Car comparison

AUDI A6 Sedan (C8) 55 TFSI V6vsAUDI A6 (4F/C6) 4.2 V8 40V

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

New comparison

AUDI A6 Sedan (C8)

55 TFSI V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedSedan2018-2023
VS

AUDI A6 (4F/C6)

4.2 V8 40V

335 hp4163 ccGasolineAWDAutomaticNaturally aspiratedSedan2004-2006

Comparison overview

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

Best choices

AUDI A6 Sedan (C8) 55 TFSI V6

  • Quickest 0-100 km/h
    5.1 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
    193 hp/t
    144 kW/t
    5.2 kg/hp
  • Lowest combined fuel consumption
    7.1 L/100 km
    33.1 mpg US
    39.8 mpg UK
  • Lowest city consumption
    9.2 L/100 km
    25.6 mpg US
    30.7 mpg UK
  • Lowest highway consumption
    5.8 L/100 km
    40.6 mpg US
    48.7 mpg UK
  • Lowest CO2 emissions
    161 g/km
  • Best estimated range
    887 km
    551 mi
  • Best overall score
    73/100
  • Best performance score
    71/100
  • Best economy score
    88/100

Specification comparison

Specification comparison
ModelAUDIA6 Sedan (C8)55 TFSI V6AUDIA6 (4F/C6)4.2 V8 40V
Power
340hp254kW
335hp250kW
Torque
500Nm369lb-ft
420Nm310lb-ft
Curb weight
1,760kg3,880lb
1,745kg3,847lb
Gross weight
2,400kg5,291lb
2,325kg5,126lb
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
50.9s99% target: 262 km/h / 163 mph
Calculated
62.1s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.1s
6.1s
0-200 km/h
15.3s
Calculated
18.5s
Calculated
0-60 mph
4.9s
Calculated
5.8s
Calculated
Fuel consumption
7.1L/100 km33.1mpg US39.8mpg UK
11.6L/100 km20.3mpg US24.4mpg UK
Fuel consumption city
9.2L/100 km25.6mpg US30.7mpg UK
16.5L/100 km14.3mpg US17.1mpg UK
Fuel consumption highway
5.8L/100 km40.6mpg US48.7mpg UK
8.8L/100 km26.7mpg US32.1mpg UK
Quarter mile
13.0s
Calculated
14.0s
Calculated
Power-to-weight
193hp/t144kW/t88hp/1000 lb
Calculated
192hp/t143kW/t87hp/1000 lb
Calculated
Torque-to-weight
284Nm/t190lb-ft/ton
Calculated
241Nm/t161lb-ft/ton
Calculated
Estimated range
887km551mi
Calculated
690km429mi
Calculated
Displacement
2,995cc183cu in
4,163cc254cu in
Length
4,939mm194in
4,916mm194in
Width
1,886mm74in
1,855mm73in
Height
1,457mm57in
1,459mm57in
Wheelbase
2,924mm115in
2,843mm112in
Front track
1,630mm64in
1,612mm63in
Rear track
1,617mm64in
1,618mm64in
Trunk volume
530L
-
Max trunk volume-
546L
Doors
4
4
Seats
5
5
Fuel tank
63L
80L
CO2 emissions
161g/km
278g/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) 55 TFSI V6AUDI A6 (4F/C6) 4.2 V8 40VPowerTorque
  • AUDI A6 Sedan (C8) 55 TFSI V6: Power / Torque
  • AUDI A6 (4F/C6) 4.2 V8 40V: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 Sedan (C8)55 TFSI V65,000-6,400 rpm1,370-4,500 rpm6,650 rpm
AUDIA6 (4F/C6)4.2 V8 40V6,600 rpm3,500 rpm6,850 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 Sedan (C8)55 TFSI V6AUDIA6 (4F/C6)4.2 V8 40V
Acceleration checkpoints
0-60 mph
0-97 km/h
4.9 s
5.8 s
0-100 km/h
0-62 mph
5.1 s
6.1 s
0-200 km/h
0-124 mph
15.3 s
18.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.4 s
2.6 s
330 ft
101 m
5.9 s
6.4 s
1/8 mile
201 m
8.7 s
9.4 s
1000 ft
305 m
11.1 s
11.9 s
1/4 mile
402 m
13.0 s
14.0 s
Trap speed
1/4 mile
402 m
185 km/h
115 mph
174 km/h
108 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)55 TFSI V6
340 hp
254 kW
AUDIA6 (4F/C6)4.2 V8 40V
335 hp
250 kW

AUDI A6 Sedan (C8) 55 TFSI V6 has 5 hp more than AUDI A6 (4F/C6) 4.2 V8 40V.

