Car comparison

AUDI A6 Sedan (C8) · Facelift 2023 55 TFSI V6vsAUDI S6 (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 Sedan (C8) · Facelift 2023

55 TFSI V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedSedan2023-2025
VS

AUDI S6 (C8) · Facelift 2023

3.0 TDI V6

344 hp2967 ccDieselAWDAutomaticTurbochargedSedan2023-2025

Comparison overview

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

Best choices

AUDI S6 (C8) Facelift 2023 3.0 TDI V6

  • Most powerful
    344 hp
    257 kW
  • Highest torque
    700 Nm
    516 lb-ft
  • Lowest combined fuel consumption
    7.3 L/100 km
    32.2 mpg US
    38.7 mpg UK
  • Best estimated range
    863 km
    536 mi
  • Best overall score
    75/100
  • Best performance score
    74/100
  • Best economy score
    87/100

AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,770 kg
    3,902 lb
  • Best power-to-weight
    192 hp/t
    143 kW/t
    5.2 kg/hp
  • Largest trunk
    520 L
  • Best practicality score
    76/100

Specification comparison

Specification comparison
ModelAUDIA6 Sedan (C8)Facelift 202355 TFSI V6AUDIS6 (C8)Facelift 20233.0 TDI V6
Power
340hp254kW
344hp257kW
Torque
500Nm369lb-ft
700Nm516lb-ft
Curb weight
1,770kg3,902lb
1,955kg4,310lb
Gross weight
2,400kg5,291lb
2,590kg5,710lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
48.5s99% target: 262 km/h / 163 mph
Calculated
52.4s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.9s
5.0s
0-200 km/h
14.7s
Calculated
15.4s
Calculated
0-60 mph
4.7s
Calculated
4.8s
Calculated
Fuel consumption
8.8L/100 km26.7mpg US32.1mpg UK
7.3L/100 km32.2mpg US38.7mpg UK
Quarter mile
12.8s
Calculated
13.0s
Calculated
Power-to-weight
192hp/t143kW/t87hp/1000 lb
Calculated
176hp/t131kW/t80hp/1000 lb
Calculated
Torque-to-weight
282Nm/t189lb-ft/ton
Calculated
358Nm/t240lb-ft/ton
Calculated
Estimated range
716km445mi
Calculated
863km536mi
Calculated
Displacement
2,995cc183cu in
2,967cc181cu in
Length
4,939mm194in
4,964mm195in
Width
1,886mm74in
1,886mm74in
Height
1,457mm57in
1,446mm57in
Wheelbase
2,924mm115in
2,928mm115in
Front track
1,630mm64in
1,620mm64in
Rear track
1,617mm64in
1,603mm63in
Trunk volume
520L
520L
Doors
4
4
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 Sedan (C8) Facelift 2023 55 TFSI V6AUDI S6 (C8) Facelift 2023 3.0 TDI V6PowerTorque
  • AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6: Power / Torque
  • AUDI S6 (C8) Facelift 2023 3.0 TDI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 Sedan (C8)Facelift 202355 TFSI V65,200-6,400 rpm1,370-4,500 rpm6,650 rpm
AUDIS6 (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 Sedan (C8)Facelift 202355 TFSI V6AUDIS6 (C8)Facelift 20233.0 TDI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
4.8 s
0-100 km/h
0-62 mph
4.9 s
5.0 s
0-200 km/h
0-124 mph
14.7 s
15.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
265 km/h165 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
8.5 s
8.6 s
1000 ft
305 m
10.9 s
11.0 s
1/4 mile
402 m
12.8 s
13.0 s
Trap speed
1/4 mile
402 m
188 km/h
117 mph
184 km/h
115 mph

Power comparison

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

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

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

The biggest power difference is between AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6 and AUDI S6 (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 Sedan (C8)Facelift 202355 TFSI V6
500 Nm
369 lb-ft
AUDIS6 (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 Sedan (C8)Facelift 202355 TFSI V6
1,770 kg
3,902 lb
AUDIS6 (C8)Facelift 20233.0 TDI V6
1,955 kg
4,310 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 Sedan (C8)Facelift 202355 TFSI V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIS6 (C8)Facelift 20233.0 TDI V6
Unrestricted
265 km/h165 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 Sedan (C8)Facelift 202355 TFSI V64.9 s
AUDIS6 (C8)Facelift 20233.0 TDI V65.0 s

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

The biggest 0-100 km/h difference is between AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6 and AUDI S6 (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 Sedan (C8)Facelift 202355 TFSI V6
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
AUDIS6 (C8)Facelift 20233.0 TDI V6
7.3 L/100 km
32.2 mpg US
38.7 mpg UK

The biggest fuel consumption difference is between AUDI S6 (C8) Facelift 2023 3.0 TDI V6 and AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6: 1.5 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 Sedan (C8)Facelift 202355 TFSI V6
192 hp/t
143 kW/t
5.2 kg/hp
AUDIS6 (C8)Facelift 20233.0 TDI V6
176 hp/t
131 kW/t
5.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)Facelift 202355 TFSI V6
716 km
445 mi
AUDIS6 (C8)Facelift 20233.0 TDI V6
863 km
536 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 Sedan (C8)Facelift 202355 TFSI V6
340 hp
254 kW
4.9 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIS6 (C8)Facelift 20233.0 TDI V6
344 hp
257 kW
5.0 s
Unrestricted
265 km/h165 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 Sedan (C8)Facelift 202355 TFSI V6
Power
340 hp
254 kW
0-100 km/h4.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
4,939 mm
194.4 in
Height
1,457 mm
57.4 in
AUDIS6 (C8)Facelift 20233.0 TDI V6
Power
344 hp
257 kW
0-100 km/h5.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
4,964 mm
195.4 in
Height
1,446 mm
56.9 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 Sedan (C8)Facelift 202355 TFSI V6
Power
340 hp
254 kW
0-100 km/h4.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
AUDIS6 (C8)Facelift 20233.0 TDI V6
Power
344 hp
257 kW
0-100 km/h5.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.3 L/100 km
32.2 mpg US
38.7 mpg UK

