2018 Audi S8

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Key Specs
Our Take
Overview
Photos
Reviews
Safety & Recalls
Warranty & CPO
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Key Specs

of the 2018 Audi S8. Base trim shown.

  • Body Type:
  • Combined MPG:
    18 Combined MPG
  • Engine:
    605-hp, 4.0-liter V-8 (premium)
  • Drivetrain:
    All-wheel Drive
  • Transmission:
    8-speed automatic w/OD and auto-manual
  • View more specs

Our Take

From the Cars.com Vehicle Test Team

The Good

  • Elegant, understated styling
  • High-quality interior
  • Powerful acceleration
  • Quiet cabin
  • Comfortable seats, front and back

The Bad

  • T-handle gear selector operation
  • Small trunk for such a big car
  • Brake squeal

Notable Features of the 2018 Audi S8

  • Premium luxury Sports sedan
  • Twin-turbo V-8 engine
  • All-wheel drive standard
  • Adjustable drive modes
  • Bang & Olufsen audio system available

2018 Audi S8 Overview

By Cars.com Editors
Vehicle Overview

What it is: Fortified with a 605-horsepower, twin-turbo 4.0-liter V-8 engine, the S8 is the hot rod of the A8 line. It comes with an eight-speed automatic transmission, all-wheel drive, an adaptive suspension and driver-selectable settings for the steering and suspension. Rivals include the Mercedes AMG S63 and BMW Alpina B7.

What's Special
  • Black leather upholstery with red stitching
  • 21-inch wheels
  • Available full-leather interior
  • Adaptive air suspension with lowered ride height
  • Available Bang & Olufsen premium sound system
Here's Info on the Regular A8:
What it is: The A8 is Audi's flagship sedan and is available with a choice of two gasoline engines: a supercharged V-6 or a turbocharged V-8. Competitors include the BMW 7 Series, Mercedes-Benz S-Class and Lexus LS. A performance model, the S8, is available, and a redesigned A8 sedan arrives in 2018 as a 2019 model. 
New for 2018

There are no significant changes.


Latest 2018 S8 Stories

Consumer Reviews

Safety & Recalls

Recalls

The 2018 Audi S8 currently has 0 recalls

Crash and Rollover Test Ratings

The 2018 Audi S8 has not been tested.

Manufacturer Warranties

Backed by Audi
New Car Program Benefits
  • Bumper-to-Bumper

    48 months / 50,000 miles

  • Powertrain

    48 months / 50,000 miles

  • Roadside Assistance

    48 months / unlimited distance

Certified Pre-Owned Program Benefits
  • Maximum Age/Mileage

    5 model years or newer/less than 60,000 miles

  • Basic Warranty Terms

    1 year/unlimited miles after expiration of new vehicle limited warranty or from date of sale if the new vehicle limited warranty has expired

  • Powertrain warranty

    N/A

  • Dealer Certification Required

    300-plus-point inspection

  • Roadside Assistance

    Yes

  • View All Program Details

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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