VS
At a Glance
Power
444hp
444hp @ 5900
Torque
443lb-ft
442lb-ft @ 2700
Fuel
23 mpg est.
23 mpg est.
Engine
2.9 L/177ci
2.9 L/177ci
Choosing between the Audi A6 and the Audi S6 is one of the most common decisions car buyers in the United States face. The Audi A6 delivers 444hp while the Audi S6 produces 444hp @ 5900. On fuel, the A6 returns 23 mpg est. while the S6 uses 23 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $74,400 for the A6 and $75,900 for the S6. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Specification
Audi A62.9 TFSI Premium Plus 2021 - From $74,400
Audi S62.9 TFSI Premium 2025 - From $75,900
Performance
Power Output (hp)
444hp
444hp @ 5900
Torque (lb-ft)
443lb-ft
442lb-ft @ 2700
Engine & Drivetrain
Engine Capacity
2.9 L/177ci
2.9 L/177ci
Engine Layout
V
V
Cylinders
6
6
Fuel Type
Hybrid
—
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic
Number of Gears
8
8
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
23 mpg est.
23 mpg est.
Fuel Economy - City (mpg)
18 (2020)mpg
19mpg
Fuel Economy - Highway (mpg)
28 (2020)mpg
27mpg
Fuel Tank Capacity (gal)
19.3gal
19.3gal
Dimensions
Length (in)
195in
195in
Width (in)
74.3in
74.3in
Height (in)
56.9in
56.9in
Wheelbase (in)
115.3in
115.3in
Curb Weight (lbs)
4486lbs
4519lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
✓ Standard
Sunroof
✓ Standard
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Audi A6
1 / 4 categories
Performance
Tied
Fuel Economy
Tied
Value
A6
Practicality
Tied
Pros & Cons
Audi A6
Lower starting price ($74,400)
Few notable weaknesses
Audi S6
Well-rounded specification
Higher starting price
Frequently Asked Questions
Which is more fuel efficient, the A6 or S6?
The A6 gets 23 mpg est. and the S6 gets 23 mpg est. on the combined cycle. The S6 is the more fuel-efficient choice. In real-world conditions with a mix of highway and urban driving, actual figures will be slightly higher.
Which has more power, the A6 or S6?
The A6 produces 444hp and 443lb-ft of torque while the S6 delivers 444hp @ 5900 and 442lb-ft @ 2700 of torque. They produce closely matched power outputs.
What is the price difference between the A6 and S6?
The A6 starts from $74,400 and the S6 from $75,900. The A6 is cheaper by $1,500 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the A6 or the S6?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.
Also Consider