Car comparison

AUDI A6 allroad (C8) 55 TDI V6vsAUDI A6 Avant (C9) 3.0 TDI V6

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

New comparison

AUDI A6 allroad (C8)

55 TDI V6

349 hp2967 ccDieselAWDAutomaticTurbochargedWagon / estate2019-2020
VS

AUDI A6 Avant (C9)

3.0 TDI V6

299 hp2967 ccDieselAWDAutomaticTurbochargedWagon / estate2025-present

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
  • Most powerful
    349 hp
    260 kW
  • Highest torque
    700 Nm
    516 lb-ft
  • Lightest
    2,010 kg
    4,431 lb
  • Best power-to-weight
    174 hp/t
    129 kW/t
    5.8 kg/hp
  • Best estimated range
    955 km
    593 mi
  • Largest trunk
    565 L
  • Best overall score
    77/100
  • Best performance score
    73/100
  • Best practicality score
    87/100

Specification comparison

Specification comparison
ModelAUDIA6 allroad (C8)55 TDI V6AUDIA6 Avant (C9)3.0 TDI V6
Power
349hp260kW
299hp223kW
Torque
700Nm516lb-ft
580Nm428lb-ft
Curb weight
2,010kg4,431lb
2,080kg4,586lb
Gross weight
2,695kg5,941lb
2,710kg5,975lb
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
58.6s99% target: 257 km/h / 160 mph
Calculated
58.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.2s
5.3s
0-200 km/h
17.1s
Calculated
17.3s
Calculated
0-60 mph
5.0s
Calculated
5.1s
Calculated
Fuel consumption
6.6L/100 km35.6mpg US42.8mpg UK
6.3L/100 km37.3mpg US44.8mpg UK
Fuel consumption city
7.9L/100 km29.8mpg US35.8mpg UK
-
Fuel consumption highway
5.8L/100 km40.6mpg US48.7mpg UK
-
Quarter mile
13.2s
Calculated
13.3s
Calculated
Power-to-weight
174hp/t129kW/t79hp/1000 lb
Calculated
144hp/t107kW/t65hp/1000 lb
Calculated
Torque-to-weight
348Nm/t233lb-ft/ton
Calculated
279Nm/t187lb-ft/ton
Calculated
Estimated range
955km593mi
Calculated
952km592mi
Calculated
Displacement
2,967cc181cu in
2,967cc181cu in
Length
4,951mm195in
4,999mm197in
Width
1,902mm75in
1,875mm74in
Height
1,542mm61in
1,452mm57in
Wheelbase
2,925mm115in
2,923mm115in
Front track
1,645mm65in
1,626mm64in
Rear track
1,611mm63in
1,610mm63in
Ground clearance
184mm7in
-
Trunk volume
565L
466L
Max trunk volume
1,680L
1,497L
Doors
5
5
Seats
5
5
Fuel tank
63L
60L

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 (C9) 3.0 TDI V6PowerTorque
  • AUDI A6 allroad (C8) 55 TDI V6: Power / Torque
  • AUDI A6 Avant (C9) 3.0 TDI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 allroad (C8)55 TDI V63,850 rpm2,500-3,100 rpm4,100 rpm
AUDIA6 Avant (C9)3.0 TDI V63,620-3,750 rpm1,500-3,620 rpm4,000 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 allroad (C8)55 TDI V6AUDIA6 Avant (C9)3.0 TDI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.0 s
5.1 s
0-100 km/h
0-62 mph
5.2 s
5.3 s
0-200 km/h
0-124 mph
17.1 s
17.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
5.9 s
5.9 s
1/8 mile
201 m
8.7 s
8.8 s
1000 ft
305 m
11.2 s
11.3 s
1/4 mile
402 m
13.2 s
13.3 s
Trap speed
1/4 mile
402 m
178 km/h
111 mph
178 km/h
110 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 allroad (C8)55 TDI V6
349 hp
260 kW
AUDIA6 Avant (C9)3.0 TDI V6
299 hp
223 kW

AUDI A6 allroad (C8) 55 TDI V6 has 50 hp more than AUDI A6 Avant (C9) 3.0 TDI V6.

