Car comparison

AUDI A6 allroad (C9) 3.0 TDI V6vsAUDI A6 Avant (C8) 45 TFSI

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

New comparison

AUDI A6 allroad (C9)

3.0 TDI V6

299 hp2967 ccDieselAWDAutomaticTurbochargedWagon / estate2026-present
VS

AUDI A6 Avant (C8)

45 TFSI

245 hp1984 ccGasolineAWDAutomaticTurbochargedWagon / estate2018-2020

Comparison overview

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

Best choices

AUDI A6 allroad (C9) 3.0 TDI V6

  • Quickest 0-100 km/h
    5.4 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    299 hp
    223 kW
  • Highest torque
    580 Nm
    428 lb-ft
  • Best power-to-weight
    141 hp/t
    105 kW/t
    7.1 kg/hp
  • Lowest combined fuel consumption
    6.4 L/100 km
    36.8 mpg US
    44.1 mpg UK
  • Best estimated range
    938 km
    583 mi
  • Best overall score
    72/100
  • Best performance score
    67/100
  • Best economy score
    90/100

Specification comparison

Specification comparison
ModelAUDIA6 allroad (C9)3.0 TDI V6AUDIA6 Avant (C8)45 TFSI
Power
299hp223kW
245hp183kW
Torque
580Nm428lb-ft
370Nm273lb-ft
Curb weight
2,120kg4,674lb
1,760kg3,880lb
Gross weight
2,730kg6,019lb
2,400kg5,291lb
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
66.0s99% target: 257 km/h / 160 mph
Calculated
69.9s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.4s
6.2s
0-200 km/h
18.5s
Calculated
20.4s
Calculated
0-60 mph
5.1s
Calculated
5.9s
Calculated
Fuel consumption
6.4L/100 km36.8mpg US44.1mpg UK
6.8L/100 km34.6mpg US41.5mpg UK
Fuel consumption city-
8.4L/100 km28mpg US33.6mpg UK
Fuel consumption highway-
5.9L/100 km39.9mpg US47.9mpg UK
Quarter mile
13.5s
Calculated
14.2s
Calculated
Power-to-weight
141hp/t105kW/t64hp/1000 lb
Calculated
139hp/t104kW/t63hp/1000 lb
Calculated
Torque-to-weight
274Nm/t183lb-ft/ton
Calculated
210Nm/t141lb-ft/ton
Calculated
Estimated range
938km583mi
Calculated
926km576mi
Calculated
Displacement
2,967cc181cu in
1,984cc121cu in
Length
5,016mm197in
4,939mm194in
Width
1,986mm78in
1,886mm74in
Height
1,508mm59in
1,467mm58in
Wheelbase
2,932mm115in
2,924mm115in
Front track
1,700mm67in
1,630mm64in
Rear track
1,680mm66in
1,617mm64in
Trunk volume
466L
565L
Max trunk volume
1,497L
-
Doors
5
5
Seats
5
5
Fuel tank
60L
63L
CO2 emissions-
156g/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 (C9) 3.0 TDI V6AUDI A6 Avant (C8) 45 TFSIPowerTorque
  • AUDI A6 allroad (C9) 3.0 TDI V6: Power / Torque
  • AUDI A6 Avant (C8) 45 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA6 allroad (C9)3.0 TDI V63,620-3,750 rpm1,500-3,620 rpm4,000 rpm
AUDIA6 Avant (C8)45 TFSI5,000-6,500 rpm1,600-4,300 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA6 allroad (C9)3.0 TDI V6AUDIA6 Avant (C8)45 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
5.1 s
5.9 s
0-100 km/h
0-62 mph
5.4 s
6.2 s
0-200 km/h
0-124 mph
18.5 s
20.4 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
6.4 s
1/8 mile
201 m
8.9 s
9.4 s
1000 ft
305 m
11.4 s
12.0 s
1/4 mile
402 m
13.5 s
14.2 s
Trap speed
1/4 mile
402 m
174 km/h
108 mph
169 km/h
105 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA6 allroad (C9)3.0 TDI V6
299 hp
223 kW
AUDIA6 Avant (C8)45 TFSI
245 hp
183 kW

AUDI A6 allroad (C9) 3.0 TDI V6 has 54 hp more than AUDI A6 Avant (C8) 45 TFSI.

