Car comparison

AUDI S4 (B9) 3.0 TFSI V6vsAUDI A8 (D5) 55 TFSI V6

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

New comparison

AUDI S4 (B9)

3.0 TFSI V6

354 hp2995 ccGasolineAWDAutomaticTurbochargedSedan2016-2019
VS

AUDI A8 (D5)

55 TFSI V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedSedan2017-2019

Comparison overview

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

Best choices

AUDI S4 (B9) 3.0 TFSI V6

  • Quickest 0-100 km/h
    4.7 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    354 hp
    264 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lightest
    1,630 kg
    3,594 lb
  • Best power-to-weight
    217 hp/t
    162 kW/t
    4.6 kg/hp
  • Lowest combined fuel consumption
    7.5 L/100 km
    31.4 mpg US
    37.7 mpg UK
  • Lowest city consumption
    9.9 L/100 km
    23.8 mpg US
    28.5 mpg UK
  • Lowest highway consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest CO2 emissions
    170 g/km
  • Best overall score
    73/100
  • Best performance score
    73/100
  • Best economy score
    87/100

Specification comparison

Specification comparison
ModelAUDIS4 (B9)3.0 TFSI V6AUDIA8 (D5)55 TFSI V6
Power
354hp264kW
340hp254kW
Torque
500Nm369lb-ft
500Nm369lb-ft
Curb weight
1,630kg3,594lb
1,920kg4,233lb
Gross weight
2,200kg4,850lb
2,680kg5,908lb
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
45.1s99% target: 262 km/h / 163 mph
Calculated
58.7s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.7s
5.6s
0-200 km/h
13.9s
Calculated
17.2s
Calculated
0-60 mph
4.5s
Calculated
5.4s
Calculated
Fuel consumption
7.5L/100 km31.4mpg US37.7mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Fuel consumption city
9.9L/100 km23.8mpg US28.5mpg UK
10.3L/100 km22.8mpg US27.4mpg UK
Fuel consumption highway
6.1L/100 km38.6mpg US46.3mpg UK
6.4L/100 km36.8mpg US44.1mpg UK
Quarter mile
12.6s
Calculated
13.6s
Calculated
Power-to-weight
217hp/t162kW/t99hp/1000 lb
Calculated
177hp/t132kW/t80hp/1000 lb
Calculated
Torque-to-weight
307Nm/t205lb-ft/ton
Calculated
260Nm/t174lb-ft/ton
Calculated
Estimated range
773km481mi
Calculated
923km574mi
Calculated
Displacement
2,995cc183cu in
2,995cc183cu in
Length
4,745mm187in
5,172mm204in
Width
1,842mm73in
1,945mm77in
Height
1,407mm55in
1,473mm58in
Wheelbase
2,825mm111in
2,998mm118in
Front track
1,565mm62in
1,644mm65in
Rear track
1,546mm61in
1,633mm64in
Trunk volume
480L
505L
Max trunk volume
965L
-
Doors
4
4
Seats
5
5
Fuel tank
58L
72L
CO2 emissions
170g/km
178g/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 (B9) 3.0 TFSI V6AUDI A8 (D5) 55 TFSI V6PowerTorque
  • AUDI S4 (B9) 3.0 TFSI V6: Power / Torque
  • AUDI A8 (D5) 55 TFSI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIS4 (B9)3.0 TFSI V65,400-6,400 rpm1,370-4,500 rpm6,650 rpm
AUDIA8 (D5)55 TFSI V65,000-6,400 rpm1,370-4,500 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS4 (B9)3.0 TFSI V6AUDIA8 (D5)55 TFSI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
4.5 s
5.4 s
0-100 km/h
0-62 mph
4.7 s
5.6 s
0-200 km/h
0-124 mph
13.9 s
17.2 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
Limited
Drag race simulation
60 ft
18 m
2.3 s
2.5 s
330 ft
101 m
5.7 s
6.1 s
1/8 mile
201 m
8.4 s
9.0 s
1000 ft
305 m
10.7 s
11.5 s
1/4 mile
402 m
12.6 s
13.6 s
Trap speed
1/4 mile
402 m
191 km/h
119 mph
178 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS4 (B9)3.0 TFSI V6
354 hp
264 kW
AUDIA8 (D5)55 TFSI V6
340 hp
254 kW

AUDI S4 (B9) 3.0 TFSI V6 has 14 hp more than AUDI A8 (D5) 55 TFSI V6.

