2021 Audi S4

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starting MSRP

Key specs

Base trim shown


Body style


Combined MPG


Seating capacity

187.5” x 56.2”


All-wheel drive



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

3 trims

Starting msrp listed lowest to highest price

Wondering which trim is right for you?

Our 2021 Audi S4 trim comparison will help you decide.

See also: Find the best Sedans for 2024

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

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. 

Consumer reviews

Rating breakdown (out of 5):
  • Comfort 5.0
  • Interior 5.0
  • Performance 5.0
  • Value 5.0
  • Exterior 5.0
  • Reliability 4.5
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Most recent consumer reviews


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.


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. (;

See all 2 consumer reviews


Based on the 2021 Audi S4 base trim.
Risk of rollover
Rollover rating


New car and Certified Pre-Owned programs by Audi
New car program benefits
48 months/50,000 miles
144 months/unlimited distance
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 or 20,000 miles (whichever occurs first)
Dealer certification required
125-point inspection
Roadside assistance
View all cpo program details

Have questions about warranties or CPO programs?

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Latest 2021 S4 stories

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