Car comparison

AUDI A6 Avant (C8) 55 TFSIvsAUDI A6 Avant (4F/C6) 4.2 FSI V8

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

New comparison

AUDI A6 Avant (C8)

55 TFSI

340 hp2995 ccGasolineAWDAutomaticTurbochargedWagon / estate2020-2023
VS

AUDI A6 Avant (4F/C6)

4.2 FSI V8

350 hp4163 ccGasolineAWDAutomaticNaturally aspiratedWagon / estate2006-2008

Comparison overview

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

Best choices

AUDI A6 Avant (C8) 55 TFSI

  • Quickest 0-100 km/h
    5.3 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Lowest city consumption
    9.7 L/100 km
    24.2 mpg US
    29.1 mpg UK
  • Lowest highway consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest CO2 emissions
    169 g/km
  • Best estimated range
    851 km
    529 mi
  • Largest trunk
    565 L
  • Best overall score
    75/100
  • Best performance score
    69/100
  • Best economy score
    87/100
  • Best practicality score
    87/100

Specification comparison

Specification comparison
ModelAUDIA6 Avant (C8)55 TFSIAUDIA6 Avant (4F/C6)4.2 FSI V8
Power
340hp254kW
350hp261kW
Torque
500Nm369lb-ft
440Nm325lb-ft
Curb weight
1,835kg4,045lb
1,830kg4,034lb
Gross weight
2,480kg5,467lb
2,460kg5,423lb
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
54.9s99% target: 257 km/h / 160 mph
Calculated
65.3s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.3s
6.1s
0-200 km/h
16.7s
Calculated
19.6s
Calculated
0-60 mph
5.1s
Calculated
5.8s
Calculated
Fuel consumption
7.4L/100 km31.8mpg US38.2mpg UK
10.9L/100 km21.6mpg US25.9mpg UK
Fuel consumption city
9.7L/100 km24.2mpg US29.1mpg UK
15.7L/100 km15mpg US18.0mpg UK
Fuel consumption highway
6.1L/100 km38.6mpg US46.3mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Quarter mile
13.3s
Calculated
14.1s
Calculated
Power-to-weight
185hp/t138kW/t84hp/1000 lb
Calculated
191hp/t143kW/t87hp/1000 lb
Calculated
Torque-to-weight
272Nm/t182lb-ft/ton
Calculated
240Nm/t161lb-ft/ton
Calculated
Estimated range
851km529mi
Calculated
734km456mi
Calculated
Displacement
2,995cc183cu in
4,163cc254cu in
Length
4,939mm194in
4,933mm194in
Width
1,886mm74in
1,855mm73in
Height
1,467mm58in
1,463mm58in
Wheelbase
2,924mm115in
2,843mm112in
Front track
1,630mm64in
1,612mm63in
Rear track
1,617mm64in
1,618mm64in
Trunk volume
565L
565L
Max trunk volume-
1,660L
Doors
5
5
Seats
5
5
Fuel tank
63L
80L
CO2 emissions
169g/km
259g/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 Avant (C8) 55 TFSIAUDI A6 Avant (4F/C6) 4.2 FSI V8PowerTorque
  • AUDI A6 Avant (C8) 55 TFSI: Power / Torque
  • AUDI A6 Avant (4F/C6) 4.2 FSI V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 Avant (C8)55 TFSI5,000-6,400 rpm1,370-4,500 rpm6,650 rpm
AUDIA6 Avant (4F/C6)4.2 FSI V86,800 rpm3,500 rpm7,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 Avant (C8)55 TFSIAUDIA6 Avant (4F/C6)4.2 FSI V8
Acceleration checkpoints
0-60 mph
0-97 km/h
5.1 s
5.8 s
0-100 km/h
0-62 mph
5.3 s
6.1 s
0-200 km/h
0-124 mph
16.7 s
19.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.4 s
2.5 s
330 ft
101 m
6.0 s
6.3 s
1/8 mile
201 m
8.8 s
9.4 s
1000 ft
305 m
11.3 s
11.9 s
1/4 mile
402 m
13.3 s
14.1 s
Trap speed
1/4 mile
402 m
180 km/h
112 mph
171 km/h
106 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 Avant (C8)55 TFSI
340 hp
254 kW
AUDIA6 Avant (4F/C6)4.2 FSI V8
350 hp
261 kW

AUDI A6 Avant (4F/C6) 4.2 FSI V8 has 10 hp more than AUDI A6 Avant (C8) 55 TFSI.

