2021 Audi S8

in Sedans
2021 MODEL
  1. Home
  2. audi
  3. S8


Overall Rating




2021 Audi S8 Complete In-depth Review & Buying Guide

Updated on: August 6, 2020
Anant Vats's image

Anant Vats

Automotive Journalist

The all-new Audi S8 is indeed a masterpiece in the array of sedans that are to be introduced for the upcoming year. The complete elegance and authenticity it carries throughout its entire body and pure soul makes it a bit different from the normal sedans. Apart from the unaccustomed exteriors, the interior and other special packages in the various departments have made the 2021 Audi S8 more and more sophisticated and glaringly recognizable. The alluring performance and the stunning acceleration are added to the line of features that has made the S8 more captivating and competent among the rivals. 

The 2021 S8 will be competing with the notable opponents like BMW M760i, Maserati Quattroporte GTS and Porsche Panamera Turbo. The Audi S8 which was completely redesigned for the year 2020, will continue to have the same exterior designs and most interior features for the 2021 model. Also, the S8 is made available in one single trim level which is the 4.0 TFSI that costs $130,000. Here’s our take on the 2021 Audi S8 that’s soon going on sale in the US market.

See detailed review »


Equipped with latest technology

Comes standard with Quattro All-Wheel-Drive

Audi Virtual Cockpit Assistance


Less cargo space

What's New?

The 2021 Audi S8 is a carry forward version.

Pictures & Videos

2021 Audi S8 Review video


2021 Audi S8 in Seville Red Metallic color 2021 Audi S8 in Moonlight Blue Metallic color 2021 Audi S8 in Terra Gray Metallic color
Seville Red Metallic

Vehicle images are guides only and may not reflect the model's exact specifications/features– exact specifications/features should be confirmed with the seller.




Engine And Performance


Fuel Economy








Final Verdict




Trims and Configurations


2021 Audi S8 Base


563 hp @ 6000 rpm
Premium unleaded (recommended)
18 combined


Style Prices MPG Engine Transmission Drivetrain Seats Colors
4dr Sedan (4.0L 8cyl 8A) Starting at $130,900 MSRP (14/18/24) 563 hp @ 6000 rpm, 4 L, V-8, premium unleaded (recommended)
8 Speed Automatic all wheel drive 5

Expert Review


Overall Rating

The 2021 Audi S8 is an epitome of luxury and performance. The S8 gets a 4.0L TwinTurbocharged V8 engine, that pumps out 563 hp and 590 lb-ft of torque. It takes 3.8 seconds for the Audi S8 to cross the 60 MPH mark from a standstill and, which gives it a competitive advantage over its rivals. The S8 has a starting price of $130,000 and is a direct competitor to the likes of BMW M760i, Maserati Quattroporte GTS and Porsche Panamera Turbo.



Engine and Performance


Fuel Economy








Final Verdict


2021 Audi S8 Features


The 2021 Audi S8 is expected to have an enthralling performance and more exciting features like the 2020 model. In reference to the 2020 model year, the upcoming Audi S8 will be made available in one trim level, 4.0 TFSI. The expected price for the 2021 model is $130,000. The 2020 model incorporated features like blind-spot monitoring system, adaptive suspension and smart device integrating technologies like Apple CarPlay and Android Auto. For the year 2021, Audi is planning to add ingredients like heated and ventilated front seats and power driver & passenger seats.


Audi S8 4.0 TFSI



Key features 

Quattro sport rear differential


Panoramic sunroof with eliminated sunshades


Four-zone automatic climate control


20 inches 5 double-spoke alloy wheels


Bang and Olufsen 17 speaker premium audio system 

Since the 2021 Audi S8 has only one trim, 4.0 TFSI, a maximum number of advanced technologies and amenities are included in it. Starting with a base price of $130000 which is likely to be increased, S8 proves to be quite expensive. 

2021 Audi S8 Maintenance, Reliability and Warranty

The 2021 Audi S8 starts with a base price of $130,000, actually meets an increase and decrease in the price in different regions. Even though the sedan is highly expensive, it does provide an acceptable wide range of safety and reliability features in it. 

