Car comparison

AUDI RS6 Avant (C8) 4.0 TFSI V8vsAUDI A6 allroad (C8) 55 TFSI V6

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

New comparison

AUDI RS6 Avant (C8)

4.0 TFSI V8

600 hp3996 ccGasolineAWDAutomaticTwin-turboWagon / estate2019-2025
VS

AUDI A6 allroad (C8)

55 TFSI V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedWagon / estate2019-2025

Comparison overview

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

Best choices

AUDI RS6 Avant (C8) 4.0 TFSI V8

  • Quickest 0-100 km/h
    3.6 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    600 hp
    447 kW
  • Highest torque
    800 Nm
    590 lb-ft
  • Best power-to-weight
    289 hp/t
    216 kW/t
    3.5 kg/hp
  • Largest trunk
    565 L
  • Best overall score
    86/100
  • Best performance score
    85/100
  • Best practicality score
    87/100

AUDI A6 allroad (C8) 55 TFSI V6

  • Lightest
    1,870 kg
    4,123 lb
  • Lowest combined fuel consumption
    9.1 L/100 km
    25.8 mpg US
    31.0 mpg UK
  • Best estimated range
    692 km
    430 mi
  • Best economy score
    82/100

Specification comparison

Specification comparison
ModelAUDIRS6 Avant (C8)4.0 TFSI V8AUDIA6 allroad (C8)55 TFSI V6
Power
600hp447kW
340hp254kW
Torque
800Nm590lb-ft
500Nm369lb-ft
Curb weight
2,075kg4,575lb
1,870kg4,123lb
Gross weight
2,740kg6,041lb
2,520kg5,556lb
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
41.7s99% target: 257 km/h / 160 mph
Calculated
56.3s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.6s
5.2s
0-200 km/h
12.0s
16.8s
Calculated
0-60 mph
3.4s
Calculated
5.0s
Calculated
Fuel consumption
11.7L/100 km20.1mpg US24.1mpg UK
9.1L/100 km25.8mpg US31.0mpg UK
Fuel consumption city
16.2L/100 km14.5mpg US17.4mpg UK
-
Fuel consumption highway
8.9L/100 km26.4mpg US31.7mpg UK
-
Quarter mile
11.6s
Calculated
13.2s
Calculated
Power-to-weight
289hp/t216kW/t131hp/1000 lb
Calculated
182hp/t136kW/t82hp/1000 lb
Calculated
Torque-to-weight
386Nm/t258lb-ft/ton
Calculated
267Nm/t179lb-ft/ton
Calculated
Estimated range
624km388mi
Calculated
692km430mi
Calculated
Displacement
3,996cc244cu in
2,995cc183cu in
Length
4,939mm194in
4,951mm195in
Width
1,886mm74in
1,902mm75in
Height
1,467mm58in
1,542mm61in
Wheelbase
2,924mm115in
2,925mm115in
Front track
1,668mm66in
1,645mm65in
Rear track
1,650mm65in
1,611mm63in
Ground clearance-
184mm7in
Trunk volume
565L
550L
Max trunk volume
1,680L
1,660L
Doors
5
5
Seats
5
5
Fuel tank
73L
63L
CO2 emissions
268g/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 RS6 Avant (C8) 4.0 TFSI V8AUDI A6 allroad (C8) 55 TFSI V6PowerTorque
  • AUDI RS6 Avant (C8) 4.0 TFSI V8: Power / Torque
  • AUDI A6 allroad (C8) 55 TFSI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIRS6 Avant (C8)4.0 TFSI V86,000-6,250 rpm2,050-4,500 rpm6,500 rpm
AUDIA6 allroad (C8)55 TFSI V65,200-6,400 rpm1,370-4,500 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIRS6 Avant (C8)4.0 TFSI V8AUDIA6 allroad (C8)55 TFSI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
3.4 s
5.0 s
0-100 km/h
0-62 mph
3.6 s
5.2 s
0-200 km/h
0-124 mph
12.0 s
16.8 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
1.9 s
2.3 s
330 ft
101 m
5.0 s
5.9 s
1/8 mile
201 m
7.5 s
8.8 s
1000 ft
305 m
9.7 s
11.2 s
1/4 mile
402 m
11.6 s
13.2 s
Trap speed
1/4 mile
402 m
197 km/h
122 mph
179 km/h
112 mph

Power comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C8)4.0 TFSI V8
600 hp
447 kW
AUDIA6 allroad (C8)55 TFSI V6
340 hp
254 kW

AUDI RS6 Avant (C8) 4.0 TFSI V8 has 260 hp more than AUDI A6 allroad (C8) 55 TFSI V6.

