2021
Audi S4

Starts at:
$49,900
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New 2021 Audi S4
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Owner reviewed vehicle score
Not rated
Safety rating
NHTSA tested vehicle score
Consumer rating
Owner reviewed vehicle score
Not rated
Safety rating
NHTSA tested vehicle score
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Available trims

See the differences side-by-side to compare trims.
  • Premium 3.0 TFSI quattro
    Starts at
    $49,900
    20 City / 28 Hwy
    MPG
    5
    Seat capacity
    Intercooled Turbo Premium Unleaded V-6
    Engine
    All Wheel Drive
    Drivetrain
    See all specs
  • Prestige 3.0 TFSI quattro
    Starts at
    $49,900
    20 City / 28 Hwy
    MPG
    5
    Seat capacity
    Intercooled Turbo Premium Unleaded V-6
    Engine
    All Wheel Drive
    Drivetrain
    See all specs
  • Premium Plus 3.0 TFSI quattro
    Starts at
    $49,900
    20 City / 28 Hwy
    MPG
    5
    Seat capacity
    Intercooled Turbo Premium Unleaded V-6
    Engine
    All Wheel Drive
    Drivetrain
    See all specs

Photo & video gallery

2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4 2021 Audi S4

Notable features

A4 available as sedan or Allroad wagon
High-performance S4 comes only as sedan
Wireless Apple CarPlay now standard
All-wheel drive standard
Automatic emergency braking standard

The good & the bad

The good

Many standard features
Lots of front-seat space
Adult-friendly backseat
Strong brakes
Visibility

The bad

So-so handling
Accelerator lag in A4
Occasionally unresponsive transmission
Small glove compartment

Expert 2021 Audi S4 review

our expert's take
Our expert's take
By Cars.com Editors
Full article
our expert's take

What Is the 2021 Audi A4?

The Audi A4 is the German luxury brand’s rival to compact luxury cars like the BMW 3 Series, Mercedes-Benz C-Class and Cadillac CT4. Offered with standard all-wheel drive, the A4 comes with a choice of turbocharged four-cylinder engines and is available as a sedan or Allroad wagon. The performance-oriented S4 sedan gets a 349-hp, turbocharged 3.0-liter V-6. 

What’s New on the 2021 Audi A4?

The front-wheel-drive A4 has been discontinued, and both turbo four-cylinder engines get a 13-hp power boost, now rated at 201 and 261 hp. Wireless Apple CarPlay smartphone connectivity and lane departure warning are now standard. 

What Features in the 2021 Audi A4 Are Most Important?

Standard features include:

  • LED headlights with high-beam assist
  • 10.1-inch touchscreen
  • Leather seats
  • Heated front seats
  • Power moonroof

Available features include:

  • Keyless access
  • Audi Virtual Cockpit with 12.3-inch digital instrument panel
  • Adaptive cruise control
  • 360-degree camera system
  • Head-up display
  • Navigation
  • Bang & Olufsen premium stereo
  • Blind spot warning

Should I Buy the 2021 Audi A4?

The Audi A4 needs to be good to stand out among so many worthy rivals in the compact luxury car arena. While its turbocharged four-cylinder engines don’t have eye-popping power output, they’re remarkably smooth and deliver a great blend of performance and fuel efficiency. A 2020 makeover brought improvements to an already excellent cabin, including the welcome addition of a central touchscreen for the multimedia system. Rear-seat accommodations are fine for a pair of adults, but squeezing three people back there could be tough. 

2021 Audi S4 review: Our expert's take

What Is the 2021 Audi A4?

The Audi A4 is the German luxury brand’s rival to compact luxury cars like the BMW 3 Series, Mercedes-Benz C-Class and Cadillac CT4. Offered with standard all-wheel drive, the A4 comes with a choice of turbocharged four-cylinder engines and is available as a sedan or Allroad wagon. The performance-oriented S4 sedan gets a 349-hp, turbocharged 3.0-liter V-6. 

What’s New on the 2021 Audi A4?

The front-wheel-drive A4 has been discontinued, and both turbo four-cylinder engines get a 13-hp power boost, now rated at 201 and 261 hp. Wireless Apple CarPlay smartphone connectivity and lane departure warning are now standard. 

What Features in the 2021 Audi A4 Are Most Important?

Standard features include:

  • LED headlights with high-beam assist
  • 10.1-inch touchscreen
  • Leather seats
  • Heated front seats
  • Power moonroof

Available features include:

  • Keyless access
  • Audi Virtual Cockpit with 12.3-inch digital instrument panel
  • Adaptive cruise control
  • 360-degree camera system
  • Head-up display
  • Navigation
  • Bang & Olufsen premium stereo
  • Blind spot warning

Should I Buy the 2021 Audi A4?

