Car comparison

AUDI A8 (D4/4H) 4.2 BiTDI V8vsAUDI A8 (D5) 55 TFSI V6

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

New comparison

AUDI A8 (D4/4H)

4.2 BiTDI V8

350 hp4134 ccDieselAWDAutomaticTwin-turboSedan2010-2013
VS

AUDI A8 (D5)

55 TFSI V6

340 hp2995 ccGasolineAWDAutomaticTurbochargedSedan2019-2021

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

  • Quickest 0-100 km/h
    5.5 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • 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
  • 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

Specification comparison

Specification comparison
ModelAUDIA8 (D4/4H)4.2 BiTDI V8AUDIA8 (D5)55 TFSI V6
Power
350hp261kW
340hp254kW
Torque
800Nm590lb-ft
500Nm369lb-ft
Curb weight
1,995kg4,398lb
1,920kg4,233lb
Gross weight
2,660kg5,864lb
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
58.0s99% target: 262 km/h / 163 mph
Calculated
58.7s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.5s
5.6s
0-200 km/h
17.0s
Calculated
17.2s
Calculated
0-60 mph
5.3s
Calculated
5.4s
Calculated
Fuel consumption
7.4L/100 km31.8mpg US38.2mpg UK
8.3L/100 km28.3mpg US34.0mpg UK
Fuel consumption city
9.3L/100 km25.3mpg US30.4mpg UK
11.3L/100 km20.8mpg US25.0mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
6.5L/100 km36.2mpg US43.5mpg UK
Quarter mile
13.5s
Calculated
13.6s
Calculated
Power-to-weight
175hp/t131kW/t80hp/1000 lb
Calculated
177hp/t132kW/t80hp/1000 lb
Calculated
Torque-to-weight
401Nm/t268lb-ft/ton
Calculated
260Nm/t174lb-ft/ton
Calculated
Estimated range
1,216km756mi
Calculated
867km539mi
Calculated
Displacement
4,134cc252cu in
2,995cc183cu in
Length
5,137mm202in
5,172mm204in
Width
1,949mm77in
1,945mm77in
Height
1,460mm57in
1,473mm58in
Wheelbase
2,992mm118in
2,998mm118in
Front track
1,644mm65in
1,644mm65in
Rear track
1,635mm64in
1,633mm64in
Ground clearance
120mm5in
-
Trunk volume
510L
505L
Max trunk volume
1,142L
-
Doors
4
4
Seats
5
5
Fuel tank
90L
72L
CO2 emissions
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 A8 (D4/4H) 4.2 BiTDI V8AUDI A8 (D5) 55 TFSI V6PowerTorque
  • AUDI A8 (D4/4H) 4.2 BiTDI V8: Power / Torque
  • AUDI A8 (D5) 55 TFSI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIA8 (D4/4H)4.2 BiTDI V84,000 rpm1,750-2,750 rpm4,250 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
MetricAUDIA8 (D4/4H)4.2 BiTDI V8AUDIA8 (D5)55 TFSI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
5.4 s
0-100 km/h
0-62 mph
5.5 s
5.6 s
0-200 km/h
0-124 mph
17.0 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
2.4 s
2.5 s
330 ft
101 m
6.1 s
6.1 s
1/8 mile
201 m
9.0 s
9.0 s
1000 ft
305 m
11.4 s
11.5 s
1/4 mile
402 m
13.5 s
13.6 s
Trap speed
1/4 mile
402 m
179 km/h
111 mph
178 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
AUDIA8 (D4/4H)4.2 BiTDI V8
350 hp
261 kW
AUDIA8 (D5)55 TFSI V6
340 hp
254 kW

AUDI A8 (D4/4H) 4.2 BiTDI V8 has 10 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 BiTDI V8: 10 hp (7 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIA8 (D4/4H)4.2 BiTDI V8
800 Nm
590 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
AUDIA8 (D4/4H)4.2 BiTDI V8
1,995 kg
4,398 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
AUDIA8 (D4/4H)4.2 BiTDI V8
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
AUDIA8 (D4/4H)4.2 BiTDI V85.5 s
AUDIA8 (D5)55 TFSI V65.6 s

The biggest 0-100 km/h difference is between AUDI A8 (D4/4H) 4.2 BiTDI V8 and AUDI A8 (D5) 55 TFSI V6: 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 (D4/4H)4.2 BiTDI V8
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
AUDIA8 (D5)55 TFSI V6
8.3 L/100 km
28.3 mpg US
34.0 mpg UK

The biggest fuel consumption difference is between AUDI A8 (D4/4H) 4.2 BiTDI V8 and AUDI A8 (D5) 55 TFSI V6: 0.9 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 (D4/4H)4.2 BiTDI V8
175 hp/t
131 kW/t
5.7 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
AUDIA8 (D4/4H)4.2 BiTDI V8
1,216 km
756 mi
AUDIA8 (D5)55 TFSI V6
867 km
539 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIA8 (D4/4H)4.2 BiTDI V8
350 hp
261 kW
5.5 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
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
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
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
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
8.3 L/100 km
28.3 mpg US
34.0 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
AUDIA8 (D4/4H)4.2 BiTDI V8
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
5.5 s
AUDIA8 (D5)55 TFSI V6
8.3 L/100 km
28.3 mpg US
34.0 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
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
AUDIA8 (D5)55 TFSI V6
177 hp/t
132 kW/t
5.6 kg/hp
8.3 L/100 km
28.3 mpg US
34.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIA8 (D4/4H)4.2 BiTDI V8AUDIA8 (D5)55 TFSI V6
Power
350 hp
261 kW
340 hp
254 kW
Torque
800 Nm
590 lb-ft
500 Nm
369 lb-ft
Acceleration
5.5 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
1,995 kg
4,398 lb
1,920 kg
4,233 lb
Fuel consumption
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
Practicality
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
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
1,216 km
756 mi
867 km
539 mi
CO2 score
195 g/km
-
Trunk score
510 L
18.0 cu ft
505 L
17.8 cu ft
Power-to-weight score
175 hp/t
131 kW/t
5.7 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 A8 (D4/4H) 4.2 BiTDI V8AUDI A8 (D5) 55 TFSI V6
Consumption7.4 L/100 km31.8 mpg US38.2 mpg UK8.3 L/100 km28.3 mpg US34 mpg UK
Cost / 100 km12.95 LC100 km14.53 LC100 km
Cost / 100 mi20.84 LC100 mi23.38 LC100 mi
Annual fuel used1,110 L293 US gal244 UK gal1,245 L329 US gal274 UK gal
Annual fuel cost1,943 LC/year2,179 LC/year

Head-to-head comparisons

AUDI A8 (D4/4H) 4.2 BiTDI V8

  • Has 10 hp more
  • Has 300 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 0.9 L/100 km less fuel
  • Has 349 km (217 mi) more estimated range
  • Has 5 L more trunk volume

Pros

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

Cons

  • Heaviest

AUDI A8 (D5) 55 TFSI V6

  • Is 75 kg lighter
  • Has 2 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

Cons

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

Choose cars to compare

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

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