Car comparison

AUDI S4 Avant (B9) 3.0 TFSI V6vsAUDI A6 allroad (C8) 55 TDI V6

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

New comparison

AUDI S4 Avant (B9)

3.0 TFSI V6

354 hp2995 ccGasolineAWDAutomaticTurbochargedWagon / estate2016-2019
VS

AUDI A6 allroad (C8)

55 TDI V6

349 hp2967 ccDieselAWDAutomaticTurbochargedWagon / estate2019-2020

Comparison overview

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

Best choices

AUDI A6 allroad (C8) 55 TDI V6

  • Highest torque
    700 Nm
    516 lb-ft
  • Lowest combined fuel consumption
    6.6 L/100 km
    35.6 mpg US
    42.8 mpg UK
  • Lowest city consumption
    7.9 L/100 km
    29.8 mpg US
    35.8 mpg UK
  • Lowest highway consumption
    5.8 L/100 km
    40.6 mpg US
    48.7 mpg UK
  • Best estimated range
    955 km
    593 mi
  • Largest trunk
    565 L
  • Best overall score
    77/100
  • Best performance score
    73/100
  • Best economy score
    89/100
  • Best practicality score
    87/100

AUDI S4 Avant (B9) 3.0 TFSI V6

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    354 hp
    264 kW
  • Lightest
    1,675 kg
    3,693 lb
  • Best power-to-weight
    211 hp/t
    158 kW/t
    4.7 kg/hp

Specification comparison

Specification comparison
ModelAUDIS4 Avant (B9)3.0 TFSI V6AUDIA6 allroad (C8)55 TDI V6
Power
354hp264kW
349hp260kW
Torque
500Nm369lb-ft
700Nm516lb-ft
Curb weight
1,675kg3,693lb
2,010kg4,431lb
Gross weight
2,265kg4,993lb
2,695kg5,941lb
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
49.0s99% target: 257 km/h / 160 mph
Calculated
58.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.9s
5.2s
0-200 km/h
15.2s
Calculated
17.1s
Calculated
0-60 mph
4.7s
Calculated
5.0s
Calculated
Fuel consumption
7.6L/100 km30.9mpg US37.2mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
Fuel consumption city
10.1L/100 km23.3mpg US28.0mpg UK
7.9L/100 km29.8mpg US35.8mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
5.8L/100 km40.6mpg US48.7mpg UK
Quarter mile
12.9s
Calculated
13.2s
Calculated
Power-to-weight
211hp/t158kW/t96hp/1000 lb
Calculated
174hp/t129kW/t79hp/1000 lb
Calculated
Torque-to-weight
299Nm/t200lb-ft/ton
Calculated
348Nm/t233lb-ft/ton
Calculated
Estimated range
763km474mi
Calculated
955km593mi
Calculated
Displacement
2,995cc183cu in
2,967cc181cu in
Length
4,745mm187in
4,951mm195in
Width
1,842mm73in
1,902mm75in
Height
1,437mm57in
1,542mm61in
Wheelbase
2,825mm111in
2,925mm115in
Front track
1,565mm62in
1,645mm65in
Rear track
1,546mm61in
1,611mm63in
Ground clearance-
184mm7in
Trunk volume
505L
565L
Max trunk volume
1,510L
1,680L
Doors
5
5
Seats
5
5
Fuel tank
58L
63L
CO2 emissions
175g/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 S4 Avant (B9) 3.0 TFSI V6AUDI A6 allroad (C8) 55 TDI V6PowerTorque
  • AUDI S4 Avant (B9) 3.0 TFSI V6: Power / Torque
  • AUDI A6 allroad (C8) 55 TDI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIS4 Avant (B9)3.0 TFSI V65,400-6,400 rpm1,370-4,500 rpm6,650 rpm
AUDIA6 allroad (C8)55 TDI V63,850 rpm2,500-3,100 rpm4,100 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS4 Avant (B9)3.0 TFSI V6AUDIA6 allroad (C8)55 TDI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
5.0 s
0-100 km/h
0-62 mph
4.9 s
5.2 s
0-200 km/h
0-124 mph
15.2 s
17.1 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
Limited
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
5.8 s
5.9 s
1/8 mile
201 m
8.5 s
8.7 s
1000 ft
305 m
10.9 s
11.2 s
1/4 mile
402 m
12.9 s
13.2 s
Trap speed
1/4 mile
402 m
185 km/h
115 mph
178 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS4 Avant (B9)3.0 TFSI V6
354 hp
264 kW
AUDIA6 allroad (C8)55 TDI V6
349 hp
260 kW

