Car comparison

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

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

New comparison

AUDI S4 Avant (B9)

3.0 TDI V6

347 hp2967 ccDieselAWDAutomaticTurbochargedWagon / estate2019-2019
VS

AUDI A6 Avant (C8)

55 TFSI

340 hp2995 ccGasolineAWDAutomaticTurbochargedWagon / estate2020-2023

Comparison overview

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

Best choices

AUDI S4 Avant (B9) 3.0 TDI 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
    347 hp
    259 kW
  • Highest torque
    700 Nm
    516 lb-ft
  • Lightest
    1,820 kg
    4,012 lb
  • Best power-to-weight
    191 hp/t
    142 kW/t
    5.2 kg/hp
  • Lowest combined fuel consumption
    6.3 L/100 km
    37.3 mpg US
    44.8 mpg UK
  • Lowest city consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest highway consumption
    5.8 L/100 km
    40.6 mpg US
    48.7 mpg UK
  • Lowest CO2 emissions
    165 g/km
  • Best estimated range
    921 km
    572 mi
  • Best overall score
    77/100
  • Best performance score
    75/100
  • Best economy score
    90/100

Specification comparison

Specification comparison
ModelAUDIS4 Avant (B9)3.0 TDI V6AUDIA6 Avant (C8)55 TFSI
Power
347hp259kW
340hp254kW
Torque
700Nm516lb-ft
500Nm369lb-ft
Curb weight
1,820kg4,012lb
1,835kg4,045lb
Gross weight
2,375kg5,236lb
2,480kg5,467lb
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
51.3s99% target: 257 km/h / 160 mph
Calculated
54.9s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.9s
5.3s
0-200 km/h
15.5s
Calculated
16.7s
Calculated
0-60 mph
4.7s
Calculated
5.1s
Calculated
Fuel consumption
6.3L/100 km37.3mpg US44.8mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Fuel consumption city
7.2L/100 km32.7mpg US39.2mpg UK
9.7L/100 km24.2mpg US29.1mpg UK
Fuel consumption highway
5.8L/100 km40.6mpg US48.7mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Quarter mile
12.9s
Calculated
13.3s
Calculated
Power-to-weight
191hp/t142kW/t86hp/1000 lb
Calculated
185hp/t138kW/t84hp/1000 lb
Calculated
Torque-to-weight
385Nm/t257lb-ft/ton
Calculated
272Nm/t182lb-ft/ton
Calculated
Estimated range
921km572mi
Calculated
851km529mi
Calculated
Displacement
2,967cc181cu in
2,995cc183cu in
Length
4,750mm187in
4,939mm194in
Width
1,842mm73in
1,886mm74in
Height
1,437mm57in
1,467mm58in
Wheelbase
2,825mm111in
2,924mm115in
Front track
1,565mm62in
1,630mm64in
Rear track
1,546mm61in
1,617mm64in
Trunk volume
420L
565L
Max trunk volume
1,435L
-
Doors
5
5
Seats
5
5
Fuel tank
58L
63L
CO2 emissions
165g/km
169g/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 TDI V6AUDI A6 Avant (C8) 55 TFSIPowerTorque
  • AUDI S4 Avant (B9) 3.0 TDI V6: Power / Torque
  • AUDI A6 Avant (C8) 55 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIS4 Avant (B9)3.0 TDI V63,850 rpm2,500-3,100 rpm4,100 rpm
AUDIA6 Avant (C8)55 TFSI5,000-6,400 rpm1,370-4,500 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS4 Avant (B9)3.0 TDI V6AUDIA6 Avant (C8)55 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
5.1 s
0-100 km/h
0-62 mph
4.9 s
5.3 s
0-200 km/h
0-124 mph
15.5 s
16.7 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
2.4 s
330 ft
101 m
5.8 s
6.0 s
1/8 mile
201 m
8.5 s
8.8 s
1000 ft
305 m
10.9 s
11.3 s
1/4 mile
402 m
12.9 s
13.3 s
Trap speed
1/4 mile
402 m
184 km/h
114 mph
180 km/h
112 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS4 Avant (B9)3.0 TDI V6
347 hp
259 kW
AUDIA6 Avant (C8)55 TFSI
340 hp
254 kW

AUDI S4 Avant (B9) 3.0 TDI V6 has 7 hp more than AUDI A6 Avant (C8) 55 TFSI.

