Car comparison

AUDI A8 (D5) 55 TFSI V6vsAUDI A8 (D4/4H) 4.2 FSI V8

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

New comparison

AUDI A8 (D5)

55 TFSI V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedSedan2017-2019
VS

AUDI A8 (D4/4H)

4.2 FSI V8

372 hp4163 ccGasolineAWDAutomaticNaturally aspiratedSedan2010-2012

Comparison overview

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

Best choices

AUDI A8 (D5) 55 TFSI V6

  • Quickest 0-100 km/h
    5.6 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    7.8 L/100 km
    30.2 mpg US
    36.2 mpg UK
  • Lowest city consumption
    10.3 L/100 km
    22.8 mpg US
    27.4 mpg UK
  • Lowest highway consumption
    6.4 L/100 km
    36.8 mpg US
    44.1 mpg UK
  • Lowest CO2 emissions
    178 g/km
  • Best economy score
    86/100
  • Best practicality score
    76/100

AUDI A8 (D4/4H) 4.2 FSI V8

  • Most powerful
    372 hp
    277 kW
  • Lightest
    1,835 kg
    4,045 lb
  • Best power-to-weight
    203 hp/t
    151 kW/t
    4.9 kg/hp
  • Best estimated range
    947 km
    589 mi
  • Largest trunk
    510 L
  • Best overall score
    72/100
  • Best performance score
    70/100

Specification comparison

Specification comparison
ModelAUDIA8 (D5)55 TFSI V6AUDIA8 (D4/4H)4.2 FSI V8
Power
340hp254kW
372hp277kW
Torque
500Nm369lb-ft
445Nm328lb-ft
Curb weight
1,920kg4,233lb
1,835kg4,045lb
Gross weight
2,680kg5,908lb
2,525kg5,567lb
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
58.7s99% target: 262 km/h / 163 mph
Calculated
56.4s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.6s
5.7s
0-200 km/h
17.2s
Calculated
17.1s
Calculated
0-60 mph
5.4s
Calculated
5.5s
Calculated
Fuel consumption
7.8L/100 km30.2mpg US36.2mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Fuel consumption city
10.3L/100 km22.8mpg US27.4mpg UK
13.3L/100 km17.7mpg US21.2mpg UK
Fuel consumption highway
6.4L/100 km36.8mpg US44.1mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile
13.6s
Calculated
13.6s
Calculated
Power-to-weight
177hp/t132kW/t80hp/1000 lb
Calculated
203hp/t151kW/t92hp/1000 lb
Calculated
Torque-to-weight
260Nm/t174lb-ft/ton
Calculated
243Nm/t162lb-ft/ton
Calculated
Estimated range
923km574mi
Calculated
947km589mi
Calculated
Displacement
2,995cc183cu in
4,163cc254cu in
Length
5,172mm204in
5,137mm202in
Width
1,945mm77in
1,949mm77in
Height
1,473mm58in
1,460mm57in
Wheelbase
2,998mm118in
2,992mm118in
Front track
1,644mm65in
1,644mm65in
Rear track
1,633mm64in
1,635mm64in
Trunk volume
505L
510L
Max trunk volume-
906L
Doors
4
4
Seats
5
5
Fuel tank
72L
90L
CO2 emissions
178g/km
219g/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 A8 (D5) 55 TFSI V6AUDI A8 (D4/4H) 4.2 FSI V8PowerTorque
  • AUDI A8 (D5) 55 TFSI V6: Power / Torque
  • AUDI A8 (D4/4H) 4.2 FSI V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA8 (D5)55 TFSI V65,000-6,400 rpm1,370-4,500 rpm6,650 rpm
AUDIA8 (D4/4H)4.2 FSI V86,800 rpm3,500 rpm7,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIA8 (D5)55 TFSI V6AUDIA8 (D4/4H)4.2 FSI V8
Acceleration checkpoints
0-60 mph
0-97 km/h
5.4 s
5.5 s
0-100 km/h
0-62 mph
5.6 s
5.7 s
0-200 km/h
0-124 mph
17.2 s
17.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.5 s
2.5 s
330 ft
101 m
6.1 s
6.2 s
1/8 mile
201 m
9.0 s
9.1 s
1000 ft
305 m
11.5 s
11.6 s
1/4 mile
402 m
13.6 s
13.6 s
Trap speed
1/4 mile
402 m
178 km/h
111 mph
179 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA8 (D5)55 TFSI V6
340 hp
254 kW
AUDIA8 (D4/4H)4.2 FSI V8
372 hp
277 kW

AUDI A8 (D4/4H) 4.2 FSI V8 has 32 hp more than AUDI A8 (D5) 55 TFSI V6.

