Car comparison

AUDI S7 Sportback (C8) 2.9 TFSI V6vsAUDI A7 Sportback (C8) 55 TFSI

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

New comparison

AUDI S7 Sportback (C8)

2.9 TFSI V6

444 hp2894 ccGasolineAWDAutomaticTwin-turboLiftback / fastback2019-2023
VS

AUDI A7 Sportback (C8)

55 TFSI

340 hp2995 ccGasolineAWDAutomaticTurbochargedLiftback / fastback2017-2023

Comparison overview

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

Best choices

AUDI S7 Sportback (C8) 2.9 TFSI V6

  • Quickest 0-100 km/h
    4.6 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    444 hp
    331 kW
  • Highest torque
    600 Nm
    443 lb-ft
  • Best power-to-weight
    198 hp/t
    147 kW/t
    5.1 kg/hp
  • Largest trunk
    697 L
  • Best overall score
    80/100
  • Best performance score
    76/100
  • Best practicality score
    87/100

AUDI A7 Sportback (C8) 55 TFSI

  • Lightest
    1,815 kg
    4,001 lb
  • Lowest combined fuel consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest city consumption
    9.3 L/100 km
    25.3 mpg US
    30.4 mpg UK
  • Lowest highway consumption
    5.9 L/100 km
    39.9 mpg US
    47.9 mpg UK
  • Best estimated range
    875 km
    544 mi
  • Best economy score
    87/100

Specification comparison

Specification comparison
ModelAUDIS7 Sportback (C8)2.9 TFSI V6AUDIA7 Sportback (C8)55 TFSI
Power
444hp331kW
340hp254kW
Torque
600Nm443lb-ft
500Nm369lb-ft
Curb weight
2,248kg4,956lb
1,815kg4,001lb
Gross weight-
2,470kg5,445lb
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
84.2s99% target: 257 km/h / 160 mph
Calculated
87.0s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.6s
5.3s
0-200 km/h
19.2s
Calculated
21.0s
Calculated
0-60 mph
4.3s
Calculated
5.0s
Calculated
Fuel consumption
10.7L/100 km22mpg US26.4mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Fuel consumption city
13.1L/100 km18mpg US21.6mpg UK
9.3L/100 km25.3mpg US30.4mpg UK
Fuel consumption highway
8.4L/100 km28mpg US33.6mpg UK
5.9L/100 km39.9mpg US47.9mpg UK
Quarter mile
12.9s
Calculated
13.5s
Calculated
Power-to-weight
198hp/t147kW/t90hp/1000 lb
Calculated
187hp/t140kW/t85hp/1000 lb
Calculated
Torque-to-weight
267Nm/t179lb-ft/ton
Calculated
275Nm/t184lb-ft/ton
Calculated
Estimated range
682km424mi
Calculated
875km544mi
Calculated
Displacement
2,894cc177cu in
2,995cc183cu in
Length
4,978mm196in
4,969mm196in
Width
1,908mm75in
1,908mm75in
Height
1,417mm56in
1,422mm56in
Wheelbase
2,929mm115in
2,926mm115in
Front track
1,654mm65in
1,651mm65in
Rear track
1,636mm64in
1,637mm64in
Trunk volume
697L
535L
Doors
5
5
Seats
5
5
Fuel tank
73L
63L
CO2 emissions-
163g/km

Performance charts

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

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS7 Sportback (C8)2.9 TFSI V6AUDIA7 Sportback (C8)55 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
5.0 s
0-100 km/h
0-62 mph
4.6 s
5.3 s
0-200 km/h
0-124 mph
19.2 s
21.0 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
1.9 s
2.1 s
330 ft
101 m
5.4 s
5.8 s
1/8 mile
201 m
8.3 s
8.8 s
1000 ft
305 m
10.8 s
11.3 s
1/4 mile
402 m
12.9 s
13.5 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
167 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS7 Sportback (C8)2.9 TFSI V6
444 hp
331 kW
AUDIA7 Sportback (C8)55 TFSI
340 hp
254 kW

AUDI S7 Sportback (C8) 2.9 TFSI V6 has 104 hp more than AUDI A7 Sportback (C8) 55 TFSI.