Reliability and Ownership Costs

The reliability of a car is of utmost importance to a buyer as it involves a huge investment. J.D.Power has not rated the S8 due to its low sales volume. However, it has been given a predicted reliability rating of 3.5 out of 5 by the consumer agencies.

Even though the standard base price of the Audi S8 is $130,000, there are variations in the price of the same car in different places. Like, in Washington, the cost of the Audi S8 starts from $141,305. While, at the same time and for the same model, in New Jersey, it is sold for $138,350. So according to the places, the price and ownership costs also vary.







New jersey 




No recalls have been issued for this sports sedan which brings peace of mind to the buyers. All S8 made go through stringent quality checks before coming out of the factory. Audi as a brand is known for its quality and reliability and one can expect no less in its premium sports sedan.


Audi keeps client satisfaction, it's the utmost priority. In order to enhance the ownership experience, Audi S8 comes with a basic warranty of 4 years or 50,000 miles and 12 years of corrosion warranty. The after sales service of Audi is one great experience itself. The dealership network is widely spread and spares are easily available. 



Basic warranty 

4 years/ 50000miles, whichever is earlier

Corrosion warranty 

12 years/ Unlimited miles, whichever is earlier

Drivetrain warranty 

4 years/ 50000miles, whichever is earlier

Roadside assistance 

4 years/ Unlimited miles, whichever is earlier

Buying such an expensive sedan will create a frightening trauma for many of the customers about the maintenance as well. Audi has clearly made a solution to this problem by providing a 4year/unlimited roadside assistance. Also, Audi has made sure that a one-year maintenance plan is also added in the section as well.

Miles per Dollar

Over a span of 5 years, the true cost to own an Audi S8 comes to about $104,167. With a driving mileage of 15,000 miles per year, the maintenance and repair cost for Audi S8 is about $15,725, which in turn brings the miles per dollar cost to about 4.76 miles per $1. 

2021 Audi S8 Buying Advice

The 2021 Audi S8 is indeed a luxurious and comfy sedan starting with a base price of $130,000 or more. Available in one single trim there are no other options to consider. Although the purchase of the Audi S8 might feel like a nightmare because of the heavy price, it does extend maximum facilities and features in it. So buying a new S8 is indeed worth buying and is also good for the money.

Is buying a used Audi S8 a good idea?

Buying a used Audi S8 can be a fruitful decision. Audi’s have a reputation for making reliable cars and being a part of the Volkswagen group, it is also easy to maintain. All the spare parts are easily available, in case the car needs any kind of major repairs.

According to the survey, a used 2015 Audi S8 can prove to be of the best value. You can buy a used 2015 model in just over $40,000, and considering that not much has changed under the hood, the performance of the S8 will still be as significant. You can also check out the Carindigo inventory for a used Audi S8 to find out more lucrative deals. 

2021 Audi S8 Engine and Performance


The 2021 Audi S8 is equipped with a highly efficient engine and its performance is outstanding. S8 shows how a luxury sedan should accomplish the needs and wants of the buyer. 

What engine is under the hood of the 2021 Audi S8?

The 2021 Audi S8 is equipped with a strong and powerful 4.0L twin-turbo V8 engine which is capable of delivering a power of 563hp and a torque of 590lb-ft with the All-Wheel Drivetrain and 8-speed automatic transmission. The engine is placed in the hot V between the cylinders to generate a short flow of gas which thereby increases the throttle responses. 


2021 Audi S8 4.0 TFSI

2020 BMW M760i

2020 Maserati Quattroporte GTS

2020 Porsche Panamera Turbo







4.0L Twin Turbo V8

6.6L Twin Turbo V12

3.8L Twin Turbo V8

4.0L Twin Turbo V8







8 speed automatic 

8 speed automatic 

8 speed automatic W/OD auto manual 

8 speed auto shift manual W/OD auto manual 

Power hp@rpm 

563 hp@6000 rpm

600hp @5500rpm

523hp @6800rpm

550hp @5750rpm

Torque lb-ft@rpm

590lb-ft @2000rpm

627lb-ft @1550rpm

524lb-ft @3500rpm

567lb-ft @1960rpm

Regardless of the price of the sedan, BMW M760i offers the maximum power and torque among its rivals. With a power output of 600 hp, the BMW M760i leads the segment. The Audi S8, might not seem as aggressive as the Beemer, however, the story is a bit different, when it comes to proving the potential. 