The biggest power difference is between AUDI A6 allroad (C8) 55 TFSI V6 and AUDI RS6 Avant (C8) 4.0 TFSI V8: 260 hp (194 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C8)4.0 TFSI V8
800 Nm
590 lb-ft
AUDIA6 allroad (C8)55 TFSI V6
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C8)4.0 TFSI V8
2,075 kg
4,575 lb
AUDIA6 allroad (C8)55 TFSI V6
1,870 kg
4,123 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C8)4.0 TFSI V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 allroad (C8)55 TFSI 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
AUDIRS6 Avant (C8)4.0 TFSI V83.6 s
AUDIA6 allroad (C8)55 TFSI V65.2 s

The biggest 0-100 km/h difference is between AUDI RS6 Avant (C8) 4.0 TFSI V8 and AUDI A6 allroad (C8) 55 TFSI V6: 1.6 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C8)4.0 TFSI V8
11.7 L/100 km
20.1 mpg US
24.1 mpg UK
AUDIA6 allroad (C8)55 TFSI V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

The biggest fuel consumption difference is between AUDI A6 allroad (C8) 55 TFSI V6 and AUDI RS6 Avant (C8) 4.0 TFSI V8: 2.6 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
AUDIRS6 Avant (C8)4.0 TFSI V8
289 hp/t
216 kW/t
3.5 kg/hp
AUDIA6 allroad (C8)55 TFSI V6
182 hp/t
136 kW/t
5.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIRS6 Avant (C8)4.0 TFSI V8
624 km
388 mi
AUDIA6 allroad (C8)55 TFSI V6
692 km
430 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIRS6 Avant (C8)4.0 TFSI V8
600 hp
447 kW
3.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 allroad (C8)55 TFSI V6
340 hp
254 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
AUDIRS6 Avant (C8)4.0 TFSI V8
Power
600 hp
447 kW
0-100 km/h3.6 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
AUDIA6 allroad (C8)55 TFSI V6
Power
340 hp
254 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

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
AUDIRS6 Avant (C8)4.0 TFSI V8
Power
600 hp
447 kW
0-100 km/h3.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
11.7 L/100 km
20.1 mpg US
24.1 mpg UK
AUDIA6 allroad (C8)55 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

AUDI RS6 Avant (C8) 4.0 TFSI V8 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
AUDIRS6 Avant (C8)4.0 TFSI V8
11.7 L/100 km
20.1 mpg US
24.1 mpg UK
3.6 s
AUDIA6 allroad (C8)55 TFSI V6
9.1 L/100 km
25.8 mpg US
31.0 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
AUDIRS6 Avant (C8)4.0 TFSI V8
289 hp/t
216 kW/t
3.5 kg/hp
11.7 L/100 km
20.1 mpg US
24.1 mpg UK
AUDIA6 allroad (C8)55 TFSI V6
182 hp/t
136 kW/t
5.5 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIRS6 Avant (C8)4.0 TFSI V8AUDIA6 allroad (C8)55 TFSI V6
Power
600 hp
447 kW
340 hp
254 kW
Torque
800 Nm
590 lb-ft
500 Nm
369 lb-ft
Acceleration
3.6 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
2,075 kg
4,575 lb
1,870 kg
4,123 lb
Fuel consumption
11.7 L/100 km
20.1 mpg US
24.1 mpg UK
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Practicality
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
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
Range score
624 km
388 mi
692 km
430 mi
CO2 score
268 g/km
-
Trunk score
565 L
20.0 cu ft
550 L
19.4 cu ft
Power-to-weight score
289 hp/t
216 kW/t
3.5 kg/hp
182 hp/t
136 kW/t
5.5 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 RS6 Avant (C8) 4.0 TFSI V8AUDI A6 allroad (C8) 55 TFSI V6
Consumption11.7 L/100 km20.1 mpg US24.1 mpg UK9.1 L/100 km25.8 mpg US31 mpg UK
Cost / 100 km20.47 LC100 km15.92 LC100 km
Cost / 100 mi32.95 LC100 mi25.63 LC100 mi
Annual fuel used1,755 L464 US gal386 UK gal1,365 L361 US gal300 UK gal
Annual fuel cost3,071 LC/year2,389 LC/year

Head-to-head comparisons

AUDI RS6 Avant (C8) 4.0 TFSI V8

  • Has 260 hp more
  • Has 300 Nm more
  • Is 1.6 s quicker from 0-100 km/h
  • Has 107 hp/t better power-to-weight
  • Has 15 L more trunk volume

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest

AUDI A6 allroad (C8) 55 TFSI V6

  • Is 205 kg lighter
  • Uses 2.6 L/100 km less fuel
  • Has 68 km (42 mi) more estimated range

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI RS6 Avant (C8) 4.0 TFSI V8
AUDI A6 allroad (C8) 55 TFSI V6
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