The biggest power difference is between AUDI A7 Sportback (C8) 55 TFSI and AUDI S7 Sportback (C8) 2.9 TFSI V6: 104 hp (78 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIS7 Sportback (C8)2.9 TFSI V6
600 Nm
443 lb-ft
AUDIA7 Sportback (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
AUDIS7 Sportback (C8)2.9 TFSI V6
2,248 kg
4,956 lb
AUDIA7 Sportback (C8)55 TFSI
1,815 kg
4,001 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIS7 Sportback (C8)2.9 TFSI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA7 Sportback (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
AUDIS7 Sportback (C8)2.9 TFSI V64.6 s
AUDIA7 Sportback (C8)55 TFSI5.3 s

The biggest 0-100 km/h difference is between AUDI S7 Sportback (C8) 2.9 TFSI V6 and AUDI A7 Sportback (C8) 55 TFSI: 0.7 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AUDIS7 Sportback (C8)2.9 TFSI V6
10.7 L/100 km
22.0 mpg US
26.4 mpg UK
AUDIA7 Sportback (C8)55 TFSI
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

The biggest fuel consumption difference is between AUDI A7 Sportback (C8) 55 TFSI and AUDI S7 Sportback (C8) 2.9 TFSI V6: 3.5 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
AUDIS7 Sportback (C8)2.9 TFSI V6
198 hp/t
147 kW/t
5.1 kg/hp
AUDIA7 Sportback (C8)55 TFSI
187 hp/t
140 kW/t
5.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIS7 Sportback (C8)2.9 TFSI V6
682 km
424 mi
AUDIA7 Sportback (C8)55 TFSI
875 km
544 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS7 Sportback (C8)2.9 TFSI V6
444 hp
331 kW
4.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA7 Sportback (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
AUDIS7 Sportback (C8)2.9 TFSI V6
Power
444 hp
331 kW
0-100 km/h4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
697 L
24.6 cu ft
Length
4,978 mm
196.0 in
Height
1,417 mm
55.8 in
AUDIA7 Sportback (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
535 L
18.9 cu ft
Length
4,969 mm
195.6 in
Height
1,422 mm
56.0 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
AUDIS7 Sportback (C8)2.9 TFSI V6
Power
444 hp
331 kW
0-100 km/h4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.7 L/100 km
22.0 mpg US
26.4 mpg UK
AUDIA7 Sportback (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
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

AUDI S7 Sportback (C8) 2.9 TFSI 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
AUDIS7 Sportback (C8)2.9 TFSI V6
10.7 L/100 km
22.0 mpg US
26.4 mpg UK
4.6 s
AUDIA7 Sportback (C8)55 TFSI
7.2 L/100 km
32.7 mpg US
39.2 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
AUDIS7 Sportback (C8)2.9 TFSI V6
198 hp/t
147 kW/t
5.1 kg/hp
10.7 L/100 km
22.0 mpg US
26.4 mpg UK
AUDIA7 Sportback (C8)55 TFSI
187 hp/t
140 kW/t
5.3 kg/hp
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS7 Sportback (C8)2.9 TFSI V6AUDIA7 Sportback (C8)55 TFSI
Power
444 hp
331 kW
340 hp
254 kW
Torque
600 Nm
443 lb-ft
500 Nm
369 lb-ft
Acceleration
4.6 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
2,248 kg
4,956 lb
1,815 kg
4,001 lb
Fuel consumption
10.7 L/100 km
22.0 mpg US
26.4 mpg UK
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
697 L
24.6 cu ft
Length
4,978 mm
196.0 in
Height
1,417 mm
55.8 in
Doors/seats
5 doors
5 seats
Trunk
535 L
18.9 cu ft
Length
4,969 mm
195.6 in
Height
1,422 mm
56.0 in
Range score
682 km
424 mi
875 km
544 mi
CO2 score
-
163 g/km
Trunk score
697 L
24.6 cu ft
535 L
18.9 cu ft
Power-to-weight score
198 hp/t
147 kW/t
5.1 kg/hp
187 hp/t
140 kW/t
5.3 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 S7 Sportback (C8) 2.9 TFSI V6AUDI A7 Sportback (C8) 55 TFSI
Consumption10.7 L/100 km22 mpg US26.4 mpg UK7.2 L/100 km32.7 mpg US39.2 mpg UK
Cost / 100 km18.72 LC100 km12.60 LC100 km
Cost / 100 mi30.13 LC100 mi20.28 LC100 mi
Annual fuel used1,605 L424 US gal353 UK gal1,080 L285 US gal238 UK gal
Annual fuel cost2,809 LC/year1,890 LC/year

Head-to-head comparisons

AUDI S7 Sportback (C8) 2.9 TFSI V6

  • Has 104 hp more
  • Has 100 Nm more
  • Is 0.7 s quicker from 0-100 km/h
  • Has 10 hp/t better power-to-weight
  • Has 162 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 A7 Sportback (C8) 55 TFSI

  • Is 433 kg lighter
  • Uses 3.5 L/100 km less fuel
  • Has 193 km (120 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 S7 Sportback (C8) 2.9 TFSI V6
AUDI A7 Sportback (C8) 55 TFSI
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2 vehicles selected

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