The biggest power difference is between AUDI A8 (D5) 55 TFSI V6 and AUDI A8 (D4/4H) 4.2 FSI V8: 32 hp (24 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA8 (D5)55 TFSI V6
500 Nm
369 lb-ft
AUDIA8 (D4/4H)4.2 FSI V8
445 Nm
328 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIA8 (D5)55 TFSI V6
1,920 kg
4,233 lb
AUDIA8 (D4/4H)4.2 FSI V8
1,835 kg
4,045 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIA8 (D5)55 TFSI V6
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA8 (D4/4H)4.2 FSI 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
AUDIA8 (D5)55 TFSI V65.6 s
AUDIA8 (D4/4H)4.2 FSI V85.7 s

Although AUDI A8 (D4/4H) 4.2 FSI V8 has more power, AUDI A8 (D5) 55 TFSI V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A8 (D5) 55 TFSI V6 and AUDI A8 (D4/4H) 4.2 FSI 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
AUDIA8 (D5)55 TFSI V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
AUDIA8 (D4/4H)4.2 FSI V8
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

The biggest fuel consumption difference is between AUDI A8 (D5) 55 TFSI V6 and AUDI A8 (D4/4H) 4.2 FSI V8: 1.7 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
AUDIA8 (D5)55 TFSI V6
177 hp/t
132 kW/t
5.6 kg/hp
AUDIA8 (D4/4H)4.2 FSI V8
203 hp/t
151 kW/t
4.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIA8 (D5)55 TFSI V6
923 km
574 mi
AUDIA8 (D4/4H)4.2 FSI V8
947 km
589 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA8 (D5)55 TFSI V6
340 hp
254 kW
5.6 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIA8 (D4/4H)4.2 FSI V8
372 hp
277 kW
5.7 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
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
AUDIA8 (D4/4H)4.2 FSI V8
Power
372 hp
277 kW
0-100 km/h5.7 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
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
AUDIA8 (D4/4H)4.2 FSI V8
Power
372 hp
277 kW
0-100 km/h5.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

AUDI A8 (D5) 55 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
AUDIA8 (D5)55 TFSI V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
5.6 s
AUDIA8 (D4/4H)4.2 FSI V8
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
5.7 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
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
AUDIA8 (D4/4H)4.2 FSI V8
203 hp/t
151 kW/t
4.9 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA8 (D5)55 TFSI V6AUDIA8 (D4/4H)4.2 FSI V8
Power
340 hp
254 kW
372 hp
277 kW
Torque
500 Nm
369 lb-ft
445 Nm
328 lb-ft
Acceleration
5.6 s
5.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,920 kg
4,233 lb
1,835 kg
4,045 lb
Fuel consumption
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Practicality
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
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
923 km
574 mi
947 km
589 mi
CO2 score
178 g/km
219 g/km
Trunk score
505 L
17.8 cu ft
510 L
18.0 cu ft
Power-to-weight score
177 hp/t
132 kW/t
5.6 kg/hp
203 hp/t
151 kW/t
4.9 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 A8 (D5) 55 TFSI V6AUDI A8 (D4/4H) 4.2 FSI V8
Consumption7.8 L/100 km30.2 mpg US36.2 mpg UK9.5 L/100 km24.8 mpg US29.7 mpg UK
Cost / 100 km13.65 LC100 km16.63 LC100 km
Cost / 100 mi21.97 LC100 mi26.76 LC100 mi
Annual fuel used1,170 L309 US gal257 UK gal1,425 L376 US gal313 UK gal
Annual fuel cost2,048 LC/year2,494 LC/year

Head-to-head comparisons

AUDI A8 (D5) 55 TFSI V6

  • Has 55 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 1.7 L/100 km less fuel
  • Emits 41 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Highest torque
  • Lowest combined fuel consumption

Cons

  • Lowest power
  • Heaviest
  • Smallest trunk

AUDI A8 (D4/4H) 4.2 FSI V8

  • Has 32 hp more
  • Is 85 kg lighter
  • Has 26 hp/t better power-to-weight
  • Has 24 km (15 mi) more estimated range
  • Has 5 L more trunk volume

Pros

  • Most powerful
  • Lightest
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI A8 (D5) 55 TFSI V6
AUDI A8 (D4/4H) 4.2 FSI V8
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2 vehicles selected

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AUDI A8 (D5) 55 TFSI V6 vs AUDI A8 (D4/4H) 4.2 FSI V8 - car comparison - FastVsFaster