2021 Audi S6 Review: Expected Release Date, Prices, MPG, And Performance

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John Bedrow 

Automotive Journalist

July 14, 2020  at 1:48 PM

After the unveiling of the new fifth-gen Audi A6, the updated S6 surfaced only after a year. However, the new S6 was more refined, punchy, smooth, efficient as well as more easy-going. It packs everything that one seeks from a luxury sports sedan. However, still fresh in its early years, the S6 is mostly expected to be carried over for 2021. However, the 2021 Audi S6 is slated for revised standard equipment.

The ‘S” hooked ahead of Audi’s models perhaps says it all about the vehicle. A power and sport optimized variant of one of Audi’s popular products. The case is no different for the Audi S6 as well. A beefier avatar of one of Audi’s best-selling humble sedanS, the A6. Things certainly got even better with Audi’s “6” line-up with its fifth-generation upgrade in 2019. 

The fifth-gen Audi A6 got more sleek, elegant and better tech-loaded than all its previous iterations. The fifth-gen A6 based S6 was released only in 2020 though with better performance as usual over its regular sibling along with some distinct exterior and interior decoration. Still fresh in the line-up, the S6 would be soon entering its model but we suspect any changes though. Having said that, we take a close look at the 2021 Audi S6 here. 

What’s New?

  • Updated standard equipment for 2021

Expected Price and Release Date

While Audi is yet to make a comment on the release of the 2021 S6, we do expect the performance sedan to hit the stores somewhere towards the end of 2020. Since there are no major changes for the upcoming S6, prices should remain mostly identical with a small expected increase. The 2021 Audi S6 is mostly expected to start around $75,000.

What to expect in the engine department?

Audi never fails to impress its drivers, with a really well-balanced and powerful engine under its hood. Just the right ingredient, nothing too grand, nothing too small. The standard powertrain is a twin-turbocharged V6 that uses an electrical hybrid system for magnified performance. Mated with 8-speed automatic transmission, the engine produces 444 hp and 443 ft-lbs of torque. This is the same tried and tested powertrain though which is also deployed in the RS5 and new S7.

While the engine feels a bit out of place in the RS5, it seems just the right match for the S6’s overall character and proportions. There's adequate power always ready to pounce out making highway passings an easy task. The 8-speed automatic is quick and smooth and never feels in the wrong gear. Throttle response is almost instantaneous with very well restricted turbo-spool as well. Thanks to the 48-volt mild hybrid system accompanying the engine which reduces turbo lag and enhances torque delivery. 

Models

2021 Audi S6 (Expected)

2020 BMW M550i

2020 Mercedes-AMG E53

2020 Lexus GS F

Base MSRP

$75,000

$76,650

$73,800

$86,035

Engine

2.9-liter twin-turbo V6

4.4-liter twin-turbo V8

3.0-liter turbo inline-6

5.0-liter naturally aspirated V8

Transmission

8-speed automatic w/OD

8-speed shiftable automatic

9-speed shiftable automatic 

8-speed automatic w/OD

Power (hp @ rpm)

444 @ 6700

523 @ 5500

429 @ 6100

467 @ 7100

Torque (ft-lbs @ rpm)

443 @ 1900

553 @ 1800

384 @ 1800

389 @ 4800

0-60 (seconds)

4.4 

3.6

4.4

4.4

Quarter-Mile (seconds)

12.7

11.8

12.6

12.9

*2020 Data used for reference

The S6’s enthusiasm also shows on the sprint tests though. Running from 0-60 mph, a 2020 Audi S6 takes just 4.4 seconds. The number is exactly similar to those of its somewhat equally powered rivals like the Mercedes-AMG E53 and Lexus GS F. Among its rivals though, the BMW M550i outshines the other three quite comfortably. Not only is the Bimmer the most powerful in the lot here but also the quickest with a 0-60 timing of just 3.6 seconds.

How well does the 2021 Audi S6 handle?

The S6 drives just how a luxury sports car should, today the least. Take it out for a ride and the S6 would mesmerize you with its seamless dual-character. Inclined towards the relaxed and comfortable side, the S6 is your regular luxury sedan in the city with optimum comfort and grace. However, with the twin-turbo pot firing underneath, it unfolds its aggressive sporty side with just a squeeze of the pedal. 

Even on the upgraded 21’ inch rims, the S6 covers up potholes beautifully with minimal vibrations. The nicely-tuned adaptive dampers feel very balanced with the perfect amalgamation of sportiness and comfort. Around corners, the S6 feels poised and confident with very-well controlled body movements. You can also grab the optional steel-spring sport suspension which is a bit more on the stiffer side, but the standard dampers feel exactly in the right place on the S6. The S6’s energy is guided by an electromechanical power steering that has a good weight into it and is very precise and responsive as well. Overall, despite a sporting intent, the Audi S6 is a very-nicely tuned machine. It is apt-enough to cater to most of your daily driving needs with ease. 

Fuel Economy

With a strong sporting intent, sedans like the Audi S6 are not ideally expected to have great fuel-efficiency numbers. However, with the fifth-generation update of the A6, the new S6 incorporated a smaller 2.9-liter V6 which is not only more refined and responsive but also more efficient. The result of this change? Well, a 2020 Audi S6 delivers a 22 combined MPG which is significantly better than its class average. Well, that’s certainly more than adequate in a car that flashes 444 hp and races from 0-60 mph in just 4.4 seconds flat. 