The biggest power difference is between AUDI A6 (4F/C6) 4.2 V8 40V and AUDI A6 Sedan (C8) 55 TFSI V6: 5 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)55 TFSI V6
500 Nm
369 lb-ft
AUDIA6 (4F/C6)4.2 V8 40V
420 Nm
310 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)55 TFSI V6
1,760 kg
3,880 lb
AUDIA6 (4F/C6)4.2 V8 40V
1,745 kg
3,847 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)55 TFSI V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA6 (4F/C6)4.2 V8 40V
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)55 TFSI V65.1 s
AUDIA6 (4F/C6)4.2 V8 40V6.1 s

The biggest 0-100 km/h difference is between AUDI A6 Sedan (C8) 55 TFSI V6 and AUDI A6 (4F/C6) 4.2 V8 40V: 1.0 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)55 TFSI V6
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
AUDIA6 (4F/C6)4.2 V8 40V
11.6 L/100 km
20.3 mpg US
24.4 mpg UK

The biggest fuel consumption difference is between AUDI A6 Sedan (C8) 55 TFSI V6 and AUDI A6 (4F/C6) 4.2 V8 40V: 4.5 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)55 TFSI V6
193 hp/t
144 kW/t
5.2 kg/hp
AUDIA6 (4F/C6)4.2 V8 40V
192 hp/t
143 kW/t
5.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIA6 Sedan (C8)55 TFSI V6
887 km
551 mi
AUDIA6 (4F/C6)4.2 V8 40V
690 km
429 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 Sedan (C8)55 TFSI V6
340 hp
254 kW
5.1 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA6 (4F/C6)4.2 V8 40V
335 hp
250 kW
6.1 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)55 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,939 mm
194.4 in
Height
1,457 mm
57.4 in
AUDIA6 (4F/C6)4.2 V8 40V
Power
335 hp
250 kW
0-100 km/h6.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
546 L
19.3 cu ft
Length
4,916 mm
193.5 in
Height
1,459 mm
57.4 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)55 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
AUDIA6 (4F/C6)4.2 V8 40V
Power
335 hp
250 kW
0-100 km/h6.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
11.6 L/100 km
20.3 mpg US
24.4 mpg UK

AUDI A6 Sedan (C8) 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)55 TFSI V6
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
5.1 s
AUDIA6 (4F/C6)4.2 V8 40V
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
6.1 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 Sedan (C8)55 TFSI V6
193 hp/t
144 kW/t
5.2 kg/hp
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
AUDIA6 (4F/C6)4.2 V8 40V
192 hp/t
143 kW/t
5.2 kg/hp
11.6 L/100 km
20.3 mpg US
24.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Sedan (C8)55 TFSI V6AUDIA6 (4F/C6)4.2 V8 40V
Power
340 hp
254 kW
335 hp
250 kW
Torque
500 Nm
369 lb-ft
420 Nm
310 lb-ft
Acceleration
5.1 s
6.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,760 kg
3,880 lb
1,745 kg
3,847 lb
Fuel consumption
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,939 mm
194.4 in
Height
1,457 mm
57.4 in
Doors/seats
4 doors
5 seats
Trunk
546 L
19.3 cu ft
Length
4,916 mm
193.5 in
Height
1,459 mm
57.4 in
Range score
887 km
551 mi
690 km
429 mi
CO2 score
161 g/km
278 g/km
Trunk score
530 L
18.7 cu ft
546 L
19.3 cu ft
Power-to-weight score
193 hp/t
144 kW/t
5.2 kg/hp
192 hp/t
143 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 A6 Sedan (C8) 55 TFSI V6AUDI A6 (4F/C6) 4.2 V8 40V
Consumption7.1 L/100 km33.1 mpg US39.8 mpg UK11.6 L/100 km20.3 mpg US24.4 mpg UK
Cost / 100 km12.42 LC100 km20.30 LC100 km
Cost / 100 mi20.00 LC100 mi32.67 LC100 mi
Annual fuel used1,065 L281 US gal234 UK gal1,740 L460 US gal383 UK gal
Annual fuel cost1,864 LC/year3,045 LC/year

Head-to-head comparisons

AUDI A6 Sedan (C8) 55 TFSI V6

  • Has 5 hp more
  • Has 80 Nm more
  • Is 1.0 s quicker from 0-100 km/h
  • Uses 4.5 L/100 km less fuel
  • Has 1 hp/t better power-to-weight
  • Has 198 km (123 mi) more estimated range
  • Emits 117 g/km less CO2

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

Cons

  • Heaviest
  • Smallest trunk

AUDI A6 (4F/C6) 4.2 V8 40V

  • Is 15 kg lighter
  • Has 16 L more trunk volume

Pros

  • Lightest
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 Sedan (C8) 55 TFSI V6
AUDI A6 (4F/C6) 4.2 V8 40V
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2 vehicles selected

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