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2025 Audi A6

S6 AWD

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What the S6 adds over the A6 Sedan 45 TFSI® quattro®

Spec	A6 Sedan 45 TFSI® quattro®	S6
Front brake diameter	337.8 mm	401.3 mm
Rear brake diameter	330.2 mm	350.5 mm
Curb weight (maximum)	4101 lbs	4486 lbs
Curb weight (minimum)	4101 lbs	4486 lbs
Cylinder count	4	6
Engine displacement	1984 cc	2894 cc
Horsepower	248 hp	444 hp
Torque	273 lb-ft	442 lb-ft
Engine type (full description)	2.0 TFSI®, 4 CYL	2.9 TFSI®, 6 CYL
Valve configuration	DOHC 16-Valve	DOHC 24-Valve
MPG (city)	24 mpg	19 mpg
MPG (combined)	26 mpg	22 mpg
MPG (highway)	31 mpg	27 mpg
Overall height	57.4 in	56.9 in
Overall length	194.4 in	195 in
Front suspension type	Five-link front independent steel spring suspension	Audi S-tuned adaptive air suspension
Rear suspension type	Five-link front independent steel spring suspension	Audi S-tuned adaptive air suspension
Tire size	245/45 R19	245/45 R20
Final drive ratio	4.4	2.8
Transmission speeds	7	8
Transmission type	Seven-speed S tronic® dual-clutch transmission and quattro® with ultra® technology	Eight-speed Tiptronic® transmission and quattro® all-wheel drive
Turning radius (curb-to-curb)	36.7 ft	40 ft
Wheel diameter	19 in	20 in
Wheelbase	115.1 in	115.3 in

Specifications

Source: manufacturer press kit

Brakes

Front brake diameter	401.3 mm
Front brake type	ventilated disc
Rear brake diameter	350.5 mm
Rear brake type	solid disc
Parking brake type	electro-mechanical

Cargo

Cargo volume behind 2nd row

13.7 cu-ft

Dimensions Exterior

Overall height	56.9 in
Overall length	195 in
Overall width	74.3 in
Wheelbase	115.3 in

Engine Basics

Aspiration	twin turbo
Cylinder count	6
Engine displacement	2894 cc
Engine type (full description)	2.9 TFSI®, 6 CYL
Valve configuration	DOHC 24-Valve

Engine Output

Horsepower	444 hp
Torque	442 lb-ft

Fuel Economy

MPG (city)	19 mpg
MPG (combined)	22 mpg
MPG (highway)	27 mpg

Fuel System

Minimum recommended octane	91
Fuel tank capacity	19.3 gal

Headroom

Front headroom	38 in
Third-row headroom	38.1 in

Legroom

Front legroom	41.3 in
Third-row legroom	37.4 in

Seating

Passenger seating capacity

Shoulder Room

Front shoulder room	57.8 in
Third-row shoulder room	56.5 in

Steering

Steering type	Electromechanical steering with speed-dependent power assistance
Turning radius (curb-to-curb)	40 ft

Suspension

Front suspension type	Audi S-tuned adaptive air suspension
Rear suspension type	Audi S-tuned adaptive air suspension

Tires

Tire size

245/45 R20

Transmission

Final drive ratio	2.8
Transmission speeds	8
Transmission type	Eight-speed Tiptronic® transmission and quattro® all-wheel drive

Weights

Curb weight (maximum)	4486 lbs
Curb weight (minimum)	4486 lbs

Wheels

Wheel diameter	20 in
Wheel material	alloy

Standard & optional equipment

Source: manufacturer press kit

Safety4 std · 0 opt

Anti-Lock Braking System: Standard, all four wheels, with electronic brake force distribution
Brakes: 13.3-inch front/13.0-inch rear brake discs / 14.7-inch front/13.0-inch rear brake discs / 15.8-in front discs/13.8-in rear brake discs / 16.5-in front discs/14.6-in rear brake discs
Parking Brake: Electro-mechanical
Stability Control: Standard Electronic Stability Control

Seating1 std · 0 opt

Seating Capacity: 5

Interior6 std · 0 opt

Head room, front (in): 38.0 / 38.0 / 38.3 / 38.0 / 38.3
Head room, rear (in): 38.1 / 38.1 / 39.5 / 38.1 / 39.5
Leg room, front (in): 41.3
Leg room, rear (in): 37.4
Shoulder room, front (in): 57.8
Shoulder room, rear (in): 56.5

