Car comparison

AUDI S6 (C7) · Facelift 2014 4.0 TFSI V8vsAUDI A8 (D4/4H) · Facelift 2013 4.0 BiTFSI V8

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

New comparison

AUDI S6 (C7) · Facelift 2014

4.0 TFSI V8

450 hp3993 ccGasolineAWDAutomaticTwin-turboSedan2014-2018
VS

AUDI A8 (D4/4H) · Facelift 2013

4.0 BiTFSI V8

435 hp3993 ccGasolineAWDAutomaticTwin-turboSedan2013-2017

Comparison overview

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

Best choices

AUDI S6 (C7) Facelift 2014 4.0 TFSI V8

  • Quickest 0-100 km/h
    4.4 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    450 hp
    336 kW
  • Lightest
    1,895 kg
    4,178 lb
  • Best power-to-weight
    237 hp/t
    177 kW/t
    4.2 kg/hp
  • Lowest highway consumption
    6.9 L/100 km
    34.1 mpg US
    40.9 mpg UK
  • Largest trunk
    530 L
  • Best overall score
    78/100
  • Best economy score
    82/100
  • Best practicality score
    77/100

AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI V8

  • Highest torque
    600 Nm
    443 lb-ft
  • Lowest combined fuel consumption
    9.1 L/100 km
    25.8 mpg US
    31.0 mpg UK
  • Lowest city consumption
    12.6 L/100 km
    18.7 mpg US
    22.4 mpg UK
  • Lowest CO2 emissions
    213 g/km
  • Best estimated range
    901 km
    560 mi
  • Best performance score
    79/100

Specification comparison

Specification comparison
ModelAUDIS6 (C7)Facelift 20144.0 TFSI V8AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
Power
450hp336kW
435hp324kW
Torque
550Nm406lb-ft
600Nm443lb-ft
Curb weight
1,895kg4,178lb
1,995kg4,398lb
Gross weight
2,505kg5,523lb
2,570kg5,666lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
42.6s99% target: 262 km/h / 163 mph
Calculated
44.6s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.4s
4.5s
0-200 km/h
13.0s
Calculated
13.5s
Calculated
0-60 mph
4.2s
Calculated
4.3s
Calculated
Fuel consumption
9.2L/100 km25.6mpg US30.7mpg UK
9.1L/100 km25.8mpg US31.0mpg UK
Fuel consumption city
13.1L/100 km18mpg US21.6mpg UK
12.6L/100 km18.7mpg US22.4mpg UK
Fuel consumption highway
6.9L/100 km34.1mpg US40.9mpg UK
7.1L/100 km33.1mpg US39.8mpg UK
Quarter mile
12.3s
Calculated
12.4s
Calculated
Power-to-weight
237hp/t177kW/t108hp/1000 lb
Calculated
218hp/t163kW/t99hp/1000 lb
Calculated
Torque-to-weight
290Nm/t194lb-ft/ton
Calculated
301Nm/t201lb-ft/ton
Calculated
Estimated range
815km507mi
Calculated
901km560mi
Calculated
Displacement
3,993cc244cu in
3,993cc244cu in
Length
4,931mm194in
5,135mm202in
Width
1,874mm74in
1,949mm77in
Height
1,468mm58in
1,460mm57in
Wheelbase
2,917mm115in
2,992mm118in
Front track
1,615mm64in
1,644mm65in
Rear track
1,607mm63in
1,635mm64in
Trunk volume
530L
490L
Doors
4
4
Seats
5
5
Fuel tank
75L
82L
CO2 emissions
214g/km
213g/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 S6 (C7) Facelift 2014 4.0 TFSI V8AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI V8PowerTorque
  • AUDI S6 (C7) Facelift 2014 4.0 TFSI V8: Power / Torque
  • AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIS6 (C7)Facelift 20144.0 TFSI V85,800-6,400 rpm1,400-5,700 rpm6,650 rpm
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V85,100-6,000 rpm1,500-5,000 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS6 (C7)Facelift 20144.0 TFSI V8AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
4.3 s
0-100 km/h
0-62 mph
4.4 s
4.5 s
0-200 km/h
0-124 mph
13.0 s
13.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.5 s
5.6 s
1/8 mile
201 m
8.2 s
8.2 s
1000 ft
305 m
10.4 s
10.5 s
1/4 mile
402 m
12.3 s
12.4 s
Trap speed
1/4 mile
402 m
194 km/h
121 mph
192 km/h
120 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)Facelift 20144.0 TFSI V8
450 hp
336 kW
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
435 hp
324 kW

AUDI S6 (C7) Facelift 2014 4.0 TFSI V8 has 15 hp more than AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI V8.

The biggest power difference is between AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI V8 and AUDI S6 (C7) Facelift 2014 4.0 TFSI V8: 15 hp (11 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)Facelift 20144.0 TFSI V8
550 Nm
406 lb-ft
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
600 Nm
443 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)Facelift 20144.0 TFSI V8
1,895 kg
4,178 lb
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
1,995 kg
4,398 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)Facelift 20144.0 TFSI V8
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
Unrestricted
265 km/h165 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
AUDIS6 (C7)Facelift 20144.0 TFSI V84.4 s
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V84.5 s

