Car comparison

AUDI S4 (B8) 3.0 TFSI V6vsAUDI A8 (D4/4H) 4.2 BiTDI V8

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

New comparison

AUDI S4 (B8)

3.0 TFSI V6

333 hp2995 ccGasolineAWDAutomaticSuperchargedSedan2009-2011
VS

AUDI A8 (D4/4H)

4.2 BiTDI V8

350 hp4134 ccDieselAWDAutomaticTwin-turboSedan2010-2013

Comparison overview

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

Best choices

AUDI A8 (D4/4H) 4.2 BiTDI V8

  • Most powerful
    350 hp
    261 kW
  • Highest torque
    800 Nm
    590 lb-ft
  • Lowest combined fuel consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Lowest city consumption
    9.3 L/100 km
    25.3 mpg US
    30.4 mpg UK
  • Lowest highway consumption
    6.3 L/100 km
    37.3 mpg US
    44.8 mpg UK
  • Lowest CO2 emissions
    195 g/km
  • Best estimated range
    1,216 km
    756 mi
  • Largest trunk
    510 L
  • Best overall score
    75/100
  • Best performance score
    75/100
  • Best economy score
    87/100
  • Best practicality score
    76/100

AUDI S4 (B8) 3.0 TFSI V6

  • Quickest 0-100 km/h
    5.3 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,685 kg
    3,715 lb
  • Best power-to-weight
    198 hp/t
    147 kW/t
    5.1 kg/hp

Specification comparison

Specification comparison
ModelAUDIS4 (B8)3.0 TFSI V6AUDIA8 (D4/4H)4.2 BiTDI V8
Power
333hp248kW
350hp261kW
Torque
440Nm325lb-ft
800Nm590lb-ft
Curb weight
1,685kg3,715lb
1,995kg4,398lb
Gross weight
2,235kg4,927lb
2,660kg5,864lb
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
51.9s99% target: 262 km/h / 163 mph
Calculated
58.0s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.3s
5.5s
0-200 km/h
15.8s
Calculated
17.0s
Calculated
0-60 mph
5.1s
Calculated
5.3s
Calculated
Fuel consumption
9.4L/100 km25mpg US30.1mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Fuel consumption city
13.5L/100 km17.4mpg US20.9mpg UK
9.3L/100 km25.3mpg US30.4mpg UK
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
6.3L/100 km37.3mpg US44.8mpg UK
Quarter mile
13.2s
Calculated
13.5s
Calculated
Power-to-weight
198hp/t147kW/t90hp/1000 lb
Calculated
175hp/t131kW/t80hp/1000 lb
Calculated
Torque-to-weight
261Nm/t175lb-ft/ton
Calculated
401Nm/t268lb-ft/ton
Calculated
Estimated range
681km423mi
Calculated
1,216km756mi
Calculated
Displacement
2,995cc183cu in
4,134cc252cu in
Length
4,717mm186in
5,137mm202in
Width
1,826mm72in
1,949mm77in
Height
1,406mm55in
1,460mm57in
Wheelbase
2,811mm111in
2,992mm118in
Front track
1,552mm61in
1,644mm65in
Rear track
1,539mm61in
1,635mm64in
Ground clearance-
120mm5in
Trunk volume
480L
510L
Max trunk volume
962L
1,142L
Doors
4
4
Seats
5
5
Fuel tank
64L
90L
CO2 emissions
219g/km
195g/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 (B8) 3.0 TFSI V6AUDI A8 (D4/4H) 4.2 BiTDI V8PowerTorque
  • AUDI S4 (B8) 3.0 TFSI V6: Power / Torque
  • AUDI A8 (D4/4H) 4.2 BiTDI V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIS4 (B8)3.0 TFSI V65,500-7,000 rpm2,900-5,300 rpm7,250 rpm
AUDIA8 (D4/4H)4.2 BiTDI V84,000 rpm1,750-2,750 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS4 (B8)3.0 TFSI V6AUDIA8 (D4/4H)4.2 BiTDI V8
Acceleration checkpoints
0-60 mph
0-97 km/h
5.1 s
5.3 s
0-100 km/h
0-62 mph
5.3 s
5.5 s
0-200 km/h
0-124 mph
15.8 s
17.0 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
2.4 s
2.4 s
330 ft
101 m
6.0 s
6.1 s
1/8 mile
201 m
8.8 s
9.0 s
1000 ft
305 m
11.2 s
11.4 s
1/4 mile
402 m
13.2 s
13.5 s
Trap speed
1/4 mile
402 m
183 km/h
114 mph
179 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS4 (B8)3.0 TFSI V6
333 hp
248 kW
AUDIA8 (D4/4H)4.2 BiTDI V8
350 hp
261 kW

AUDI A8 (D4/4H) 4.2 BiTDI V8 has 17 hp more than AUDI S4 (B8) 3.0 TFSI V6.

