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Used 2018 Audi S8
MSRP: $115,900

  • Standard turbocharged V8 provides immense power
  • All-wheel drive ensures rapid acceleration
  • Clean design and high-quality materials throughout the cabin
  • Drives and handles like a much smaller sedan
  • Standard music interface isn't as versatile as a USB port
  • Not as much trunk space as you might expect for a car of its size
Select a trim

Which S8 does Edmunds recommend?

The 2018 Audi S8 is only available in the Plus trim. As such, picking an S8 just comes down to what options you want. The Executive Plus is an obvious choice since it adds extra safety features that you'll likely appreciate having, such as lane departure warning and forward collision warning. We'd take the Dynamic package, too. It's more for the bragging rights associated with owning a sedan with a 190 mph top speed rather than any particular benefit coming from the package's carbon-ceramic brakes.

Edmunds' Expert Review

Overall rating

Few sedans are more powerful than the 2018 Audi S8. With 605 horsepower courtesy of its twin-turbocharged 4.0-liter V8 and an optional 190 mph top speed, the S8 falls into an elite group. Combined with standard all-wheel drive, the resulting acceleration can make some supercars envious.

As preposterous as its abilities may seem, the S8 remains an understated machine. It is a flagship luxury sedan, after all, and in this role comfort is as big of a priority as performance. Like the A8 on which it's based, the S8's interior boasts extensive leather upholstery and attractive materials throughout. From its smooth-riding air suspension to its extensive number of standard features, the S8 delivers on every front.

Audi S8 models

The 2018 Audi S8 is a full-size, high-performance luxury sedan that is available only in Plus trim. It employs a turbocharged 4.0-liter V8 (605 horsepower, 517 pound-feet of torque) that is connected to an eight-speed automatic transmission. All-wheel drive is standard.

As Audi's flagship sedan, the S8 comes well equipped with standard features, including 21-inch wheels, a sport-tuned adaptive air suspension, LED exterior lighting, a top-down parking camera system, parking sensors, blind-spot monitoring, a panoramic sunroof, a power trunklid and soft-close doors. Interior amenities include keyless entry and ignition, a head-up display, diamond-stitched leather seating, four-zone climate control, 22-way power-adjustable front seats (with massage, heating, and ventilation), and power rear window sunshades. The infotainment system is accessed through an 8-inch retractable center display, and it's supported by a 14-speaker Bose surround-sound system. Satellite radio is included, but the S8 continues to have Audi's proprietary music interface instead of a regular USB port.

Last year's Cold Weather and Driver Assistance packages have been combined into the Executive Plus package, which includes lane departure warning and intervention, traffic-adaptive cruise control, forward collision warning and mitigation, a heated steering wheel, heated rear seats and rear-seat pass-through. The Dynamics package fits the S8 with carbon-ceramic brakes and increases the car's top-speed limiter to 190 mph.

Notable stand-alone options include a night-vision camera system and a 19-speaker Bang & Olufsen sound system. The rest of the S8's packages are related to customizing the sedan's color and trim combinations.

Trim tested

Although we've driven the related A8 sedan, Edmunds has not yet driven any version of this vehicle. The following is our first take on what's significant about it and what you can expect.


Combining an absurd amount of power with the refinement one expects from an executive luxury sedan makes for a highly enjoyable, if unusual, driving experience. Whether you're cruising along on the freeway or facing a red light with an empty street ahead, the Audi S8 always delivers satisfaction.


The adaptive air suspension deftly balances sporty handling with a smooth ride. We also like the heated front seats that offer 22-way adjustment and massage. Rear occupants will appreciate the additional adjustment provided by four-zone climate control.


Though its design is a few years old, the S8's interior still displays an attention to detail and cohesion in design. If a surface isn't high-quality leather or an attractive trim piece, it's probably simulated suede. And it's all customizable.


A power, hands-free trunk makes it easy to load and unload, though the S8's 14.2 cubic-foot trunk isn't particularly generous for this class of car. The interior boasts plenty of cubbies and pockets for smaller personal items.