AUDI S6 (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 Sedan (C8)Facelift 202355 TFSI V6
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
4.9 s
AUDIS6 (C8)Facelift 20233.0 TDI V6
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
5.0 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 Sedan (C8)Facelift 202355 TFSI V6
192 hp/t
143 kW/t
5.2 kg/hp
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
AUDIS6 (C8)Facelift 20233.0 TDI V6
176 hp/t
131 kW/t
5.7 kg/hp
7.3 L/100 km
32.2 mpg US
38.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Sedan (C8)Facelift 202355 TFSI V6AUDIS6 (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
4.9 s
5.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,770 kg
3,902 lb
1,955 kg
4,310 lb
Fuel consumption
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
4,939 mm
194.4 in
Height
1,457 mm
57.4 in
Doors/seats
4 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
4,964 mm
195.4 in
Height
1,446 mm
56.9 in
Range score
716 km
445 mi
863 km
536 mi
Trunk score
520 L
18.4 cu ft
520 L
18.4 cu ft
Power-to-weight score
192 hp/t
143 kW/t
5.2 kg/hp
176 hp/t
131 kW/t
5.7 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 Sedan (C8) Facelift 2023 55 TFSI V6AUDI S6 (C8) Facelift 2023 3.0 TDI V6
Consumption8.8 L/100 km26.7 mpg US32.1 mpg UK7.3 L/100 km32.2 mpg US38.7 mpg UK
Cost / 100 km15.40 LC100 km12.78 LC100 km
Cost / 100 mi24.78 LC100 mi20.56 LC100 mi
Annual fuel used1,320 L349 US gal290 UK gal1,095 L289 US gal241 UK gal
Annual fuel cost2,310 LC/year1,916 LC/year

Head-to-head comparisons

AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6

  • Is 185 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 16 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 (C8) Facelift 2023 3.0 TDI V6

  • Has 4 hp more
  • Has 200 Nm more
  • Uses 1.5 L/100 km less fuel
  • Has 147 km (91 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 Sedan (C8) 55 TFSI V6
AUDI S6 (C8) 3.0 TDI V6
Compare selected cars
2 vehicles selected

Popular comparisons

55 TFSI V6
55 TFSI V6
VS
AUDIA6 Sedan (C8)Facelift 202355 TFSI V6vsAUDIA6 Sedan (C8)55 TFSI V6
3.0 TDI V6
3.0 TDI V6
VS
AUDIS6 (C8)Facelift 20233.0 TDI V6vsAUDIS6 (C8)3.0 TDI V6
55 TFSI V6
55 TFSI V6
VS
AUDIA6 Sedan (C8)Facelift 202355 TFSI V6vsAUDIA6 Avant (C8)Facelift 202355 TFSI V6
3.0 TDI V6
3.0 TDI V6
VS
AUDIS6 (C8)Facelift 20233.0 TDI V6vsAUDIS6 Avant (C8)Facelift 20233.0 TDI V6
55 TFSI V6
4.2 V8 40V
VS
AUDIA6 Sedan (C8)Facelift 202355 TFSI V6vsAUDIA6 (4F/C6)4.2 V8 40V
3.0 TDI V6
4.2 V8
VS
AUDIS6 (C8)Facelift 20233.0 TDI V6vsAUDIS6 (4B/C5)4.2 V8
55 TFSI V6
55 TFSI V6
VS
AUDIA6 Sedan (C8)Facelift 202355 TFSI V6vsAUDIA6 allroad (C8)55 TFSI V6
3.0 TDI V6
3.0 TDI V6
VS
AUDIS6 (C8)Facelift 20233.0 TDI V6vsAUDIS6 Avant (C8)3.0 TDI V6
55 TFSI V6
4.2 FSI V8
VS
AUDIA6 Sedan (C8)Facelift 202355 TFSI V6vsAUDIA6 (4F/C6)Facelift 20084.2 FSI V8
3.0 TDI V6
4.0 TFSI V8
VS
AUDIS6 (C8)Facelift 20233.0 TDI V6vsAUDIS6 (C7)Facelift 20164.0 TFSI V8
55 TFSI V6
55 TFSI
VS
AUDIA6 Sedan (C8)Facelift 202355 TFSI V6vsAUDIA6 Avant (C8)55 TFSI
3.0 TDI V6
4.0 TFSI V8
VS
AUDIS6 (C8)Facelift 20233.0 TDI V6vsAUDIS6 (C7)Facelift 20144.0 TFSI V8
AUDI A6 Sedan (C8) · Facelift 2023 55 TFSI V6 vs AUDI S6 (C8) · Facelift 2023 3.0 TDI V6 - car comparison - FastVsFaster