The biggest power difference is between AUDI S4 (B8) 3.0 TFSI V6 and AUDI A8 (D4/4H) 4.2 BiTDI V8: 17 hp (13 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIS4 (B8)3.0 TFSI V6
440 Nm
325 lb-ft
AUDIA8 (D4/4H)4.2 BiTDI V8
800 Nm
590 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIS4 (B8)3.0 TFSI V6
1,685 kg
3,715 lb
AUDIA8 (D4/4H)4.2 BiTDI 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
AUDIS4 (B8)3.0 TFSI V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA8 (D4/4H)4.2 BiTDI 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
AUDIS4 (B8)3.0 TFSI V65.3 s
AUDIA8 (D4/4H)4.2 BiTDI V85.5 s

Although AUDI A8 (D4/4H) 4.2 BiTDI V8 has more power, AUDI S4 (B8) 3.0 TFSI V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI S4 (B8) 3.0 TFSI V6 and AUDI A8 (D4/4H) 4.2 BiTDI V8: 0.2 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 (B8)3.0 TFSI V6
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
AUDIA8 (D4/4H)4.2 BiTDI V8
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

The biggest fuel consumption difference is between AUDI A8 (D4/4H) 4.2 BiTDI V8 and AUDI S4 (B8) 3.0 TFSI V6: 2.0 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
AUDIS4 (B8)3.0 TFSI V6
198 hp/t
147 kW/t
5.1 kg/hp
AUDIA8 (D4/4H)4.2 BiTDI V8
175 hp/t
131 kW/t
5.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIS4 (B8)3.0 TFSI V6
681 km
423 mi
AUDIA8 (D4/4H)4.2 BiTDI V8
1,216 km
756 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS4 (B8)3.0 TFSI V6
333 hp
248 kW
5.3 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA8 (D4/4H)4.2 BiTDI V8
350 hp
261 kW
5.5 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
AUDIS4 (B8)3.0 TFSI V6
Power
333 hp
248 kW
0-100 km/h5.3 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
4,717 mm
185.7 in
Height
1,406 mm
55.4 in
AUDIA8 (D4/4H)4.2 BiTDI V8
Power
350 hp
261 kW
0-100 km/h5.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
5,137 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
AUDIS4 (B8)3.0 TFSI V6
Power
333 hp
248 kW
0-100 km/h5.3 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
AUDIA8 (D4/4H)4.2 BiTDI V8
Power
350 hp
261 kW
0-100 km/h5.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

AUDI A8 (D4/4H) 4.2 BiTDI 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
AUDIS4 (B8)3.0 TFSI V6
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
5.3 s
AUDIA8 (D4/4H)4.2 BiTDI V8
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
5.5 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
AUDIS4 (B8)3.0 TFSI V6
198 hp/t
147 kW/t
5.1 kg/hp
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
AUDIA8 (D4/4H)4.2 BiTDI V8
175 hp/t
131 kW/t
5.7 kg/hp
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS4 (B8)3.0 TFSI V6AUDIA8 (D4/4H)4.2 BiTDI V8
Power
333 hp
248 kW
350 hp
261 kW
Torque
440 Nm
325 lb-ft
800 Nm
590 lb-ft
Acceleration
5.3 s
5.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,685 kg
3,715 lb
1,995 kg
4,398 lb
Fuel consumption
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,717 mm
185.7 in
Height
1,406 mm
55.4 in
Doors/seats
4 doors
5 seats
Trunk
510 L
18.0 cu ft
Length
5,137 mm
202.2 in
Height
1,460 mm
57.5 in
Range score
681 km
423 mi
1,216 km
756 mi
CO2 score
219 g/km
195 g/km
Trunk score
480 L
17.0 cu ft
510 L
18.0 cu ft
Power-to-weight score
198 hp/t
147 kW/t
5.1 kg/hp
175 hp/t
131 kW/t
5.7 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 (B8) 3.0 TFSI V6AUDI A8 (D4/4H) 4.2 BiTDI V8
Consumption9.4 L/100 km25 mpg US30.1 mpg UK7.4 L/100 km31.8 mpg US38.2 mpg UK
Cost / 100 km16.45 LC100 km12.95 LC100 km
Cost / 100 mi26.47 LC100 mi20.84 LC100 mi
Annual fuel used1,410 L372 US gal310 UK gal1,110 L293 US gal244 UK gal
Annual fuel cost2,468 LC/year1,943 LC/year

Head-to-head comparisons

AUDI S4 (B8) 3.0 TFSI V6

  • Is 310 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 22 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

AUDI A8 (D4/4H) 4.2 BiTDI V8

  • Has 17 hp more
  • Has 360 Nm more
  • Uses 2.0 L/100 km less fuel
  • Has 535 km (333 mi) more estimated range
  • Has 30 L more trunk volume
  • Emits 24 g/km less CO2

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI S4 (B8) 3.0 TFSI V6
AUDI A8 (D4/4H) 4.2 BiTDI V8
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2 vehicles selected

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AUDI S4 (B8) 3.0 TFSI V6 vs AUDI A8 (D4/4H) 4.2 BiTDI V8 - car comparison - FastVsFaster