Exterior10 std · 0 opt

Curb Weight (lbs): 4,101 / 4,266 / 4,486 / 4,486 / 4,982
Drag Coefficient: 0.28 / 0.29 / 0.29 / 0.29 / 0.36
EPA Class: Midsize Car AWD / Midsize Station Wagons
Height (in): 57.4 / 57.4 / 58.9 / 56.9 / 58.6
Length (in): 194.4 / 194.4 / 194.9 / 195.0 / 196.7
Overall width with mirrors (in): 83.1 / 83.1 / 83.1 / 83.1 / 83.5
Track, front/rear (in): 64.2/63.7 / 64.2/63.7 / 64.8/63.4 / 64.3/63.7 / 65.7/65.0
Wheelbase (in): 115.1 / 115.1 / 115.2 / 115.3 / 115.3
Wheels/Tires: 19" 5-arm dynamic design, platinum gray finish wheels with 245/45 R19 all-season tires / 20" 10-spoke-star design, bicolor finish wheels with 255/40 R20 all-season tires / 20" 10-V-spoke design, platinum gray finish wheels with 245/45 R20 all-season tires / 21" 5-V-double-spoke design, graphite gray finish wheels 255/35 R21 summer tires / 21" 5-V-spoke-dynamic design, bicolor finish wheels with 255/35 R21 summer tires / 21" 10-spoke star design wheels, silver finish with 275/35 summer tires / 22" 5-Y-spoke design wheels various finishes with 285/30 summer tires
Width without mirrors (in): 74.3 / 74.3 / 74.9 / 74.3 / 76.8

Powertrain18 std · 0 opt

Driven wheels: quattro® all-wheel drive
0-60 mph (sec): 6.1 / 5.1 / 4.4 / 5.1 / 3.3
Bore (mm): 82.6 / 84.6 / 84.6 / 84.6 / 85.9
City mpg (EPA-estimated): 24 / 22 / 22 / 19 / 14
Combined mpg (EPA-estimated): 26 / 25 / 25 / 22 / 17
Compression Ratio: 9.6 / 11.2 / 11.2 / 10.0 / 9.7
Cylinder head: Aluminum alloy, crossflow
Displacement (cc): 1984 / 2995 / 2995 / 2894 / 3996
Engine Arrangement: Front mounted
Engine Type: 2.0 TFSI®, 4 CYL / 3.0 TFSI®, 6 CYL / 3.0 TFSI®, 6 CYL / 2.9 TFSI®, 6 CYL / 4.0 TFSI®, 8 CYL
Fuel Tank (gal): 19.3
Highway mpg (EPA-estimated): 31 / 30 / 30 / 27 / 21
Horsepower (SAE): 248 / 335 / 335 / 444 / 621
Maximum torque, lb-ft: 273 / 369 / 369 / 442 / 627
Recommended Fuel: Premium
Stroke (mm): 92.7 / 89.0 / 89.0 / 86.0 / 85.9
Transmission: Seven-speed S tronic® dual-clutch transmission and quattro® with ultra® technology / Eight-speed Tiptronic® transmission and quattro® all-wheel drive
Valvetrain: 16-valve DOHC with Audi valvelift and variable timing (45 TFSI) / 24-valve DOHC with Audi valvelift and variable timing / 32-valve DOHC with Audi valvelift and variable timing (RS 6)

Chassis5 std · 0 opt

Front Suspension: Five-link front independent steel spring suspension / allroad air suspension / Audi S-tuned adaptive air suspension / Audi RS-tuned adaptive air suspension
Rear Suspension: Five-link front independent steel spring suspension / allroad air suspension / Audi S-tuned adaptive air suspension / Audi RS-tuned adaptive air suspension
Steering Ratio: 15.8:1 / 12.1:1 / TBC / 16.0:1 / TBD
Steering Type: Electromechanical steering with speed-dependent power assistance / Electromechanical steering with speed-dependent power assistance and Dynamic steering (RS 6)
Turning Circle (ft, curb to curb): 36.7 / 36.4 / 40.0 / 40.0 / TBD

Cargo1 std · 0 opt

Cargo volume, with seatbacks fixed (cu ft): 13.7 / 13.7 / 30.0 / 13.7 / 30.0

Ranked by what shoppers ask about first; standard equipment before options.

Transcribed from the manufacturer's official press kit for the 2025 A6. Confirm with the window sticker for a specific unit.

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Common questions about the S6

Source: EPA, NHTSA and manufacturer press kits

What does the 2025 Audi A6 S6 add over the A6 Sedan 45 TFSI® quattro®?

Against the A6 Sedan 45 TFSI® quattro®, 24 published specifications differ. Both lists are on this page, taken from the manufacturer's own press material.