2021 Audi S8 Acceleration and Braking performance

Equipped with a 4.0L turbo inline V8 engine, the 2021 Audi S8 is capable of gaining 0-60 MPH in just 3.8 seconds and can reach quarter-mile in 11.9 seconds. From the data, it is clear that the Audi S8 is a speedy sedan in the array. Speaking of the brake rotors, the strong and hard brakes are more efficient and are capable of making the sedan come to a still position in a short distance than most of its competition.


2021 Audi S8 4.0 TFSI (Expected)

2020 BMW M760i

2020 Maserati Quattroporte GTS

2020 Porsche Panamera Turbo


3.8 secs

3.5 secs

4.7 secs

3.3 secs

Quarter mile 

11.9 secs


12.9 secs

11.7 secs

Top speed 

155 MPH

155 MPH

179 MPH

188 MPH


105 ft

109 ft

103 ft

104 ft

Porsche Panamera Turbo is quietly the speedy vehicle that is capable of gaining 0-60 in just 3.3 seconds. Also, it beats all others in the line-up. Speaking of the braking performance of the sedans in the array, Porsche Panamera Turbo is well equipped with the most powerful and strong brake rotors than the other sedans which make it come to a standstill from 60mph in 104ft. 

2021 Audi S8 Fuel Economy


The 2021 Audi S8 doesn’t have the most frugal engine of the lot, however it does a fair job on the highways. The S8 is capable of doing 22 MPG on the highways and 13 MPG in the city driving conditions. It does a combined mileage of 16 MPG, which is a competitive number in comparison to its rivals. The fuel tank is efficient at holding 21.7 gallons in it. 


2021 Audi S8 4.0 TFSI

2020 BMW M760i

2020 Maserati Quattroporte GTS

2020 Porsche Panamera Turbo

MPG City 





MPG highway 





MPG combined 





Fuel tank capacity 

21.7 gallons

20.6 gallons

21.1 gallons

23.7 gallons

Range (city/hwy/combined)

282/477/347 miles

268/412/329 miles

317/464/358 miles

427/593/497 miles

Porsche Panamera Turbo seems to be the most fuel-efficient sedan in the segment. The Panamera does an amazing 18 MPG in the city traffic conditions and 25 MPG on the highways. This gives the Porsche a combined mileage of 21 MPG. The Audi S8 and BMW M760i have almost similar fuel efficiencies.

2021 Audi S8 Interior


The 2021 Audi S8 still gets a luxurious interior and all kinds of high tech gadgetry to play with. The conventional buttons have been replaced with motion sensors and touch panels. Moreover, the S8 also provides the best cabin space in comparison to its rivals. 

Some of the notable interior features are four-zone climate control, active climate control, dual-pane acoustic glass, heated 4-spoke steering wheel with shift paddles, ambient LED lighting, heated and ventilated front seats, 22-way power comfort sport front seats, air quality check, Audi’s signature virtual cockpit assistance, and power tilt & telescopic adjustable steering column. 


2021 Audi S8 4.0 TFSI (Expected)

2020 BMW M760i

2020 Maserati Quattroporte GTS

2020 Porsche Panamera Turbo

Seating capacity 





Front (headroom/ shoulder room/ legroom) (in)

38.3/ 59.1/41.5




Rear (headroom/ shoulder room/ legroom) (in)





Except for Porsche Panamera Turbo, all cars in the comparison offer seating versatility for five passengers. Since the room space details are not available for the Maserati Quattroporte GTS and Porsche Panamera Turbo, we can make a contrast between the remaining two. In terms of luggage capacity, Maserati Quattroporte GTS has the largest trunk space, and the all-wheel-drive system of the Audi S8 robs the trunk space. 

