Audi S4 vs Audi S6 Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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Expert Reviews Reviews from CarGurus experts.

2021 Audi S4
3.0T quattro Premium AWD
Cherise Threewitt Preview:

The Audi S4, the performance version of the A4 sedan, is part of a generation that dates back to 2018. Last year, the S4 received styling and tech updates, and this year, it carries ov...

2021 Audi S6
2.9T quattro Premium Plus Sedan AWD
Stephen Edelstein Preview:

Critics complain that the Audi S6 looks too understated, forgetting that some people don’t want to be noticed for what they’re driving. After all, there’s a reason a gray suit is still...

Specs

2021 Audi S4
3.0T quattro Premium AWD
2021 Audi S6
2.9T quattro Premium Plus Sedan AWD
Powertrain 8-Speed Automatic 8-Speed Automatic
Drivetrain
AWD
AWD
Fuel Economy, City
20 MPG
18 MPG
Fuel Economy, Highway
28 MPG
28 MPG
Fuel Tank Volume 15.3 gal 19.3 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
349 hp @ 5,400 RPM
444 hp @ 5,700 RPM
Torque
369 lb-ft @ 1,370 RPM
443 lb-ft @ 1,900 RPM
Cylinders
6 cylinders
6 cylinders
Compression Ratio
11.2:1
10:1
Displacement
3,000 cc
2,900 cc
Bore x Stroke
3.33 in x 3.5 in
3.33 in x 3.39 in
Safety
ABS Brakes Standard Standard
Driver Airbag Standard Standard
Passenger Airbag Standard Standard
Front Side Airbags Standard Standard
Curtain Airbags Standard Standard
NHTSA Crash Test Results
Comfort and Convenience
Sunroof/Moonroof Standard Standard
Leather Seats Standard Standard
Air Conditioning Standard Standard
CD Player Standard --
Radio Standard Standard
Power Windows Standard Standard
Power Door Locks Standard Standard
Driver Power Seats Standard Standard
Passenger Power Seats Standard Standard
Interior
Maximum Seating 5 seats 5 seats
Front Legroom 41.3 in 41.3 in
Back Legroom 35.7 in 37.4 in
Payload and Towing
Cargo Volume 12 cu ft 13.7 cu ft
Maximum Payload 1,058 lbs 1,102 lbs
Exterior
Length 187.5 in 195 in
Width 79.6 in 83.1 in
Height 56.2 in 56.9 in
Wheelbase 111 in 115.3 in

Available Options

2021 Audi S4
3.0T quattro Premium AWD

Exterior Colors

  • Daytona Gray Pearl Effect
  • Glacier White Metallic
  • Ibis White
  • Mythos Black Metallic
  • NAVARRA Blue Metallic
  • Quantum Gray
  • Tango Red Metallic
  • Turbo Blue

Option Packages

  • Carbon Fiber Package W/Side Assist
  • Carbon Fiber Trunk Lid Spoiler
  • Convenience Package
  • Sport Exhaust Resonator
  • Wheels: 19" 5-Arm-TORSIO Design
2021 Audi S6
2.9T quattro Premium Plus Sedan AWD

Exterior Colors

  • Avalon Green Metallic
  • Brilliant Black
  • Daytona Gray Pearl Effect
  • FLORETT Silver Metallic
  • Firmament Blue Metallic
  • Glacier White Metallic
  • Ibis White
  • Mythos Black Metallic
  • NAVARRA Blue Metallic
  • Tango Red Metallic
  • Vesuvius Gray Metallic

Option Packages

  • Audi Side Assist W/Pre Sense Rear
  • Black Optic Package
  • Luxury Package
  • S Sport Package
  • S6 Executive Package

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