The biggest power difference is between AUDI A6 Avant (C8) 45 TFSI and AUDI A6 allroad (C9) 3.0 TDI V6: 54 hp (40 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA6 allroad (C9)3.0 TDI V6
580 Nm
428 lb-ft
AUDIA6 Avant (C8)45 TFSI
370 Nm
273 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIA6 allroad (C9)3.0 TDI V6
2,120 kg
4,674 lb
AUDIA6 Avant (C8)45 TFSI
1,760 kg
3,880 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 (C9)3.0 TDI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (C8)45 TFSI
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 (C9)3.0 TDI V65.4 s
AUDIA6 Avant (C8)45 TFSI6.2 s

The biggest 0-100 km/h difference is between AUDI A6 allroad (C9) 3.0 TDI V6 and AUDI A6 Avant (C8) 45 TFSI: 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 allroad (C9)3.0 TDI V6
6.4 L/100 km
36.8 mpg US
44.1 mpg UK
AUDIA6 Avant (C8)45 TFSI
6.8 L/100 km
34.6 mpg US
41.5 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 (C9)3.0 TDI V6
141 hp/t
105 kW/t
7.1 kg/hp
AUDIA6 Avant (C8)45 TFSI
139 hp/t
104 kW/t
7.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIA6 allroad (C9)3.0 TDI V6
938 km
583 mi
AUDIA6 Avant (C8)45 TFSI
926 km
576 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA6 allroad (C9)3.0 TDI V6
299 hp
223 kW
5.4 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (C8)45 TFSI
245 hp
183 kW
6.2 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 (C9)3.0 TDI V6
Power
299 hp
223 kW
0-100 km/h5.4 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
5,016 mm
197.5 in
Height
1,508 mm
59.4 in
AUDIA6 Avant (C8)45 TFSI
Power
245 hp
183 kW
0-100 km/h6.2 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
4,939 mm
194.4 in
Height
1,467 mm
57.8 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 (C9)3.0 TDI V6
Power
299 hp
223 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.4 L/100 km
36.8 mpg US
44.1 mpg UK
AUDIA6 Avant (C8)45 TFSI
Power
245 hp
183 kW
0-100 km/h6.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.8 L/100 km
34.6 mpg US
41.5 mpg UK

AUDI A6 allroad (C9) 3.0 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 (C9)3.0 TDI V6
6.4 L/100 km
36.8 mpg US
44.1 mpg UK
5.4 s
AUDIA6 Avant (C8)45 TFSI
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
6.2 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 (C9)3.0 TDI V6
141 hp/t
105 kW/t
7.1 kg/hp
6.4 L/100 km
36.8 mpg US
44.1 mpg UK
AUDIA6 Avant (C8)45 TFSI
139 hp/t
104 kW/t
7.2 kg/hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA6 allroad (C9)3.0 TDI V6AUDIA6 Avant (C8)45 TFSI
Power
299 hp
223 kW
245 hp
183 kW
Torque
580 Nm
428 lb-ft
370 Nm
273 lb-ft
Acceleration
5.4 s
6.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
2,120 kg
4,674 lb
1,760 kg
3,880 lb
Fuel consumption
6.4 L/100 km
36.8 mpg US
44.1 mpg UK
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
466 L
16.5 cu ft
Length
5,016 mm
197.5 in
Height
1,508 mm
59.4 in
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
Range score
938 km
583 mi
926 km
576 mi
CO2 score
-
156 g/km
Trunk score
466 L
16.5 cu ft
565 L
20.0 cu ft
Power-to-weight score
141 hp/t
105 kW/t
7.1 kg/hp
139 hp/t
104 kW/t
7.2 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 (C9) 3.0 TDI V6AUDI A6 Avant (C8) 45 TFSI
Consumption6.4 L/100 km36.8 mpg US44.1 mpg UK6.8 L/100 km34.6 mpg US41.5 mpg UK
Cost / 100 km11.20 LC100 km11.90 LC100 km
Cost / 100 mi18.02 LC100 mi19.15 LC100 mi
Annual fuel used960 L254 US gal211 UK gal1,020 L269 US gal224 UK gal
Annual fuel cost1,680 LC/year1,785 LC/year

Head-to-head comparisons

AUDI A6 allroad (C9) 3.0 TDI V6

  • Has 54 hp more
  • Has 210 Nm more
  • Is 0.8 s quicker from 0-100 km/h
  • Uses 0.4 L/100 km less fuel
  • Has 2 hp/t better power-to-weight
  • Has 11 km (7 mi) more estimated range

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 Avant (C8) 45 TFSI

  • Is 360 kg lighter
  • Has 99 L more trunk volume

Pros

  • Lightest
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A6 allroad (C9) 3.0 TDI V6
AUDI A6 Avant (C8) 45 TFSI
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