Car comparison

AUDI S6 (C8) · Facelift 2023 3.0 TDI V6vsAUDI S6 (4B/C5) 4.2 V8

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

New comparison

AUDI S6 (C8) · Facelift 2023

3.0 TDI V6

344 hp2967 ccDieselAWDAutomaticTurbochargedSedan2023-2025
VS

AUDI S6 (4B/C5)

4.2 V8

340 hp4172 ccGasolineAWDAutomaticNaturally aspiratedSedan1999-2005

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

  • Quickest 0-100 km/h
    5.0 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • 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
  • Largest trunk
    520 L
  • Best overall score
    75/100
  • Best performance score
    74/100
  • Best economy score
    87/100
  • Best practicality score
    76/100

Specification comparison

Specification comparison
ModelAUDIS6 (C8)Facelift 20233.0 TDI V6AUDIS6 (4B/C5)4.2 V8
Power
344hp257kW
340hp254kW
Torque
700Nm516lb-ft
420Nm310lb-ft
Curb weight
1,955kg4,310lb
1,760kg3,880lb
Gross weight
2,590kg5,710lb
2,300kg5,071lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
52.4s99% target: 262 km/h / 163 mph
Calculated
70.2s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.0s
6.7s
0-200 km/h
15.4s
Calculated
21.3s
Calculated
0-60 mph
4.8s
Calculated
6.4s
Calculated
Fuel consumption
7.3L/100 km32.2mpg US38.7mpg UK
14.3L/100 km16.4mpg US19.8mpg UK
Fuel consumption city-
21.8L/100 km10.8mpg US13.0mpg UK
Fuel consumption highway-
10.1L/100 km23.3mpg US28.0mpg UK
Quarter mile
13.0s
Calculated
14.6s
Calculated
Power-to-weight
176hp/t131kW/t80hp/1000 lb
Calculated
193hp/t144kW/t88hp/1000 lb
Calculated
Torque-to-weight
358Nm/t240lb-ft/ton
Calculated
239Nm/t160lb-ft/ton
Calculated
Estimated range
863km536mi
Calculated
573km356mi
Calculated
Displacement
2,967cc181cu in
4,172cc255cu in
Length
4,964mm195in
4,833mm190in
Width
1,886mm74in
1,850mm73in
Height
1,446mm57in
1,443mm57in
Wheelbase
2,928mm115in
2,759mm109in
Front track
1,620mm64in
1,578mm62in
Rear track
1,603mm63in
1,590mm63in
Trunk volume
520L
434L
Doors
4
4
Seats
5
5
Fuel tank
63L
82L
CO2 emissions-
343g/km

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 S6 (C8) Facelift 2023 3.0 TDI V6AUDI S6 (4B/C5) 4.2 V8PowerTorque
  • AUDI S6 (C8) Facelift 2023 3.0 TDI V6: Power / Torque
  • AUDI S6 (4B/C5) 4.2 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIS6 (C8)Facelift 20233.0 TDI V63,850-4,000 rpm1,750-3,250 rpm4,250 rpm
AUDIS6 (4B/C5)4.2 V87,000 rpm3,400 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS6 (C8)Facelift 20233.0 TDI V6AUDIS6 (4B/C5)4.2 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.8 s
6.4 s
0-100 km/h
0-62 mph
5.0 s
6.7 s
0-200 km/h
0-124 mph
15.4 s
21.3 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.6 s
330 ft
101 m
5.8 s
6.6 s
1/8 mile
201 m
8.6 s
9.8 s
1000 ft
305 m
11.0 s
12.4 s
1/4 mile
402 m
13.0 s
14.6 s
Trap speed
1/4 mile
402 m
184 km/h
115 mph
167 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS6 (C8)Facelift 20233.0 TDI V6
344 hp
257 kW
AUDIS6 (4B/C5)4.2 V8
340 hp
254 kW

AUDI S6 (C8) Facelift 2023 3.0 TDI V6 has 4 hp more than AUDI S6 (4B/C5) 4.2 V8.