AUDI S4 Avant (B9) 3.0 TFSI V6 has 5 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 S4 Avant (B9) 3.0 TFSI V6: 5 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIS4 Avant (B9)3.0 TFSI V6
500 Nm
369 lb-ft
AUDIA6 allroad (C8)55 TDI V6
700 Nm
516 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIS4 Avant (B9)3.0 TFSI V6
1,675 kg
3,693 lb
AUDIA6 allroad (C8)55 TDI V6
2,010 kg
4,431 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
AUDIS4 Avant (B9)3.0 TFSI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 allroad (C8)55 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
AUDIS4 Avant (B9)3.0 TFSI V64.9 s
AUDIA6 allroad (C8)55 TDI V65.2 s

The biggest 0-100 km/h difference is between AUDI S4 Avant (B9) 3.0 TFSI V6 and AUDI A6 allroad (C8) 55 TDI V6: 0.3 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
AUDIS4 Avant (B9)3.0 TFSI V6
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
AUDIA6 allroad (C8)55 TDI V6
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

The biggest fuel consumption difference is between AUDI A6 allroad (C8) 55 TDI V6 and AUDI S4 Avant (B9) 3.0 TFSI V6: 1.0 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
AUDIS4 Avant (B9)3.0 TFSI V6
211 hp/t
158 kW/t
4.7 kg/hp
AUDIA6 allroad (C8)55 TDI V6
174 hp/t
129 kW/t
5.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIS4 Avant (B9)3.0 TFSI V6
763 km
474 mi
AUDIA6 allroad (C8)55 TDI V6
955 km
593 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS4 Avant (B9)3.0 TFSI V6
354 hp
264 kW
4.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 allroad (C8)55 TDI V6
349 hp
260 kW
5.2 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
AUDIS4 Avant (B9)3.0 TFSI V6
Power
354 hp
264 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
505 L
17.8 cu ft
Length
4,745 mm
186.8 in
Height
1,437 mm
56.6 in
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

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
AUDIS4 Avant (B9)3.0 TFSI V6
Power
354 hp
264 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
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

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
AUDIS4 Avant (B9)3.0 TFSI V6
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
4.9 s
AUDIA6 allroad (C8)55 TDI V6
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
5.2 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
AUDIS4 Avant (B9)3.0 TFSI V6
211 hp/t
158 kW/t
4.7 kg/hp
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
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

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS4 Avant (B9)3.0 TFSI V6AUDIA6 allroad (C8)55 TDI V6
Power
354 hp
264 kW
349 hp
260 kW
Torque
500 Nm
369 lb-ft
700 Nm
516 lb-ft
Acceleration
4.9 s
5.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,675 kg
3,693 lb
2,010 kg
4,431 lb
Fuel consumption
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
505 L
17.8 cu ft
Length
4,745 mm
186.8 in
Height
1,437 mm
56.6 in
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
Range score
763 km
474 mi
955 km
593 mi
CO2 score
175 g/km
-
Trunk score
505 L
17.8 cu ft
565 L
20.0 cu ft
Power-to-weight score
211 hp/t
158 kW/t
4.7 kg/hp
174 hp/t
129 kW/t
5.8 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 S4 Avant (B9) 3.0 TFSI V6AUDI A6 allroad (C8) 55 TDI V6
Consumption7.6 L/100 km30.9 mpg US37.2 mpg UK6.6 L/100 km35.6 mpg US42.8 mpg UK
Cost / 100 km13.30 LC100 km11.55 LC100 km
Cost / 100 mi21.40 LC100 mi18.59 LC100 mi
Annual fuel used1,140 L301 US gal251 UK gal990 L262 US gal218 UK gal
Annual fuel cost1,995 LC/year1,733 LC/year

Head-to-head comparisons

AUDI S4 Avant (B9) 3.0 TFSI V6

  • Has 5 hp more
  • Is 335 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 38 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk

AUDI A6 allroad (C8) 55 TDI V6

  • Has 200 Nm more
  • Uses 1.0 L/100 km less fuel
  • Has 191 km (119 mi) more estimated range
  • Has 60 L more trunk volume

Pros

  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI S4 Avant (B9) 3.0 TFSI V6
AUDI A6 allroad (C8) 55 TDI V6
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2 vehicles selected

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