The S8's MMI infotainment system is reasonably easy to use, but it's dated compared to the latest version of MMI available on other Audi vehicles. The proprietary music interface isn't nearly as versatile as having a USB port to plug in your phone. Android Auto and Apple CarPlay are not available.

Consumer reviews

There are no consumer reviews for the 2018 Audi S8.

Trending topics in reviews

    Used Years for Audi S8

    Features & Specs

    plus quattro 4dr Sedan AWD features & specs
    plus quattro 4dr Sedan AWD
    4.0L 8cyl Turbo 8A
    MPG 14 city / 24 hwy
    Seats 5
    8-speed shiftable automatic
    605 hp @ 6100 rpm

    See all Used 2018 Audi S8 features & specs


    Our experts like the S8 models:

    Adaptive Cruise Control with Stop & Go
    Keeps pace with the vehicle ahead of you as traffic dictates.
    Side Assist
    Watches for traffic in the places you can't see and warns you before a lane change if needed.
    Active Lane Assist
    Helps steer the vehicle back into the lane if it senses an unintended departure.
    Is the Audi S8 a good car?
    The Edmunds experts tested the 2018 S8 both on the road and at the track. You probably care about Audi S8 fuel economy, so it's important to know that the S8 gets an EPA-estimated 18 mpg. What about cargo capacity? When you're thinking about carrying stuff in your new car, keep in mind that the S8 has 14.2 cubic feet of trunk space. And then there's safety and reliability. Edmunds has all the latest NHTSA and IIHS crash-test scores, plus industry-leading expert and consumer reviews to help you understand what it's like to own and maintain a Audi S8. Learn more
    Is the Audi S8 reliable?
    To determine whether the Audi S8 is reliable, read Edmunds' authentic consumer reviews, which come from real owners and reveal what it's like to live with the S8. Look for specific complaints that keep popping up in the reviews, and be sure to compare the S8's average consumer rating to that of competing vehicles. Learn more
    Is the 2018 Audi S8 a good car?
    There's a lot to consider if you're wondering whether the 2018 Audi S8 is a good car. Safety scores, fuel economy, cargo capacity and feature availability should all be factors in determining whether the 2018 S8 is a good car for you. Check back soon for the official Edmunds Rating from our expert testing team Learn more
    How much should I pay for a 2018 Audi S8?

    The least-expensive 2018 Audi S8 is the 2018 Audi S8 plus quattro 4dr Sedan AWD (4.0L 8cyl Turbo 8A). Including destination charge, it arrives with a Manufacturer's Suggested Retail Price (MSRP) of about $115,900.

    Other versions include:

    • plus quattro 4dr Sedan AWD (4.0L 8cyl Turbo 8A) which starts at $115,900
    Learn more
    What are the different models of Audi S8?
    If you're interested in the Audi S8, the next question is, which S8 model is right for you? S8 variants include plus quattro 4dr Sedan AWD (4.0L 8cyl Turbo 8A). For a full list of S8 models, check out Edmunds’ Features & Specs page. Learn more

    More about the 2018 Audi S8

    A member of the exclusive "600-Plus-Horsepower Club," the 2018 Audi S8 distinguishes itself as a full-size luxury sedan, rather than as a raucous, fire-breathing sports car. While the S8's engine draws the most attention, Audi's flagship sedan gives away nothing in comfort, convenience and handling. The S8's advanced suspension makes it a legitimate world-class sport sedan, and its interior quality matches anything the competition offers.

    The S8's turbocharged V8 cranks out 605 hp and 517 pound-feet of torque. It's linked to an eight-speed automatic transmission with paddle shifters driving all four wheels through Audi's Quattro all-wheel-drive system. The S8 returns an EPA-estimated 18 mpg (15 city/24 highway).