The biggest power difference is between AUDI S6 (4B/C5) 4.2 V8 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
AUDIS6 (C8)Facelift 20233.0 TDI V6
700 Nm
516 lb-ft
AUDIS6 (4B/C5)4.2 V8
420 Nm
310 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIS6 (C8)Facelift 20233.0 TDI V6
1,955 kg
4,310 lb
AUDIS6 (4B/C5)4.2 V8
1,760 kg
3,880 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIS6 (C8)Facelift 20233.0 TDI V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIS6 (4B/C5)4.2 V8
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
AUDIS6 (C8)Facelift 20233.0 TDI V65.0 s
AUDIS6 (4B/C5)4.2 V86.7 s

The biggest 0-100 km/h difference is between AUDI S6 (C8) Facelift 2023 3.0 TDI V6 and AUDI S6 (4B/C5) 4.2 V8: 1.7 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AUDIS6 (C8)Facelift 20233.0 TDI V6
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
AUDIS6 (4B/C5)4.2 V8
14.3 L/100 km
16.4 mpg US
19.8 mpg UK

The biggest fuel consumption difference is between AUDI S6 (C8) Facelift 2023 3.0 TDI V6 and AUDI S6 (4B/C5) 4.2 V8: 7.0 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
AUDIS6 (C8)Facelift 20233.0 TDI V6
176 hp/t
131 kW/t
5.7 kg/hp
AUDIS6 (4B/C5)4.2 V8
193 hp/t
144 kW/t
5.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIS6 (C8)Facelift 20233.0 TDI V6
863 km
536 mi
AUDIS6 (4B/C5)4.2 V8
573 km
356 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS6 (C8)Facelift 20233.0 TDI V6
344 hp
257 kW
5.0 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIS6 (4B/C5)4.2 V8
340 hp
254 kW
6.7 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
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
AUDIS6 (4B/C5)4.2 V8
Power
340 hp
254 kW
0-100 km/h6.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
434 L
15.3 cu ft
Length
4,833 mm
190.3 in
Height
1,443 mm
56.8 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
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
AUDIS6 (4B/C5)4.2 V8
Power
340 hp
254 kW
0-100 km/h6.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
14.3 L/100 km
16.4 mpg US
19.8 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
AUDIS6 (C8)Facelift 20233.0 TDI V6
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
5.0 s
AUDIS6 (4B/C5)4.2 V8
14.3 L/100 km
16.4 mpg US
19.8 mpg UK
6.7 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
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
AUDIS6 (4B/C5)4.2 V8
193 hp/t
144 kW/t
5.2 kg/hp
14.3 L/100 km
16.4 mpg US
19.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS6 (C8)Facelift 20233.0 TDI V6AUDIS6 (4B/C5)4.2 V8
Power
344 hp
257 kW
340 hp
254 kW
Torque
700 Nm
516 lb-ft
420 Nm
310 lb-ft
Acceleration
5.0 s
6.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,955 kg
4,310 lb
1,760 kg
3,880 lb
Fuel consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
14.3 L/100 km
16.4 mpg US
19.8 mpg UK
Practicality
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
Doors/seats
4 doors
5 seats
Trunk
434 L
15.3 cu ft
Length
4,833 mm
190.3 in
Height
1,443 mm
56.8 in
Range score
863 km
536 mi
573 km
356 mi
CO2 score
-
343 g/km
Trunk score
520 L
18.4 cu ft
434 L
15.3 cu ft
Power-to-weight score
176 hp/t
131 kW/t
5.7 kg/hp
193 hp/t
144 kW/t
5.2 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 S6 (C8) Facelift 2023 3.0 TDI V6AUDI S6 (4B/C5) 4.2 V8
Consumption7.3 L/100 km32.2 mpg US38.7 mpg UK14.3 L/100 km16.4 mpg US19.8 mpg UK
Cost / 100 km12.78 LC100 km25.03 LC100 km
Cost / 100 mi20.56 LC100 mi40.27 LC100 mi
Annual fuel used1,095 L289 US gal241 UK gal2,145 L567 US gal472 UK gal
Annual fuel cost1,916 LC/year3,754 LC/year

Head-to-head comparisons

AUDI S6 (C8) Facelift 2023 3.0 TDI V6

  • Has 4 hp more
  • Has 280 Nm more
  • Is 1.7 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Uses 7.0 L/100 km less fuel
  • Has 290 km (180 mi) more estimated range
  • Has 86 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Heaviest

AUDI S6 (4B/C5) 4.2 V8

  • Is 195 kg lighter
  • Has 17 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI S6 (C8) 3.0 TDI V6
AUDI S6 (4B/C5) 4.2 V8
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2 vehicles selected

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