Car comparison

AUDI A6 Avant (C8) · Facelift 2023 55 TFSI V6vsAUDI S6 Avant (C8) · Facelift 2023 3.0 TDI V6

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

AUDI A6 Avant (C8) · Facelift 2023

55 TFSI V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedWagon / estate2023-2025
VS

AUDI S6 Avant (C8) · Facelift 2023

3.0 TDI V6

344 hp2967 ccDieselAWDAutomaticTurbochargedWagon / estate2023-2025

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6

  • Most powerful
    344 hp
    257 kW
  • Highest torque
    700 Nm
    516 lb-ft
  • Lowest combined fuel consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Best estimated range
    851 km
    529 mi
  • Best overall score
    77/100
  • Best performance score
    73/100
  • Best economy score
    87/100

AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6

  • Quickest 0-100 km/h
    5.0 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,835 kg
    4,045 lb
  • Best power-to-weight
    185 hp/t
    138 kW/t
    5.4 kg/hp
  • Largest trunk
    550 L
  • Best practicality score
    86/100

Specification comparison

Specification comparison
ModelAUDIA6 Avant (C8)Facelift 202355 TFSI V6AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
Power
340hp254kW
344hp257kW
Torque
500Nm369lb-ft
700Nm516lb-ft
Curb weight
1,835kg4,045lb
2,020kg4,453lb
Gross weight
2,480kg5,467lb
2,655kg5,853lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
52.2s99% target: 257 km/h / 160 mph
Calculated
57.4s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.0s
5.1s
0-200 km/h
15.8s
Calculated
16.8s
Calculated
0-60 mph
4.8s
Calculated
4.9s
Calculated
Fuel consumption
9.1L/100 km25.8mpg US31.0mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Quarter mile
13.0s
Calculated
13.1s
Calculated
Power-to-weight
185hp/t138kW/t84hp/1000 lb
Calculated
170hp/t127kW/t77hp/1000 lb
Calculated
Torque-to-weight
272Nm/t182lb-ft/ton
Calculated
347Nm/t232lb-ft/ton
Calculated
Estimated range
692km430mi
Calculated
851km529mi
Calculated
Displacement
2,995cc183cu in
2,967cc181cu in
Length
4,939mm194in
4,964mm195in
Width
1,886mm74in
1,886mm74in
Height
1,494mm59in
1,481mm58in
Wheelbase
2,924mm115in
2,928mm115in
Front track
1,630mm64in
1,620mm64in
Rear track
1,617mm64in
1,603mm63in
Trunk volume
550L
550L
Max trunk volume
1,660L
1,660L
Doors
5
5
Seats
5
5
Fuel tank
63L
63L

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6PowerTorque
  • AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6: Power / Torque
  • AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 Avant (C8)Facelift 202355 TFSI V65,200-6,400 rpm1,370-4,500 rpm6,650 rpm
AUDIS6 Avant (C8)Facelift 20233.0 TDI V63,850-4,000 rpm1,750-3,250 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 Avant (C8)Facelift 202355 TFSI V6AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
4.8 s
4.9 s
0-100 km/h
0-62 mph
5.0 s
5.1 s
0-200 km/h
0-124 mph
15.8 s
16.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
5.8 s
5.8 s
1/8 mile
201 m
8.6 s
8.7 s
1000 ft
305 m
11.0 s
11.1 s
1/4 mile
402 m
13.0 s
13.1 s
Trap speed
1/4 mile
402 m
183 km/h
114 mph
179 km/h
111 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
340 hp
254 kW
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
344 hp
257 kW

AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6 has 4 hp more than AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6.

The biggest power difference is between AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6 and AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6: 4 hp (3 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
500 Nm
369 lb-ft
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
700 Nm
516 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
1,835 kg
4,045 lb
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
2,020 kg
4,453 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
AUDIA6 Avant (C8)Facelift 202355 TFSI V65.0 s
AUDIS6 Avant (C8)Facelift 20233.0 TDI V65.1 s

Although AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6 has more power, AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6 and AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6: 0.1 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

The biggest fuel consumption difference is between AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6 and AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6: 1.7 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
185 hp/t
138 kW/t
5.4 kg/hp
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
170 hp/t
127 kW/t
5.9 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
692 km
430 mi
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
851 km
529 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
340 hp
254 kW
5.0 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
344 hp
257 kW
5.1 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,939 mm
194.4 in
Height
1,494 mm
58.8 in
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
Power
344 hp
257 kW
0-100 km/h5.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,964 mm
195.4 in
Height
1,481 mm
58.3 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
Power
344 hp
257 kW
0-100 km/h5.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
5.0 s
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
5.1 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
AUDIA6 Avant (C8)Facelift 202355 TFSI V6
185 hp/t
138 kW/t
5.4 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
170 hp/t
127 kW/t
5.9 kg/hp
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Avant (C8)Facelift 202355 TFSI V6AUDIS6 Avant (C8)Facelift 20233.0 TDI V6
Power
340 hp
254 kW
344 hp
257 kW
Torque
500 Nm
369 lb-ft
700 Nm
516 lb-ft
Acceleration
5.0 s
5.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,835 kg
4,045 lb
2,020 kg
4,453 lb
Fuel consumption
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,939 mm
194.4 in
Height
1,494 mm
58.8 in
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,964 mm
195.4 in
Height
1,481 mm
58.3 in
Range score
692 km
430 mi
851 km
529 mi
Trunk score
550 L
19.4 cu ft
550 L
19.4 cu ft
Power-to-weight score
185 hp/t
138 kW/t
5.4 kg/hp
170 hp/t
127 kW/t
5.9 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleAUDI A6 Avant (C8) Facelift 2023 55 TFSI V6AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6
Consumption9.1 L/100 km25.8 mpg US31 mpg UK7.4 L/100 km31.8 mpg US38.2 mpg UK
Cost / 100 km15.92 LC100 km12.95 LC100 km
Cost / 100 mi25.63 LC100 mi20.84 LC100 mi
Annual fuel used1,365 L361 US gal300 UK gal1,110 L293 US gal244 UK gal
Annual fuel cost2,389 LC/year1,943 LC/year

Head-to-head comparisons

AUDI A6 Avant (C8) Facelift 2023 55 TFSI V6

  • Is 185 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 15 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Lowest power
  • Highest combined fuel consumption

AUDI S6 Avant (C8) Facelift 2023 3.0 TDI V6

  • Has 4 hp more
  • Has 200 Nm more
  • Uses 1.7 L/100 km less fuel
  • Has 159 km (99 mi) more estimated range

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 Avant (C8) 55 TFSI V6
AUDI S6 Avant (C8) 3.0 TDI V6
Compare selected cars
2 vehicles selected

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