Car comparison

AUDI S6 (C7) 4.0 TFSI V8vsAUDI S6 (4B/C5) 4.2 V8

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

New comparison

AUDI S6 (C7)

4.0 TFSI V8

420 hp3993 ccGasolineAWDAutomaticTurbochargedSedan2012-2014
VS

AUDI S6 (4B/C5)

4.2 V8

340 hp4172 ccGasolineAWDAutomaticNaturally aspiratedSedan1999-2005

Comparison overview

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

Best choices

AUDI S6 (C7) 4.0 TFSI V8

  • Quickest 0-100 km/h
    4.6 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    420 hp
    313 kW
  • Highest torque
    550 Nm
    406 lb-ft
  • Best power-to-weight
    222 hp/t
    165 kW/t
    4.5 kg/hp
  • Lowest combined fuel consumption
    9.6 L/100 km
    24.5 mpg US
    29.4 mpg UK
  • Lowest city consumption
    13.4 L/100 km
    17.6 mpg US
    21.1 mpg UK
  • Lowest highway consumption
    7.5 L/100 km
    31.4 mpg US
    37.7 mpg UK
  • Lowest CO2 emissions
    225 g/km
  • Best estimated range
    781 km
    485 mi
  • Largest trunk
    530 L
  • Best overall score
    76/100
  • Best performance score
    76/100
  • Best economy score
    81/100
  • Best practicality score
    77/100

Specification comparison

Specification comparison
ModelAUDIS6 (C7)4.0 TFSI V8AUDIS6 (4B/C5)4.2 V8
Power
420hp313kW
340hp254kW
Torque
550Nm406lb-ft
420Nm310lb-ft
Curb weight
1,895kg4,178lb
1,760kg3,880lb
Gross weight
2,505kg5,523lb
2,300kg5,071lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
46.1s99% target: 262 km/h / 163 mph
Calculated
70.2s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.6s
6.7s
0-200 km/h
13.9s
Calculated
21.3s
Calculated
0-60 mph
4.4s
Calculated
6.4s
Calculated
Fuel consumption
9.6L/100 km24.5mpg US29.4mpg UK
14.3L/100 km16.4mpg US19.8mpg UK
Fuel consumption city
13.4L/100 km17.6mpg US21.1mpg UK
21.8L/100 km10.8mpg US13.0mpg UK
Fuel consumption highway
7.5L/100 km31.4mpg US37.7mpg UK
10.1L/100 km23.3mpg US28.0mpg UK
Quarter mile
12.5s
Calculated
14.6s
Calculated
Power-to-weight
222hp/t165kW/t101hp/1000 lb
Calculated
193hp/t144kW/t88hp/1000 lb
Calculated
Torque-to-weight
290Nm/t194lb-ft/ton
Calculated
239Nm/t160lb-ft/ton
Calculated
Estimated range
781km485mi
Calculated
573km356mi
Calculated
Displacement
3,993cc244cu in
4,172cc255cu in
Length
4,931mm194in
4,833mm190in
Width
1,874mm74in
1,850mm73in
Height
1,468mm58in
1,443mm57in
Wheelbase
2,916mm115in
2,759mm109in
Front track
1,615mm64in
1,578mm62in
Rear track
1,606mm63in
1,590mm63in
Trunk volume
530L
434L
Max trunk volume
995L
-
Doors
4
4
Seats
5
5
Fuel tank
75L
82L
CO2 emissions
225g/km
343g/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) 4.0 TFSI V8AUDI S6 (4B/C5) 4.2 V8PowerTorque
  • AUDI S6 (C7) 4.0 TFSI V8: Power / Torque
  • AUDI S6 (4B/C5) 4.2 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIS6 (C7)4.0 TFSI V85,500-6,400 rpm1,400-5,200 rpm6,650 rpm
AUDIS6 (4B/C5)4.2 V87,000 rpm3,400 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS6 (C7)4.0 TFSI V8AUDIS6 (4B/C5)4.2 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
6.4 s
0-100 km/h
0-62 mph
4.6 s
6.7 s
0-200 km/h
0-124 mph
13.9 s
21.3 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.6 s
330 ft
101 m
5.6 s
6.6 s
1/8 mile
201 m
8.3 s
9.8 s
1000 ft
305 m
10.6 s
12.4 s
1/4 mile
402 m
12.5 s
14.6 s
Trap speed
1/4 mile
402 m
191 km/h
119 mph
167 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)4.0 TFSI V8
420 hp
313 kW
AUDIS6 (4B/C5)4.2 V8
340 hp
254 kW

AUDI S6 (C7) 4.0 TFSI V8 has 80 hp more than AUDI S6 (4B/C5) 4.2 V8.

