VS
At a Glance
Power
362hp @ 5000
444hp @ 5900
Torque
406lb-ft @ 1370
442lb-ft @ 2700
Fuel
24 mpg est.
23 mpg est.
Engine
3.0 L/183ci
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 362hp @ 5000 while the Audi S6 produces 444hp @ 5900. On fuel, the A6 returns 24 mpg est. while the S6 uses 23 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $64,100 for the A6 and $80,200 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 A6Premium quattro 2026 - From $64,100
Audi S62.9 TFSI Premium Plus 2025 - From $80,200
Performance
Power Output (hp)
362hp @ 5000
444hp @ 5900
Torque (lb-ft)
406lb-ft @ 1370
442lb-ft @ 2700
Engine & Drivetrain
Engine Capacity
3.0 L/183ci
2.9 L/177ci
Engine Layout
V
V
Cylinders
6
6
Fuel Type
Gasoline
—
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic
Number of Gears
7
8
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
24 mpg est.
23 mpg est.
Fuel Economy - City (mpg)
20mpg
19mpg
Fuel Economy - Highway (mpg)
29mpg
27mpg
Fuel Tank Capacity (gal)
19.3gal
19.3gal
Dimensions
Length (in)
Coming Soon
195in
Width (in)
Coming Soon
74.3in
Height (in)
Coming Soon
56.9in
Wheelbase (in)
Coming Soon
115.3in
Curb Weight (lbs)
4310lbs
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
2 / 4 categories
Performance
S6
Fuel Economy
A6
Value
A6
Practicality
Tied
Pros & Cons
Audi A6
Better fuel economy (24 mpg est.)
Lower starting price ($64,100)
Few notable weaknesses
Audi S6
Well-rounded specification
Higher fuel consumption (23 mpg est.)
Higher starting price
Frequently Asked Questions
Which is more fuel efficient, the A6 or S6?
The A6 gets 24 mpg est. and the S6 gets 23 mpg est. on the combined cycle. The A6 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 362hp @ 5000 and 406lb-ft @ 1370 of torque while the S6 delivers 444hp @ 5900 and 442lb-ft @ 2700 of torque. The S6 is the more powerful option.
What is the price difference between the A6 and S6?
The A6 starts from $64,100 and the S6 from $80,200. The A6 is cheaper by $16,100 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