The biggest power difference is between AUDI A6 Avant (C9) 3.0 TDI V6 and AUDI A6 allroad (C8) 55 TDI V6: 50 hp (37 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 (C9)3.0 TDI V6
580 Nm
428 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 (C9)3.0 TDI V6
2,080 kg
4,586 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 (C9)3.0 TDI V6
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 (C9)3.0 TDI V65.3 s

The biggest 0-100 km/h difference is between AUDI A6 allroad (C8) 55 TDI V6 and AUDI A6 Avant (C9) 3.0 TDI V6: 0.1 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
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
AUDIA6 Avant (C9)3.0 TDI V6
6.3 L/100 km
37.3 mpg US
44.8 mpg UK

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
174 hp/t
129 kW/t
5.8 kg/hp
AUDIA6 Avant (C9)3.0 TDI V6
144 hp/t
107 kW/t
7.0 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
955 km
593 mi
AUDIA6 Avant (C9)3.0 TDI V6
952 km
592 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 allroad (C8)55 TDI V6
349 hp
260 kW
5.2 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (C9)3.0 TDI V6
299 hp
223 kW
5.3 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
349 hp
260 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
565 L
20.0 cu ft
Length
4,951 mm
194.9 in
Height
1,542 mm
60.7 in
AUDIA6 Avant (C9)3.0 TDI V6
Power
299 hp
223 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
466 L
16.5 cu ft
Length
4,999 mm
196.8 in
Height
1,452 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 allroad (C8)55 TDI V6
Power
349 hp
260 kW
0-100 km/h5.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
AUDIA6 Avant (C9)3.0 TDI V6
Power
299 hp
223 kW
0-100 km/h5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.3 L/100 km
37.3 mpg US
44.8 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
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
5.2 s
AUDIA6 Avant (C9)3.0 TDI V6
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
5.3 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
174 hp/t
129 kW/t
5.8 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
AUDIA6 Avant (C9)3.0 TDI V6
144 hp/t
107 kW/t
7.0 kg/hp
6.3 L/100 km
37.3 mpg US
44.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 allroad (C8)55 TDI V6AUDIA6 Avant (C9)3.0 TDI V6
Power
349 hp
260 kW
299 hp
223 kW
Torque
700 Nm
516 lb-ft
580 Nm
428 lb-ft
Acceleration
5.2 s
5.3 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
2,080 kg
4,586 lb
Fuel consumption
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
565 L
20.0 cu ft
Length
4,951 mm
194.9 in
Height
1,542 mm
60.7 in
Doors/seats
5 doors
5 seats
Trunk
466 L
16.5 cu ft
Length
4,999 mm
196.8 in
Height
1,452 mm
57.2 in
Range score
955 km
593 mi
952 km
592 mi
Trunk score
565 L
20.0 cu ft
466 L
16.5 cu ft
Power-to-weight score
174 hp/t
129 kW/t
5.8 kg/hp
144 hp/t
107 kW/t
7.0 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 (C9) 3.0 TDI V6
Consumption6.6 L/100 km35.6 mpg US42.8 mpg UK6.3 L/100 km37.3 mpg US44.8 mpg UK
Cost / 100 km11.55 LC100 km11.03 LC100 km
Cost / 100 mi18.59 LC100 mi17.74 LC100 mi
Annual fuel used990 L262 US gal218 UK gal945 L250 US gal208 UK gal
Annual fuel cost1,733 LC/year1,654 LC/year

Head-to-head comparisons

AUDI A6 allroad (C8) 55 TDI V6

  • Has 50 hp more
  • Has 120 Nm more
  • Is 70 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 30 hp/t better power-to-weight
  • Has 2 km (1 mi) more estimated range
  • Has 99 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Highest combined fuel consumption

AUDI A6 Avant (C9) 3.0 TDI V6

  • Uses 0.3 L/100 km less fuel

Pros

  • Lowest combined fuel consumption

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 allroad (C8) 55 TDI V6
AUDI A6 Avant (C9) 3.0 TDI V6
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