The biggest 0-100 km/h difference is between AUDI S6 (C7) Facelift 2014 4.0 TFSI V8 and AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI V8: 0.1 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)Facelift 20144.0 TFSI V8
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
AUDIS6 (C7)Facelift 20144.0 TFSI V8
237 hp/t
177 kW/t
4.2 kg/hp
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
218 hp/t
163 kW/t
4.6 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)Facelift 20144.0 TFSI V8
815 km
507 mi
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
901 km
560 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS6 (C7)Facelift 20144.0 TFSI V8
450 hp
336 kW
4.4 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
435 hp
324 kW
4.5 s
Unrestricted
265 km/h165 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
AUDIS6 (C7)Facelift 20144.0 TFSI V8
Power
450 hp
336 kW
0-100 km/h4.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,931 mm
194.1 in
Height
1,468 mm
57.8 in
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
Power
435 hp
324 kW
0-100 km/h4.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
490 L
17.3 cu ft
Length
5,135 mm
202.2 in
Height
1,460 mm
57.5 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
AUDIS6 (C7)Facelift 20144.0 TFSI V8
Power
450 hp
336 kW
0-100 km/h4.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
Power
435 hp
324 kW
0-100 km/h4.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI 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
AUDIS6 (C7)Facelift 20144.0 TFSI V8
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
4.4 s
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
4.5 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
AUDIS6 (C7)Facelift 20144.0 TFSI V8
237 hp/t
177 kW/t
4.2 kg/hp
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
218 hp/t
163 kW/t
4.6 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS6 (C7)Facelift 20144.0 TFSI V8AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8
Power
450 hp
336 kW
435 hp
324 kW
Torque
550 Nm
406 lb-ft
600 Nm
443 lb-ft
Acceleration
4.4 s
4.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,895 kg
4,178 lb
1,995 kg
4,398 lb
Fuel consumption
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,931 mm
194.1 in
Height
1,468 mm
57.8 in
Doors/seats
4 doors
5 seats
Trunk
490 L
17.3 cu ft
Length
5,135 mm
202.2 in
Height
1,460 mm
57.5 in
Range score
815 km
507 mi
901 km
560 mi
CO2 score
214 g/km
213 g/km
Trunk score
530 L
18.7 cu ft
490 L
17.3 cu ft
Power-to-weight score
237 hp/t
177 kW/t
4.2 kg/hp
218 hp/t
163 kW/t
4.6 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 S6 (C7) Facelift 2014 4.0 TFSI V8AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI V8
Consumption9.2 L/100 km25.6 mpg US30.7 mpg UK9.1 L/100 km25.8 mpg US31 mpg UK
Cost / 100 km16.10 LC100 km15.92 LC100 km
Cost / 100 mi25.91 LC100 mi25.63 LC100 mi
Annual fuel used1,380 L365 US gal304 UK gal1,365 L361 US gal300 UK gal
Annual fuel cost2,415 LC/year2,389 LC/year

Head-to-head comparisons

AUDI S6 (C7) Facelift 2014 4.0 TFSI V8

  • Has 15 hp more
  • Is 100 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 19 hp/t better power-to-weight
  • Has 40 L more trunk volume

Pros

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

Cons

  • Highest combined fuel consumption
  • Highest CO2 emissions

AUDI A8 (D4/4H) Facelift 2013 4.0 BiTFSI V8

  • Has 50 Nm more
  • Uses 0.1 L/100 km less fuel
  • Has 86 km (53 mi) more estimated range
  • Emits 1 g/km less CO2

Pros

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

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI S6 (C7) 4.0 TFSI V8
AUDI A8 (D4/4H) 4.0 BiTFSI V8
Compare selected cars
2 vehicles selected

Popular comparisons

4.0 TFSI V8
4.0 TFSI V8
VS
AUDIS6 (C7)Facelift 20144.0 TFSI V8vsAUDIS6 (C7)Facelift 20164.0 TFSI V8
4.0 BiTFSI V8
4.0 TFSI V8
VS
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8vsAUDIA8L (D4/4H)Facelift 20134.0 TFSI V8
4.0 TFSI V8
4.0 TFSI V8
VS
AUDIS6 (C7)Facelift 20144.0 TFSI V8vsAUDIS6 (C7)4.0 TFSI V8
4.0 BiTFSI V8
4.0 TFSI V8
VS
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8vsAUDIA8 (D4/4H)4.0 TFSI V8
4.0 TFSI V8
2.9 TFSI V6
VS
AUDIS6 (C7)Facelift 20144.0 TFSI V8vsAUDIS6 (C8)2.9 TFSI V6
4.0 BiTFSI V8
4.0 BiTFSI V8
VS
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8vsAUDIA8L (D4/4H)4.0 BiTFSI V8
4.0 TFSI V8
2.9 TFSI V6
VS
AUDIS6 (C7)Facelift 20144.0 TFSI V8vsAUDIS6 (C8)Facelift 20232.9 TFSI V6
4.0 BiTFSI V8
60 TDI V8
VS
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8vsAUDIA8 (D5)60 TDI V8
4.0 TFSI V8
4.0 TFSI V8
VS
AUDIS6 (C7)Facelift 20144.0 TFSI V8vsAUDIS6 Avant (C7)Facelift 20144.0 TFSI V8
4.0 BiTFSI V8
60 TDI V8
VS
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8vsAUDIA8L (D5)60 TDI V8
4.0 TFSI V8
4.0 TFSI V8
VS
AUDIS6 (C7)Facelift 20144.0 TFSI V8vsAUDIS6 Avant (C7)Facelift 20164.0 TFSI V8
4.0 BiTFSI V8
60 TFSI V8
VS
AUDIA8 (D4/4H)Facelift 20134.0 BiTFSI V8vsAUDIA8L (D5)Facelift 202160 TFSI V8
AUDI S6 (C7) · Facelift 2014 4.0 TFSI V8 vs AUDI A8 (D4/4H) · Facelift 2013 4.0 BiTFSI V8 - car comparison - FastVsFaster