The biggest power difference is between AUDI A6 Avant (C8) 55 TFSI and AUDI A6 Avant (4F/C6) 4.2 FSI V8: 10 hp (7 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA6 Avant (C8)55 TFSI
500 Nm
369 lb-ft
AUDIA6 Avant (4F/C6)4.2 FSI V8
440 Nm
325 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIA6 Avant (C8)55 TFSI
1,835 kg
4,045 lb
AUDIA6 Avant (4F/C6)4.2 FSI V8
1,830 kg
4,034 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)55 TFSI
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (4F/C6)4.2 FSI 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
AUDIA6 Avant (C8)55 TFSI5.3 s
AUDIA6 Avant (4F/C6)4.2 FSI V86.1 s

Although AUDI A6 Avant (4F/C6) 4.2 FSI V8 has more power, AUDI A6 Avant (C8) 55 TFSI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A6 Avant (C8) 55 TFSI and AUDI A6 Avant (4F/C6) 4.2 FSI V8: 0.8 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)55 TFSI
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
AUDIA6 Avant (4F/C6)4.2 FSI V8
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

The biggest fuel consumption difference is between AUDI A6 Avant (C8) 55 TFSI and AUDI A6 Avant (4F/C6) 4.2 FSI V8: 3.5 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 Avant (C8)55 TFSI
185 hp/t
138 kW/t
5.4 kg/hp
AUDIA6 Avant (4F/C6)4.2 FSI V8
191 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 Avant (C8)55 TFSI
851 km
529 mi
AUDIA6 Avant (4F/C6)4.2 FSI V8
734 km
456 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 Avant (C8)55 TFSI
340 hp
254 kW
5.3 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (4F/C6)4.2 FSI V8
350 hp
261 kW
6.1 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)55 TFSI
Power
340 hp
254 kW
0-100 km/h5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,939 mm
194.4 in
Height
1,467 mm
57.8 in
AUDIA6 Avant (4F/C6)4.2 FSI V8
Power
350 hp
261 kW
0-100 km/h6.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,933 mm
194.2 in
Height
1,463 mm
57.6 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)55 TFSI
Power
340 hp
254 kW
0-100 km/h5.3 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
AUDIA6 Avant (4F/C6)4.2 FSI V8
Power
350 hp
261 kW
0-100 km/h6.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

AUDI A6 Avant (C8) 55 TFSI 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)55 TFSI
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
5.3 s
AUDIA6 Avant (4F/C6)4.2 FSI V8
10.9 L/100 km
21.6 mpg US
25.9 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 Avant (C8)55 TFSI
185 hp/t
138 kW/t
5.4 kg/hp
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
AUDIA6 Avant (4F/C6)4.2 FSI V8
191 hp/t
143 kW/t
5.2 kg/hp
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 Avant (C8)55 TFSIAUDIA6 Avant (4F/C6)4.2 FSI V8
Power
340 hp
254 kW
350 hp
261 kW
Torque
500 Nm
369 lb-ft
440 Nm
325 lb-ft
Acceleration
5.3 s
6.1 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
1,830 kg
4,034 lb
Fuel consumption
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,939 mm
194.4 in
Height
1,467 mm
57.8 in
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,933 mm
194.2 in
Height
1,463 mm
57.6 in
Range score
851 km
529 mi
734 km
456 mi
CO2 score
169 g/km
259 g/km
Trunk score
565 L
20.0 cu ft
565 L
20.0 cu ft
Power-to-weight score
185 hp/t
138 kW/t
5.4 kg/hp
191 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 Avant (C8) 55 TFSIAUDI A6 Avant (4F/C6) 4.2 FSI V8
Consumption7.4 L/100 km31.8 mpg US38.2 mpg UK10.9 L/100 km21.6 mpg US25.9 mpg UK
Cost / 100 km12.95 LC100 km19.08 LC100 km
Cost / 100 mi20.84 LC100 mi30.70 LC100 mi
Annual fuel used1,110 L293 US gal244 UK gal1,635 L432 US gal360 UK gal
Annual fuel cost1,943 LC/year2,861 LC/year

Head-to-head comparisons

AUDI A6 Avant (C8) 55 TFSI

  • Has 60 Nm more
  • Is 0.8 s quicker from 0-100 km/h
  • Uses 3.5 L/100 km less fuel
  • Has 117 km (73 mi) more estimated range
  • Emits 90 g/km less CO2

Pros

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

Cons

  • Lowest power
  • Heaviest

AUDI A6 Avant (4F/C6) 4.2 FSI V8

  • Has 10 hp more
  • Is 5 kg lighter
  • Has 6 hp/t better power-to-weight

Pros

  • Most powerful
  • Lightest
  • Best power-to-weight ratio

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 Avant (C8) 55 TFSI
AUDI A6 Avant (4F/C6) 4.2 FSI V8
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2 vehicles selected

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