Car comparison

AUDI A6 Sedan (C8) · Facelift 2023 55 TFSI V6vsAUDI A6 (4B/C5) 4.2 V8 40V

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 A6 (4B/C5)

4.2 V8 40V

300 hp4172 ccGasolineAWDAutomaticNaturally aspiratedSedan1999-2001

Comparison overview

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

Best choices

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
  • Most powerful
    340 hp
    254 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Best power-to-weight
    192 hp/t
    143 kW/t
    5.2 kg/hp
  • Lowest combined fuel consumption
    8.8 L/100 km
    26.7 mpg US
    32.1 mpg UK
  • Best estimated range
    716 km
    445 mi
  • Largest trunk
    520 L
  • Best overall score
    73/100
  • Best performance score
    72/100
  • Best economy score
    83/100

Specification comparison

Specification comparison
ModelAUDIA6 Sedan (C8)Facelift 202355 TFSI V6AUDIA6 (4B/C5)4.2 V8 40V
Power
340hp254kW
300hp224kW
Torque
500Nm369lb-ft
400Nm295lb-ft
Curb weight
1,770kg3,902lb
1,730kg3,814lb
Gross weight
2,400kg5,291lb
2,310kg5,093lb
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
48.5s99% target: 262 km/h / 163 mph
Calculated
72.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.9s
6.9s
0-200 km/h
14.7s
Calculated
22.0s
Calculated
0-60 mph
4.7s
Calculated
6.6s
Calculated
Fuel consumption
8.8L/100 km26.7mpg US32.1mpg UK
13L/100 km18.1mpg US21.7mpg UK
Fuel consumption city-
19L/100 km12.4mpg US14.9mpg UK
Fuel consumption highway-
9.5L/100 km24.8mpg US29.7mpg UK
Quarter mile
12.8s
Calculated
14.8s
Calculated
Power-to-weight
192hp/t143kW/t87hp/1000 lb
Calculated
173hp/t129kW/t79hp/1000 lb
Calculated
Torque-to-weight
282Nm/t189lb-ft/ton
Calculated
231Nm/t155lb-ft/ton
Calculated
Estimated range
716km445mi
Calculated
631km392mi
Calculated
Displacement
2,995cc183cu in
4,172cc255cu in
Length
4,939mm194in
4,833mm190in
Width
1,886mm74in
1,850mm73in
Height
1,457mm57in
1,453mm57in
Wheelbase
2,924mm115in
2,759mm109in
Front track
1,630mm64in
1,578mm62in
Rear track
1,617mm64in
1,590mm63in
Trunk volume
520L
-
Max trunk volume-
434L
Doors
4
4
Seats
5
5
Fuel tank
63L
82L
CO2 emissions-
312g/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 A6 Sedan (C8) Facelift 2023 55 TFSI V6AUDI A6 (4B/C5) 4.2 V8 40VPowerTorque
  • AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6: Power / Torque
  • AUDI A6 (4B/C5) 4.2 V8 40V: 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
AUDIA6 (4B/C5)4.2 V8 40V6,200 rpm3,000-4,000 rpm6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 Sedan (C8)Facelift 202355 TFSI V6AUDIA6 (4B/C5)4.2 V8 40V
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
6.6 s
0-100 km/h
0-62 mph
4.9 s
6.9 s
0-200 km/h
0-124 mph
14.7 s
22.0 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
2.7 s
330 ft
101 m
5.8 s
6.7 s
1/8 mile
201 m
8.5 s
9.9 s
1000 ft
305 m
10.9 s
12.6 s
1/4 mile
402 m
12.8 s
14.8 s
Trap speed
1/4 mile
402 m
188 km/h
117 mph
165 km/h
102 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
AUDIA6 (4B/C5)4.2 V8 40V
300 hp
224 kW

AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6 has 40 hp more than AUDI A6 (4B/C5) 4.2 V8 40V.

The biggest power difference is between AUDI A6 (4B/C5) 4.2 V8 40V and AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6: 40 hp (30 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
AUDIA6 (4B/C5)4.2 V8 40V
400 Nm
295 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
AUDIA6 (4B/C5)4.2 V8 40V
1,730 kg
3,814 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
AUDIA6 (4B/C5)4.2 V8 40V
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 Sedan (C8)Facelift 202355 TFSI V64.9 s
AUDIA6 (4B/C5)4.2 V8 40V6.9 s

The biggest 0-100 km/h difference is between AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6 and AUDI A6 (4B/C5) 4.2 V8 40V: 2.0 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
AUDIA6 (4B/C5)4.2 V8 40V
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

The biggest fuel consumption difference is between AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6 and AUDI A6 (4B/C5) 4.2 V8 40V: 4.2 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
AUDIA6 (4B/C5)4.2 V8 40V
173 hp/t
129 kW/t
5.8 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
AUDIA6 (4B/C5)4.2 V8 40V
631 km
392 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
AUDIA6 (4B/C5)4.2 V8 40V
300 hp
224 kW
6.9 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 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
AUDIA6 (4B/C5)4.2 V8 40V
Power
300 hp
224 kW
0-100 km/h6.9 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
1,453 mm
57.2 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
AUDIA6 (4B/C5)4.2 V8 40V
Power
300 hp
224 kW
0-100 km/h6.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

AUDI A6 Sedan (C8) Facelift 2023 55 TFSI 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
AUDIA6 (4B/C5)4.2 V8 40V
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
6.9 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
AUDIA6 (4B/C5)4.2 V8 40V
173 hp/t
129 kW/t
5.8 kg/hp
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Sedan (C8)Facelift 202355 TFSI V6AUDIA6 (4B/C5)4.2 V8 40V
Power
340 hp
254 kW
300 hp
224 kW
Torque
500 Nm
369 lb-ft
400 Nm
295 lb-ft
Acceleration
4.9 s
6.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,770 kg
3,902 lb
1,730 kg
3,814 lb
Fuel consumption
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
13.0 L/100 km
18.1 mpg US
21.7 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
434 L
15.3 cu ft
Length
4,833 mm
190.3 in
Height
1,453 mm
57.2 in
Range score
716 km
445 mi
631 km
392 mi
CO2 score
-
312 g/km
Trunk score
520 L
18.4 cu ft
434 L
15.3 cu ft
Power-to-weight score
192 hp/t
143 kW/t
5.2 kg/hp
173 hp/t
129 kW/t
5.8 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 A6 (4B/C5) 4.2 V8 40V
Consumption8.8 L/100 km26.7 mpg US32.1 mpg UK13 L/100 km18.1 mpg US21.7 mpg UK
Cost / 100 km15.40 LC100 km22.75 LC100 km
Cost / 100 mi24.78 LC100 mi36.61 LC100 mi
Annual fuel used1,320 L349 US gal290 UK gal1,950 L515 US gal429 UK gal
Annual fuel cost2,310 LC/year3,413 LC/year

Head-to-head comparisons

AUDI A6 Sedan (C8) Facelift 2023 55 TFSI V6

  • Has 40 hp more
  • Has 100 Nm more
  • Is 2.0 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Uses 4.2 L/100 km less fuel
  • Has 19 hp/t better power-to-weight
  • Has 85 km (53 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 power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Heaviest

AUDI A6 (4B/C5) 4.2 V8 40V

  • Is 40 kg lighter

Pros

  • Lightest

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 A6 Sedan (C8) 55 TFSI V6
AUDI A6 (4B/C5) 4.2 V8 40V
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2 vehicles selected

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