Models

2021 Audi S6 (Expected)

2020 BMW M550i

2020 Mercedes-AMG E53

2020 Lexus GS F

MPG (city)

18*

18

21

16

MPG (highway)

28*

25

28

24

MPG (combined)

22*

20

24

19

Fuel tank capacity (gallons)

19.3*

18.0

21.1

17.4

Range (city/highway) (miles)

347.40/540*

324/450

443/590

278.40 / 417.60

*2020 Figures used for reference

Among its rivals though, the S6 shines with its decent fuel economy. While its mpg figures are better than the BMW and Lexus in the lot here, it trails only behind the Mercedes-AMG E53 which posts a class-leading fuel economy of 24 combined mpg. Thanks to Merc’s relatively less power alongside a refined and efficient transmission. 

What to expect from the Audi S6’s interior?

The 2020 Audi S6 underwent big changes than the previous year model. The dash is dominated by touch-screen displays and the 2020 model subtracts the presence of physical knobs, making it aesthetic but annoying for few. The Audi provides generous space and a roomy cabin for the passengers. The seats have Lacuna Leather upholstery and the interior of the S6 is indicative of exquisite craftsmanship and luxury. It amalgamates luxury and comfort to offer the passengers a fine user experience. Nothing less can be expected from the 2021 model. The interiors of the S6 no doubt resonate class, luxury, and comfort.

Models

2021 Audi S6 (Expected)

2020 BMW M550i

2020 Mercedes-AMG E53

2020 Lexus GS F

Passenger Capacity

5

5

5

5

Front Row(Head/Shoulder/Leg) (in.)

38/57.8/41.3*

38.8/58.7/41.4

37.3/57.8/41.7

38.9/57.2/40.6

Second Row(Head/Shoulder/Leg) (in.)

38.1/56.5/37.4*

37.5/55.9/36.5

38.2/57.1/36.2

37.8/55.7/32.8

Cargo Capacity (cu.ft.)

13.7

18.7

13.1

14.1

*2020 Model used for reference

The 2020 Audi S6 offers the same legroom space for the first row passengers in comparison to the BMW and Mercedes. However, the Audi wins the race for the legroom space for the second-row passengers. Overall, the Audi is quite spacious and fares almost similar to the Mercedes.

The Mercedes-AMG E63 offers the lowest cargo capacity, while the BMW M5 has the highest capacity to offer. The Audi S6 fares average in comparison to others with a cargo capacity of 13.7 cubic feet, only defeating the Mercedes in terms of cargo capacity.

Does 2021 Audi S6 come loaded with tech inside?

The 2020 base Audi S6 offers a 12.3-inch LCD screen for the driver which is Audi’s virtual cockpit gauge display. Well, the S6 is dominated by displays. It features a 10.1-inch touchscreen infotainment display and an 8.6-inch screen just below it. Audi has also emphasized on the removal of knobs, which few people might not be comfortable with.

It offers Android Auto, Apple CarPlay, and onboard Wi-Fi hotspot as standard features. The S6 also offers standard automated emergency braking with pedestrian detection and lane departure warning.

Few driver assistance technologies include a top-view camera system, rearview cameras, and cruise control. The Prestige trim offers more driver-assist tech like rear cross-traffic alert, vehicle exit warning, traffic sign recognition, and a head-up display.

Will there be any changes to the exterior of the 2021 Audi S6?

The design changes brought by Audi to their sedans are generally rare and moderate and the 2021 Audi S6 is expected to maintain its sharp look. The Audi S6 features a front grille with platinum double slats and LED lights with chrome strips running through them. Both trims equip stylist S-model quad exhaust outlets, matrix-design headlights, and rear-lip spoiler.

There is no official announcement regarding the changes to the exterior. However, the 2021 Audi S6 is likely to maintain its chic and elegant looks.

Models

2021 Audi S6 (Expected)

2020 BMW M550i

2020 Mercedes-AMG E53

2020 Lexus GS F

Curb Weight (lbs.)

4486*

4456

4341

4034

Length (in.)

195*

195.5

195.2

193.5

Width (in.)

74.3*

73.5

73.2

72.6

Height (in.)

56.9*

57.8

57.0

56.7

Ground Clearance (in.)

4.5

N/A

4.5

5.1

Wheelbase (in.)

115.3*

117.1

115.7

112.2

Track Width (in.) F/R

64.3/63.7*

64/62.8

64.9/62.8

61.2/61.4

*2020 Figures used for reference

The 2020 Audi S6 has an average-sized wheelbase in the segment and yet it manages to offer more space than the competition. Along with the Mercedes, the Audi also has a higher curb weight than the others. The Lexus GS F is the shortest vehicle while the Audi S6 fares almost similar to its competitors. It offers a ground clearance of 4.5 inches which is really low in comparison to other contenders.

Will the 2021 Audi S6 be worth my money and time?

The 2021 Audi S6 would definitely be worth every penny and your time. Looking at its price, it is capable of great performance, offers smooth and serene handling, and also offers a spacious interior and comfortable seating capacity for the passengers. 

It also fares as a fuel-efficient engine than its competitors but offers an ungenerous trunk capacity and really low ground clearance. The Audi S6 is a good option for a sporty sedan if you are looking for luxury, performance and are not looking to compromise on comfort. If you have a really flexible budget then the BMW M5 wins the race.

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