The biggest power difference is between AUDI A8 (D5) 55 TFSI V6 and AUDI S4 (B9) 3.0 TFSI V6: 14 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIS4 (B9)3.0 TFSI V6
500 Nm
369 lb-ft
AUDIA8 (D5)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
AUDIS4 (B9)3.0 TFSI V6
1,630 kg
3,594 lb
AUDIA8 (D5)55 TFSI V6
1,920 kg
4,233 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 (B9)3.0 TFSI V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA8 (D5)55 TFSI V6
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
AUDIS4 (B9)3.0 TFSI V64.7 s
AUDIA8 (D5)55 TFSI V65.6 s

The biggest 0-100 km/h difference is between AUDI S4 (B9) 3.0 TFSI V6 and AUDI A8 (D5) 55 TFSI V6: 0.9 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 (B9)3.0 TFSI V6
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
AUDIA8 (D5)55 TFSI V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
AUDIS4 (B9)3.0 TFSI V6
217 hp/t
162 kW/t
4.6 kg/hp
AUDIA8 (D5)55 TFSI V6
177 hp/t
132 kW/t
5.6 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIS4 (B9)3.0 TFSI V6
773 km
481 mi
AUDIA8 (D5)55 TFSI V6
923 km
574 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS4 (B9)3.0 TFSI V6
354 hp
264 kW
4.7 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA8 (D5)55 TFSI V6
340 hp
254 kW
5.6 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
AUDIS4 (B9)3.0 TFSI V6
Power
354 hp
264 kW
0-100 km/h4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,745 mm
186.8 in
Height
1,407 mm
55.4 in
AUDIA8 (D5)55 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
505 L
17.8 cu ft
Length
5,172 mm
203.6 in
Height
1,473 mm
58.0 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
AUDIS4 (B9)3.0 TFSI V6
Power
354 hp
264 kW
0-100 km/h4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
AUDIA8 (D5)55 TFSI V6
Power
340 hp
254 kW
0-100 km/h5.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

AUDI S4 (B9) 3.0 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
AUDIS4 (B9)3.0 TFSI V6
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
4.7 s
AUDIA8 (D5)55 TFSI V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
5.6 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 (B9)3.0 TFSI V6
217 hp/t
162 kW/t
4.6 kg/hp
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
AUDIA8 (D5)55 TFSI V6
177 hp/t
132 kW/t
5.6 kg/hp
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS4 (B9)3.0 TFSI V6AUDIA8 (D5)55 TFSI V6
Power
354 hp
264 kW
340 hp
254 kW
Torque
500 Nm
369 lb-ft
500 Nm
369 lb-ft
Acceleration
4.7 s
5.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,630 kg
3,594 lb
1,920 kg
4,233 lb
Fuel consumption
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,745 mm
186.8 in
Height
1,407 mm
55.4 in
Doors/seats
4 doors
5 seats
Trunk
505 L
17.8 cu ft
Length
5,172 mm
203.6 in
Height
1,473 mm
58.0 in
Range score
773 km
481 mi
923 km
574 mi
CO2 score
170 g/km
178 g/km
Trunk score
480 L
17.0 cu ft
505 L
17.8 cu ft
Power-to-weight score
217 hp/t
162 kW/t
4.6 kg/hp
177 hp/t
132 kW/t
5.6 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 S4 (B9) 3.0 TFSI V6AUDI A8 (D5) 55 TFSI V6
Consumption7.5 L/100 km31.4 mpg US37.7 mpg UK7.8 L/100 km30.2 mpg US36.2 mpg UK
Cost / 100 km13.13 LC100 km13.65 LC100 km
Cost / 100 mi21.12 LC100 mi21.97 LC100 mi
Annual fuel used1,125 L297 US gal247 UK gal1,170 L309 US gal257 UK gal
Annual fuel cost1,969 LC/year2,048 LC/year

Head-to-head comparisons

AUDI S4 (B9) 3.0 TFSI V6

  • Has 14 hp more
  • Is 290 kg lighter
  • Is 0.9 s quicker from 0-100 km/h
  • Uses 0.3 L/100 km less fuel
  • Has 40 hp/t better power-to-weight
  • Emits 8 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

Cons

  • Smallest trunk

AUDI A8 (D5) 55 TFSI V6

  • Has 150 km (93 mi) more estimated range
  • Has 25 L more trunk volume

Pros

  • Best estimated range
  • 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 (B9) 3.0 TFSI V6
AUDI A8 (D5) 55 TFSI V6
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