The biggest power difference is between AUDI S6 (4B/C5) 4.2 V8 and AUDI S6 (C7) 4.0 TFSI V8: 80 hp (60 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)4.0 TFSI V8
550 Nm
406 lb-ft
AUDIS6 (4B/C5)4.2 V8
420 Nm
310 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)4.0 TFSI V8
1,895 kg
4,178 lb
AUDIS6 (4B/C5)4.2 V8
1,760 kg
3,880 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)4.0 TFSI V8
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIS6 (4B/C5)4.2 V8
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
AUDIS6 (C7)4.0 TFSI V84.6 s
AUDIS6 (4B/C5)4.2 V86.7 s

The biggest 0-100 km/h difference is between AUDI S6 (C7) 4.0 TFSI V8 and AUDI S6 (4B/C5) 4.2 V8: 2.1 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)4.0 TFSI V8
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
AUDIS6 (4B/C5)4.2 V8
14.3 L/100 km
16.4 mpg US
19.8 mpg UK

The biggest fuel consumption difference is between AUDI S6 (C7) 4.0 TFSI V8 and AUDI S6 (4B/C5) 4.2 V8: 4.7 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
AUDIS6 (C7)4.0 TFSI V8
222 hp/t
165 kW/t
4.5 kg/hp
AUDIS6 (4B/C5)4.2 V8
193 hp/t
144 kW/t
5.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIS6 (C7)4.0 TFSI V8
781 km
485 mi
AUDIS6 (4B/C5)4.2 V8
573 km
356 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS6 (C7)4.0 TFSI V8
420 hp
313 kW
4.6 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIS6 (4B/C5)4.2 V8
340 hp
254 kW
6.7 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
AUDIS6 (C7)4.0 TFSI V8
Power
420 hp
313 kW
0-100 km/h4.6 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
AUDIS6 (4B/C5)4.2 V8
Power
340 hp
254 kW
0-100 km/h6.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
434 L
15.3 cu ft
Length
4,833 mm
190.3 in
Height
1,443 mm
56.8 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
AUDIS6 (C7)4.0 TFSI V8
Power
420 hp
313 kW
0-100 km/h4.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
AUDIS6 (4B/C5)4.2 V8
Power
340 hp
254 kW
0-100 km/h6.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
14.3 L/100 km
16.4 mpg US
19.8 mpg UK

AUDI S6 (C7) 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
AUDIS6 (C7)4.0 TFSI V8
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
4.6 s
AUDIS6 (4B/C5)4.2 V8
14.3 L/100 km
16.4 mpg US
19.8 mpg UK
6.7 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)4.0 TFSI V8
222 hp/t
165 kW/t
4.5 kg/hp
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
AUDIS6 (4B/C5)4.2 V8
193 hp/t
144 kW/t
5.2 kg/hp
14.3 L/100 km
16.4 mpg US
19.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS6 (C7)4.0 TFSI V8AUDIS6 (4B/C5)4.2 V8
Power
420 hp
313 kW
340 hp
254 kW
Torque
550 Nm
406 lb-ft
420 Nm
310 lb-ft
Acceleration
4.6 s
6.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,895 kg
4,178 lb
1,760 kg
3,880 lb
Fuel consumption
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
14.3 L/100 km
16.4 mpg US
19.8 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
434 L
15.3 cu ft
Length
4,833 mm
190.3 in
Height
1,443 mm
56.8 in
Range score
781 km
485 mi
573 km
356 mi
CO2 score
225 g/km
343 g/km
Trunk score
530 L
18.7 cu ft
434 L
15.3 cu ft
Power-to-weight score
222 hp/t
165 kW/t
4.5 kg/hp
193 hp/t
144 kW/t
5.2 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) 4.0 TFSI V8AUDI S6 (4B/C5) 4.2 V8
Consumption9.6 L/100 km24.5 mpg US29.4 mpg UK14.3 L/100 km16.4 mpg US19.8 mpg UK
Cost / 100 km16.80 LC100 km25.03 LC100 km
Cost / 100 mi27.04 LC100 mi40.27 LC100 mi
Annual fuel used1,440 L380 US gal317 UK gal2,145 L567 US gal472 UK gal
Annual fuel cost2,520 LC/year3,754 LC/year

Head-to-head comparisons

AUDI S6 (C7) 4.0 TFSI V8

  • Has 80 hp more
  • Has 130 Nm more
  • Is 2.1 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Uses 4.7 L/100 km less fuel
  • Has 28 hp/t better power-to-weight
  • Has 208 km (129 mi) more estimated range
  • Has 96 L more trunk volume
  • Emits 118 g/km less CO2

Pros

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

Cons

  • Heaviest

AUDI S6 (4B/C5) 4.2 V8

  • Is 135 kg lighter

Pros

  • Lightest

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed
  • Smallest trunk
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI S6 (C7) 4.0 TFSI V8
AUDI S6 (4B/C5) 4.2 V8
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2 vehicles selected

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