The biggest power difference is between AUDI A6 Avant (C8) 55 TFSI and AUDI S4 Avant (B9) 3.0 TDI V6: 7 hp (5 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIS4 Avant (B9)3.0 TDI V6
700 Nm
516 lb-ft
AUDIA6 Avant (C8)55 TFSI
500 Nm
369 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 TDI V6
1,820 kg
4,012 lb
AUDIA6 Avant (C8)55 TFSI
1,835 kg
4,045 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 TDI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (C8)55 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
AUDIS4 Avant (B9)3.0 TDI V64.9 s
AUDIA6 Avant (C8)55 TFSI5.3 s

The biggest 0-100 km/h difference is between AUDI S4 Avant (B9) 3.0 TDI V6 and AUDI A6 Avant (C8) 55 TFSI: 0.4 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 TDI V6
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
AUDIA6 Avant (C8)55 TFSI
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

The biggest fuel consumption difference is between AUDI S4 Avant (B9) 3.0 TDI V6 and AUDI A6 Avant (C8) 55 TFSI: 1.1 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 TDI V6
191 hp/t
142 kW/t
5.2 kg/hp
AUDIA6 Avant (C8)55 TFSI
185 hp/t
138 kW/t
5.4 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 TDI V6
921 km
572 mi
AUDIA6 Avant (C8)55 TFSI
851 km
529 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS4 Avant (B9)3.0 TDI V6
347 hp
259 kW
4.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 Avant (C8)55 TFSI
340 hp
254 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
AUDIS4 Avant (B9)3.0 TDI V6
Power
347 hp
259 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
420 L
14.8 cu ft
Length
4,750 mm
187.0 in
Height
1,437 mm
56.6 in
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

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 TDI V6
Power
347 hp
259 kW
0-100 km/h4.9 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
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

AUDI S4 Avant (B9) 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
AUDIS4 Avant (B9)3.0 TDI V6
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
4.9 s
AUDIA6 Avant (C8)55 TFSI
7.4 L/100 km
31.8 mpg US
38.2 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
AUDIS4 Avant (B9)3.0 TDI V6
191 hp/t
142 kW/t
5.2 kg/hp
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
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

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS4 Avant (B9)3.0 TDI V6AUDIA6 Avant (C8)55 TFSI
Power
347 hp
259 kW
340 hp
254 kW
Torque
700 Nm
516 lb-ft
500 Nm
369 lb-ft
Acceleration
4.9 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
1,820 kg
4,012 lb
1,835 kg
4,045 lb
Fuel consumption
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
420 L
14.8 cu ft
Length
4,750 mm
187.0 in
Height
1,437 mm
56.6 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
921 km
572 mi
851 km
529 mi
CO2 score
165 g/km
169 g/km
Trunk score
420 L
14.8 cu ft
565 L
20.0 cu ft
Power-to-weight score
191 hp/t
142 kW/t
5.2 kg/hp
185 hp/t
138 kW/t
5.4 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 TDI V6AUDI A6 Avant (C8) 55 TFSI
Consumption6.3 L/100 km37.3 mpg US44.8 mpg UK7.4 L/100 km31.8 mpg US38.2 mpg UK
Cost / 100 km11.03 LC100 km12.95 LC100 km
Cost / 100 mi17.74 LC100 mi20.84 LC100 mi
Annual fuel used945 L250 US gal208 UK gal1,110 L293 US gal244 UK gal
Annual fuel cost1,654 LC/year1,943 LC/year

Head-to-head comparisons

AUDI S4 Avant (B9) 3.0 TDI V6

  • Has 7 hp more
  • Has 200 Nm more
  • Is 15 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Uses 1.1 L/100 km less fuel
  • Has 5 hp/t better power-to-weight
  • Has 69 km (43 mi) more estimated range
  • Emits 4 g/km less CO2

Pros

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

Cons

  • Smallest trunk

AUDI A6 Avant (C8) 55 TFSI

  • Has 145 L more trunk volume

Pros

  • Largest trunk

Cons

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

Choose cars to compare

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