How is the 2021 Audi S8 infotainment system?

The infotainment system inside the 2021 Audi S8 sedan is indeed excellent and functioning. The user-friendly MMI touch screen allows you to scroll and select your favorite music and other entertainment radio stations, thus helping you relax a bit while driving. 

Other than this there are a number of features that add to the list of the infotainment features of the 2021 S8. Some of them are Apple CarPlay, Android Auto, voice control, Audi connect, easily customizable and accessible Audi virtual cockpit, Bang & Olufsen premium sound system with 17 speakers, HD radio, Sirius XM, phone box and Homelink. Apart from the standard infotainment features, there are more in the upcoming S8, like, rear seat connectivity with 10.1 inches Audi tablets and USB ports. Also, the rear seat facilitates a 5.7 inch OLED touch display remote to control the infotainment features for the rear side. 

2021 Audi S8 Exterior


Like the interior features, the 2021 Audi S8 also has a delicate and magnificent design philosophy. The laser-sharp focus by the HD Matrix-design Audi high beam lights gives it a sharp and sophisticated look. Also, the available OLED rear ambient lighting adds to the exterior looks. The iconic single-frame grille with platinum double slats gives it a sporty appearance.

Apart from these features, some of the other exterior aspects include 20inches 5-double spoke S design wheels, S model exhaust vents, LED taillights and headlights with dynamic indicators, power-folding side mirrors, aluminum optic exterior side mirrors, power soft closing doors and power trunk open & close.


2021 Audi S8 4.0 TFSI

2020 BMW M760i

2020 Maserati Quattroporte GTS

2020 Porsche Panamera Turbo

Curb weight 

5302 lbs

5159 lbs

4189 lbs

4398 lbs
















Ground clearance










Audi S8 is the heaviest sedan in the array when compared to the rivals. Also, it is the lengthiest, broader and tallest sedan than others in the line-up. BMW M760i beats others in terms of wheelbase. Porsche Panamera Turbo has the least wheelbase among the competition.

2021 Audi S8 Safety

While giving heed to the beauty aspects, the 2021 Audi S8 didn’t forget to take a look at its safety measures which is the most important thing when it comes to the vehicles. Some of the most outstanding security and safety features that are found in the 2020 S8 are Advanced 9 airbag protection system, illuminated safety belt buckles, front passenger seat occupant detection, Electronic Stability Control with secondary collision brake assist & track control, rearview camera. We expect more driver assistance and collision prevention systems to be made standard in the upcoming model.

2021 Audi S8 Competition


2021 Audi S8 vs BMW M760i

BMW M760i is the most expensive and powerful vehicle between the two. Audi S8 offers a V8 but M760i comes with a V12 and still it manages to post comparably similar fuel economy figures. Audi infotainment system is quite intuitive and easy to use unlike BMW's iDrive infotainment system. BMW offers a significantly high amount of interior space than the S8. Between the two, BMW is a better choice if you don't take price into consideration.

2021 Audi S8 vs Maserati Quattroporte GTS

Maserati offers a slightly reduced performance than the S8 owing to its smaller engine capacity. It might be slower than the S8 but it has the best braking performance thanks to its large and powerful brake rotors. Some credit can be attributed to its aerodynamic design and lower curb weight too. Maserati offers comparably more premium interiors than the S8. It also costs significantly less than the S8. Between the two, Quattroporte GTS makes for a better choice.

2021 Audi S8 Final Verdict


2021 Audi S8 is indeed a premium choice when it comes to sedans. But the truth is that there are better ones parked near this. Audi S8 does have only one single trim level and you can't access for more. But in that 4.0 TFSI trim, Audi has managed to provide the maximum features which are available in its rivals too. But you will get to have a high-class luxury sports sedan at your home for just $130,000. Since it is the least expensive than other rivals except for Maserati Quattroporte GTS. Audi S8 is quite popular and reliable which makes it totally worth the money and wait.