2008 Audi S8

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(5.0) 2 reviews
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Key Specs
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Overview
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Key Specs

of the 2008 Audi S8. Base trim shown.

  • Body Type:
  • Combined MPG:
    16 Combined MPG
  • Engine:
    450-hp, 5.2-liter V-10 (premium)
  • Drivetrain:
    All-wheel Drive
  • Transmission:
    6-speed automatic w/OD and auto-manual
  • View more specs

Our Take

From the Cars.com Vehicle Test Team

The Good

  • Performance
  • Luxury features
  • Abundant safety features

The Bad

  • Overly boosted steering
  • Fuel economy

Notable Features of the 2008 Audi S8

  • 450-hp V-10
  • Based on A8 sedan
  • Standard AWD

2008 Audi S8 Overview

By Cars.com Editors
Vehicle Overview
Audi's S performance designation graces the automaker's largest sedan, the A8 flagship, in the form of the S8. The S8 is essentially the quickest A8 money can buy, and changes are few for 2008. Competitors include the Jaguar XJR and Mercedes-Benz S63 AMG.

It's hard to imagine a full-size luxury sedan moving quickly, but that's what the S8 does. Thanks to a 450-horsepower V-10, Audi claims it will scoot from zero to 60 mph in 4.9 seconds. The same engine powers Audi's S6, where it produces 435 hp.

For 2008, the S8 receives newly styled 20-inch wheels and new fog lights.


Exterior
Distinguishing features for the S8 include its 20-inch split-spoke alloy wheels, subtle deck lid spoiler and a deep grille with prominent lower side portals. Low-profile P265/35ZR20 performance tires are standard, and aluminum door sills wear an S8 badge. The adaptive air suspension is sport tuned.

Interior
Thanks to the S8 sedan's 115.9-inch wheelbase, interior dimensions are plentiful. In the S8, sport seats are available in dual-tone leather upholstery. Power adjustment is standard. The steering wheel has three spokes instead of four, and it's trimmed in matching leather. Carbon fiber trim is optional.

The windows are double-glazed for better insulation, and the armrests are upholstered in leather. An optional 1,000-plus-watt sound system by Danish audio company Bang & Olufsen includes 14 speakers.


Under the Hood
A 5.2-liter V-10 utilizes Audi's di...
Vehicle Overview
Audi's S performance designation graces the automaker's largest sedan, the A8 flagship, in the form of the S8. The S8 is essentially the quickest A8 money can buy, and changes are few for 2008. Competitors include the Jaguar XJR and Mercedes-Benz S63 AMG.

It's hard to imagine a full-size luxury sedan moving quickly, but that's what the S8 does. Thanks to a 450-horsepower V-10, Audi claims it will scoot from zero to 60 mph in 4.9 seconds. The same engine powers Audi's S6, where it produces 435 hp.

For 2008, the S8 receives newly styled 20-inch wheels and new fog lights.


Exterior
Distinguishing features for the S8 include its 20-inch split-spoke alloy wheels, subtle deck lid spoiler and a deep grille with prominent lower side portals. Low-profile P265/35ZR20 performance tires are standard, and aluminum door sills wear an S8 badge. The adaptive air suspension is sport tuned.

Interior
Thanks to the S8 sedan's 115.9-inch wheelbase, interior dimensions are plentiful. In the S8, sport seats are available in dual-tone leather upholstery. Power adjustment is standard. The steering wheel has three spokes instead of four, and it's trimmed in matching leather. Carbon fiber trim is optional.

The windows are double-glazed for better insulation, and the armrests are upholstered in leather. An optional 1,000-plus-watt sound system by Danish audio company Bang & Olufsen includes 14 speakers.


Under the Hood
A 5.2-liter V-10 utilizes Audi's direct fuel injection technology to produce 450 hp and 398 pounds-feet of torque. It's mated to a six-speed automatic transmission with Tiptronic manual shifting. In the S8, Tiptronic has been modified to allow for higher shift points and faster response. All told, the S8 accelerates a hair faster than even the 12-cylinder A8 W12, which costs substantially more.

Quattro all-wheel drive is standard.


Safety
Ten standard airbags include dual front airbags, front knee airbags, side curtain airbags and front and rear seat-mounted side-impact airbags. Four-wheel-disc antilock brakes and an electronic stability system are also standard.


Latest 2008 S8 Stories

Consumer Reviews

Exterior Styling
(5.0)
Performance
(5.0)
Interior Design
(4.5)
Comfort
(5.0)
Reliability
(5.0)
Value For The Money
(5.0)

What Drivers Are Saying

(5.0)

Raw Audi HP - S8

by Own it! from Minneapolis on April 29, 2018

The car is from 2008 and still has many features that are just coming available on new model cars. There are update available to help interior features online. (iPod adapter for newer phones) It would ... Read full review

(5.0)

A Flagship with Power and Style

by Olleb from California on September 11, 2017

It ja Top Early to day if that Audi S8 will be a Collectors Item. It ja the rate gem of Power and Elegance and represents one of the last great high powered limousine of the fossil burning area. 10 ... Read full review

Safety & Recalls

Recalls

The 2008 Audi S8 currently has 1 recall

Crash and Rollover Test Ratings

The 2008 Audi S8 has not been tested.

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Cars.com Car Seat Check

Certified child passenger safety technicians conduct hands-on tests of a car’s Latch system and check the vehicle’s ability to accommodate different types of car seats. The S8 received the following grades on a scale of A-F.*
* This score may not apply to all trims, especially for vehicles with multiple body styles that affect the space and design of the seating.

Warranty FAQs

What is a Bumper-to-Bumper warranty?

Often called a basic warranty or new-vehicle warranty, a bumper-to-bumper policy covers components like air conditioning, audio systems, vehicle sensors, fuel systems and major electrical components. Most policies exclude regular maintenance like fluid top offs and oil changes, but a few brands have separate free-maintenance provisions, and those that do offer them is slowly rising. Bumper-to-bumper warranties typically expire faster than powertrain warranties.

What is a Powertrain warranty?

Don't be misled a 10-year or 100,000-mile powertrain warranty doesn't promise a decade of free repairs for your car. It typically covers just the engine and transmission, along with any other moving parts that lead to the wheels, like the driveshaft and constant velocity joints. Some automakers also bundle seat belts and airbags into their powertrain warranties. With a few exceptions, powertrain warranties don't cover regular maintenance like engine tuneups and tire rotations.

What is included in Roadside Assistance?

Some automakers include roadside assistance with their bumper-to-bumper or powertrain warranties, while others have separate policies. These programs cover anything from flat-tire changes and locksmith services to jump-starts and towing. Few reimburse incidental costs like motel rooms (if you have to wait for repairs).

What other services could be included in a warranty?

Some automakers include free scheduled maintenance for items such as oil changes, air filters and tire rotations. Some include consumables including brake pads and windshield wipers; others do not. They are typically for the first couple of years of ownership of a new car.

What does CPO mean?

A certified pre-owned or CPO car has been inspected to meet minimum quality standards and typically includes some type of warranty. While dealers and third parties certify cars, the gold standard is an automaker-certified vehicle that provides a factory-backed warranty, often extending the original coverage. Vehicles must be in excellent condition and have low miles and wear to be certified, which is why off-lease vehicles feed many CPO programs.

See also the latest CPO incentives by automaker