    The sport-tuned, adjustable air suspension delivers impressive cornering ability for a large executive sedan. And though it can hold its own on a twisting road, the S8 is at its best on an open highway, where the suspension settles down for a smooth, comfortable and controlled ride.

    With typical design cues from the Audi family tree, the S8's exterior style may not captivate onlookers, but its spacious cabin rivals that of a private jet or European sports yacht. Leather, wood and other upscale materials abound, capped by features including heated and cooled front seats with massage functions, multizone automatic climate control and a premium sound system.

    Technology includes an easy-to-use infotainment system with navigation, a head-up display, Bluetooth connectivity and Audi Parking System Plus, which provides an overhead view of the car and sensors that warn the driver of nearby obstacles. The standard S8, available in only one trim level, is equipped so generously that most buyers won't need to add much. But those seeking increased performance and luxury features, or additional driver assistance systems, can choose from several packages and options.

    Whatever your preference, let Edmunds help you find the 2018 Audi S8 that best meets your needs.

    Used 2018 Audi S8 Overview

    The Used 2018 Audi S8 is offered in the following submodels: S8 Sedan. Available styles include plus quattro 4dr Sedan AWD (4.0L 8cyl Turbo 8A).

    What do people think of the 2018 Audi S8?

    Consumer ratings and reviews are also available for the 2018 Audi S8 and all its trim types. Edmunds consumer reviews allow users to sift through aggregated consumer reviews to understand what other drivers are saying about any vehicle in our database. Detailed rating breakdowns (including performance, comfort, value, interior, exterior design, build quality, and reliability) are available as well to provide shoppers with a comprehensive understanding of why customers like the 2018 S8.

    Edmunds Expert Reviews

    Edmunds experts have compiled a robust series of ratings and reviews for the 2018 Audi S8 and all model years in our database. Our rich content includes expert reviews and recommendations for the 2018 S8 featuring deep dives into trim levels and features, performance, mpg, safety, interior, and driving. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more.

    Our Review Process

    This review was written by a member of Edmunds' editorial team of expert car reviewers. Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors.

    We're also regular people like you, so we pay attention to all the different ways people use their cars every day. We want to know if there's enough room for our families and our weekend gear and whether or not our favorite drink fits in the cupholder. Our editors want to help you make the best decision on a car that fits your life.

    What's a good price for a New 2018 Audi S8?
    Which 2018 Audi S8s are available in my area?

    Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap new, used, or certified pre-owned (CPO) 2018 Audi S8 for sale near. Simply research the type of car you're interested in and then select a car from our massive database to find cheap vehicles for sale near you. Once you have identified a used vehicle you're interested in, check the AutoCheck vehicle history reports, read dealer reviews, and find out what other owners paid for the 2018 Audi S8.

    Can't find a new 2018 Audi S8s you want in your area? Consider a broader search.

    Find a new Audi S8 for sale - 3 great deals out of 18 listings starting at $11,424.

    Find a new Audi for sale - 6 great deals out of 19 listings starting at $20,682.

    Why trust Edmunds?

    Edmunds has deep data on over 6 million new, used, and certified pre-owned vehicles, including rich, trim-level features and specs information like: MSRP, average price paid, warranty information (basic, drivetrain, and maintenance), features (upholstery, bluetooth, navigation, heated seating, cooled seating, cruise control, parking assistance, keyless ignition, satellite radio, folding rears seats ,run flat tires, wheel type, tire size, wheel tire, sunroof, etc.), vehicle specifications (engine cylinder count, drivetrain, engine power, engine torque, engine displacement, transmission), fuel economy (city, highway, combined, fuel capacity, range), vehicle dimensions (length, width, seating capacity, cargo space), car safety, true cost to own. Edmunds also provides tools to allow shopper to compare vehicles to similar models of their choosing by warranty, interior features, exterior features, specifications, fuel economy, vehicle dimensions, consumer rating, edmunds rating, and color.

    Should I lease or buy a 2018 Audi S8?

    Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

    Check out Audi lease specials