod-specific connection that includes a small storage compartment in the glovebox and full control of the device. It also charges the iPod while you listen. Artist, song or album info can be displayed through the MMI screen and you can let the system simply play through your library or a selected playlist. It's a great feature, but for some reason it's not possible to use one of the best iPod features — shuffle. The list nature of the MMI also makes it a little tedious to navigate through vast libraries. There's bound to be a better way to navigate what is essentially just a 30-gig hard drive.

    Conclusion: The only flaw in the Bang & Olufsen system lies in the price, as the sound quality doesn't live up to our expectations. The 12-speaker Bose system that's standard on the S8 is just fine, and you still get MMI and the option of an iPod connection. — Brian Moody

    Sort By:

    rlyon says:

    01:31 PM, 07/01/2010

    Why is the M5 being compared to the largest Audi? It should be compared to the 7 series.

    rlyon says:

    01:29 PM, 07/01/2010

    The S8 is SWB only that I'm aware of.

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    Speed Read

    Featured Specs

    • 450-hp 5.2-liter V10 engine
    • Quattro all-wheel drive
    • Bang & Olufsen stereo system

    What Works

    Smooth V10 engine, precise steering, elegant styling.

    What Needs Work

    Brakes get annoying around town.

    Tags

    Specs & Performance

    Vehicle
    Model year2007
    MakeAudi
    ModelS8
    StyleQuattro 4dr sedan AWD (5.2L 10cyl 6A)
    Base MSRP$92,720
    As-tested MSRP$110,920
    Drivetrain
    Drive typeAll-wheel drive
    Engine typeV10
    Displacement (cc/cu-in)5204cc (318 cu-in)
    Valvetraindouble overhead camshaft
    Compression ratio (x:1)12.5
    Horsepower (hp @ rpm)450 @ 7000
    Torque (lb-ft @ rpm)398 @ 3500
    Transmission type6-speed automatic
    Chassis
    Suspension, frontMultilink
    Suspension, rearMultilink
    Steering typeSpeed-proportional power steering
    Turning circle (ft.)39.7
    Tire brandYokohama
    Tire modelPerformance
    Tire typeperformance
    Tire size, front265/35ZR20 Z
    Tire size, rear265/35ZR20 Z
    Wheel size20 X 9.0
    Wheel materialalloy
    Brakes, frontFront ventilated disc - rear ventilated disc
    Brakes, rearventilated disc
    Track Test Results
    0-45 mph (sec.)3.6
    0-60 mph (sec.)5.6
    0-75 mph (sec.)8
    1/4-mile (sec. @ mph)13.8 @ 101.8
    Braking, 30-0 mph (ft.)27
    60-0 mph (ft.)112
    Slalom, 6 x 100 ft. (mph)68
    Skid pad, 200-ft. diameter (lateral g)0.87
    Sound level @ idle (dB)43.9
    @ Full throttle (dB)65.3
    @ 70 mph cruise (dB)79.1
    Test Driver Ratings & Comments
    Acceleration commentsBest launch was without brake torque, just mash it and go. Will not hold gear at redline, upshifts automatically in Sport mode. Engine sounds awesome, but elapsed time not terribly impressive.
    Braking ratingGood
    Braking commentsSolid pedal every stop with no fade. No change in performance. Impressive brake numbers for a car this size.
    Handling ratingGood
    Handling commentsRather slow steering doesn't hurt slalom performance. Stable and quick when accelerating. Well-controlled body motions and superb damping.
    Testing Conditions
    Elevation (ft.)1121
    Temperature (°F)55.1
    Wind (mph, direction)1.5
    Fuel Consumption
    EPA fuel economy (mpg)15 city/21 highway
    Edmunds observed (mpg)14.9
    Fuel tank capacity (U.S. gal.)23.8
    Dimensions & Capacities
    Curb weight, mfr. claim (lbs.)4,277
    Length (in.)199.3
    Width (in.)74.7
    Height (in.)56.1
    Wheelbase (in.)115.9
    Track, front (in.)63.8
    Track, rear (in.)63.3
    Legroom, front (in.)41.4
    Legroom, rear (in.)37.6
    Headroom, front (in.)37.3
    Headroom, rear (in.)38.0
    Shoulder room, front (in.)59.1
    Shoulder room, rear (in.)57.5
    Seating capacity5
    Cargo volume (cu-ft)15
    Max. cargo volume, seats folded (cu-ft)15
    Warranty
    Bumper-to-bumper4 years/50,000 miles
    Powertrain4 years/50,000 miles
    Corrosion12 years/Unlimited miles
    Roadside assistance4 years/Unlimited miles
    Free scheduled maintenanceNot available
    Safety
    Front airbagsStandard
    Side airbagsStandard dual front and dual rear
    Head airbagsStandard front and rear
    Knee airbagsdual front
    Antilock brakes4-wheel ABS
    Electronic brake enhancementsBraking assist, electronic brakeforce distribution
    Traction controlStandard
    Stability controlStandard
    Rollover protectionNot available
    Tire-pressure monitoring systemtire pressure monitoring
    Emergency assistance systemNot available
    NHTSA crash test, driverNot tested
    NHTSA crash test, passengerNot tested
    NHTSA crash test, side frontNot tested
    NHTSA crash test, side rearNot tested
    NHTSA rollover resistanceNot tested
    CollapseSpecs and Performance Expand Collapse

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