The Audi A4 needs to be good to stand out among so many worthy rivals in the compact luxury car arena. While its turbocharged four-cylinder engines don’t have eye-popping power output, they’re remarkably smooth and deliver a great blend of performance and fuel efficiency. A 2020 makeover brought improvements to an already excellent cabin, including the welcome addition of a central touchscreen for the multimedia system. Rear-seat accommodations are fine for a pair of adults, but squeezing three people back there could be tough. 

Available cars near you

Safety review

Based on the 2021 Audi S4 base trim
NHTSA crash test and rollover ratings, scored out of 5.
Rollover rating
5/5
9.9%
Risk of rollover
9.9%
Risk of rollover

Factory warranties

New car program benefits

Basic
4 years / 50,000 miles
Corrosion
12 years
Powertrain
4 years / 50,000 miles
Roadside Assistance
4 years

Certified Pre-Owned program benefits

Age / mileage
5 model years or newer / less than 60,000 miles
Basic
1 year or 20,000 miles (whichever occurs first)
Dealer certification
125-point inspection

Compare similar vehicles

Select cars to compare for more detailed info.
  • 2021
    5.0
    Audi S4
    Starts at
    $49,900
    20 City / 28 Hwy
    MPG
    5
    Seat capacity
    Intercooled Turbo Premium Unleaded V-6
    Engine
    All-wheel drive
    Drivetrain
    Compare
  • 2020
    5.0
    Audi S3
    Starts at
    $43,000
    22 City / 29 Hwy
    MPG
    5
    Seat capacity
    Intercooled Turbo Premium Unleaded I-4
    Engine
    All-wheel drive
    Drivetrain
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  • 2025
    BMW M340
    Starts at
    $60,200
    27 City / 33 Hwy
    MPG
    5
    Seat capacity
    Intercooled Turbo Gas/Electric I-6
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  • 2022
    Audi S4
    Starts at
    $51,900
    21 City / 30 Hwy
    MPG
    5
    Seat capacity
    Intercooled Turbo Premium Unleaded V-6
    Engine
    All-wheel drive
    Drivetrain
    Compare

Consumer reviews

5.0 / 5
Based on 2 reviews
Write a review
Comfort 5.0
Interior 5.0
Performance 5.0
Value 5.0
Exterior 5.0
Reliability 4.5

Most recent

B9.5 S4 Solid car

Love this car. Had it for 3 years now. I would recommend getting a after market intake and intercooler.. stock is was to small.. they put in a a4 intercooler to s4 which cause some issues if you live in a hot state like I do.
  • Purchased a New car
  • Used for Commuting
  • Does recommend this car
Comfort 5.0
Interior 5.0
Performance 5.0
Value 5.0
Exterior 5.0
Reliability 4.0
1 person out of 1 found this review helpful. Did you?
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2021 Audi s4 B9.5

Love the styling, interior is one of the best for its class imo. I have it in daytona grey with black interior rock grey diamond stiches. response is great specially in dynamic mode. love the lil stock burbles. ill be probably getting its tuned soon to make it a lil more aggresive. (;
  • Purchased a New car
  • Used for Commuting
  • Does recommend this car
Comfort 5.0
Interior 5.0
Performance 5.0
Value 5.0
Exterior 5.0
Reliability 5.0
0 people out of 1 found this review helpful. Did you?
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FAQ

What trim levels are available for the 2021 Audi S4?

The 2021 Audi S4 is available in 3 trim levels:

  • Premium (1 style)
  • Premium Plus (1 style)
  • Prestige (1 style)

What is the MPG of the 2021 Audi S4?

The 2021 Audi S4 offers up to 20 MPG in city driving and 28 MPG on the highway. These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on vehicle options, trim level, driving conditions, driving habits, vehicle maintenance, and other factors.

What are some similar vehicles and competitors of the 2021 Audi S4?

The 2021 Audi S4 compares to and/or competes against the following vehicles:

Is the 2021 Audi S4 reliable?

The 2021 Audi S4 has an average reliability rating of 4.5 out of 5 according to cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Audi S4 owners.

Is the 2021 Audi S4 a good Sedan?

Below are the cars.com consumers ratings for the 2021 Audi S4. 100.0% of drivers recommend this vehicle.

5.0 / 5
Based on 2 reviews
  • Comfort: 5.0
  • Interior: 5.0
  • Performance: 5.0
  • Value: 5.0
  • Exterior: 5.0
  • Reliability: 4.5

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