Car comparison

AUDI A6 allroad (C8) 55 TDI V6vsAUDI 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 allroad (C8)

55 TDI V6

344 hp2967 ccDieselAWDAutomaticTurbochargedWagon / estate2020-2025
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 allroad (C8) 55 TDI V6

  • Quickest 0-100 km/h
    5.2 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    700 Nm
    516 lb-ft
  • Lowest combined fuel consumption
    7.5 L/100 km
    31.4 mpg US
    37.7 mpg UK
  • Best estimated range
    840 km
    522 mi
  • Best overall score
    77/100
  • Best performance score
    73/100
  • Best economy score
    87/100

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

  • Most powerful
    350 hp
    261 kW
  • Lightest
    1,830 kg
    4,034 lb
  • Best power-to-weight
    191 hp/t
    143 kW/t
    5.2 kg/hp
  • Largest trunk
    565 L
  • Best practicality score
    87/100

Specification comparison

Specification comparison
ModelAUDIA6 allroad (C8)55 TDI V6AUDIA6 Avant (4F/C6)4.2 FSI V8
Power
344hp257kW
350hp261kW
Torque
700Nm516lb-ft
440Nm325lb-ft
Curb weight
2,010kg4,431lb
1,830kg4,034lb
Gross weight
2,695kg5,941lb
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
58.8s99% target: 257 km/h / 160 mph
Calculated
65.3s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.2s
6.1s
0-200 km/h
17.1s
Calculated
19.6s
Calculated
0-60 mph
5.0s
Calculated
5.8s
Calculated
Fuel consumption
7.5L/100 km31.4mpg US37.7mpg UK
10.9L/100 km21.6mpg US25.9mpg UK
Fuel consumption city-
15.7L/100 km15mpg US18.0mpg UK
Fuel consumption highway-
8.2L/100 km28.7mpg US34.4mpg UK
Quarter mile
13.2s
Calculated
14.1s
Calculated
Power-to-weight
171hp/t128kW/t78hp/1000 lb
Calculated
191hp/t143kW/t87hp/1000 lb
Calculated
Torque-to-weight
348Nm/t233lb-ft/ton
Calculated
240Nm/t161lb-ft/ton
Calculated
Estimated range
840km522mi
Calculated
734km456mi
Calculated
Displacement
2,967cc181cu in
4,163cc254cu in
Length
4,951mm195in
4,933mm194in
Width
1,902mm75in
1,855mm73in
Height
1,542mm61in
1,463mm58in
Wheelbase
2,925mm115in
2,843mm112in
Front track
1,645mm65in
1,612mm63in
Rear track
1,611mm63in
1,618mm64in
Ground clearance
184mm7in
-
Trunk volume
550L
565L
Max trunk volume
1,660L
1,660L
Doors
5
5
Seats
5
5
Fuel tank
63L
80L
CO2 emissions-
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 allroad (C8) 55 TDI V6AUDI A6 Avant (4F/C6) 4.2 FSI V8PowerTorque
  • AUDI A6 allroad (C8) 55 TDI V6: 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 allroad (C8)55 TDI V63,850-4,000 rpm1,750-3,250 rpm4,250 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 allroad (C8)55 TDI V6AUDIA6 Avant (4F/C6)4.2 FSI V8
Acceleration checkpoints
0-60 mph
0-97 km/h
5.0 s
5.8 s
0-100 km/h
0-62 mph
5.2 s
6.1 s
0-200 km/h
0-124 mph
17.1 s
19.6 s
Top speed
Unrestricted
260 km/h162 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
2.5 s
330 ft
101 m
5.9 s
6.3 s
1/8 mile
201 m
8.7 s
9.4 s
1000 ft
305 m
11.2 s
11.9 s
1/4 mile
402 m
13.2 s
14.1 s
Trap speed
1/4 mile
402 m
178 km/h
111 mph
171 km/h
106 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 allroad (C8)55 TDI V6
344 hp
257 kW
AUDIA6 Avant (4F/C6)4.2 FSI V8
350 hp
261 kW

AUDI A6 Avant (4F/C6) 4.2 FSI V8 has 6 hp more than AUDI A6 allroad (C8) 55 TDI V6.

The biggest power difference is between AUDI A6 allroad (C8) 55 TDI V6 and AUDI A6 Avant (4F/C6) 4.2 FSI V8: 6 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA6 allroad (C8)55 TDI V6
700 Nm
516 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 allroad (C8)55 TDI V6
2,010 kg
4,431 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 allroad (C8)55 TDI V6
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 allroad (C8)55 TDI V65.2 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 allroad (C8) 55 TDI V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A6 allroad (C8) 55 TDI V6 and AUDI A6 Avant (4F/C6) 4.2 FSI V8: 0.9 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 allroad (C8)55 TDI V6
7.5 L/100 km
31.4 mpg US
37.7 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 allroad (C8) 55 TDI V6 and AUDI A6 Avant (4F/C6) 4.2 FSI V8: 3.4 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 allroad (C8)55 TDI V6
171 hp/t
128 kW/t
5.8 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 allroad (C8)55 TDI V6
840 km
522 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 allroad (C8)55 TDI V6
344 hp
257 kW
5.2 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 allroad (C8)55 TDI V6
Power
344 hp
257 kW
0-100 km/h5.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,951 mm
194.9 in
Height
1,542 mm
60.7 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 allroad (C8)55 TDI V6
Power
344 hp
257 kW
0-100 km/h5.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.5 L/100 km
31.4 mpg US
37.7 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 allroad (C8) 55 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 allroad (C8)55 TDI V6
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
5.2 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 allroad (C8)55 TDI V6
171 hp/t
128 kW/t
5.8 kg/hp
7.5 L/100 km
31.4 mpg US
37.7 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 allroad (C8)55 TDI V6AUDIA6 Avant (4F/C6)4.2 FSI V8
Power
344 hp
257 kW
350 hp
261 kW
Torque
700 Nm
516 lb-ft
440 Nm
325 lb-ft
Acceleration
5.2 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
2,010 kg
4,431 lb
1,830 kg
4,034 lb
Fuel consumption
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,951 mm
194.9 in
Height
1,542 mm
60.7 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
840 km
522 mi
734 km
456 mi
CO2 score
-
259 g/km
Trunk score
550 L
19.4 cu ft
565 L
20.0 cu ft
Power-to-weight score
171 hp/t
128 kW/t
5.8 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 allroad (C8) 55 TDI V6AUDI A6 Avant (4F/C6) 4.2 FSI V8
Consumption7.5 L/100 km31.4 mpg US37.7 mpg UK10.9 L/100 km21.6 mpg US25.9 mpg UK
Cost / 100 km13.13 LC100 km19.08 LC100 km
Cost / 100 mi21.12 LC100 mi30.70 LC100 mi
Annual fuel used1,125 L297 US gal247 UK gal1,635 L432 US gal360 UK gal
Annual fuel cost1,969 LC/year2,861 LC/year

Head-to-head comparisons

AUDI A6 allroad (C8) 55 TDI V6

  • Has 260 Nm more
  • Is 0.9 s quicker from 0-100 km/h
  • Uses 3.4 L/100 km less fuel
  • Has 106 km (66 mi) more estimated range

Pros

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

Cons

  • Lowest power
  • Heaviest
  • Smallest trunk

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

  • Has 6 hp more
  • Is 180 kg lighter
  • Has 20 hp/t better power-to-weight
  • Has 15 L more trunk volume

Pros

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

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 allroad (C8) 55 TDI V6
AUDI A6 Avant (4F/C6) 4.2 FSI V8
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