Car comparison

AUDI S8 (D5) · Facelift 2021 4.0 TFSI V8vsAUDI S8 (D4) 4.0 TFSI V8

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

New comparison

AUDI S8 (D5) · Facelift 2021

4.0 TFSI V8

571 hp3996 ccGasolineAWDAutomaticTwin-turboSedan2021-present
VS

AUDI S8 (D4)

4.0 TFSI V8

520 hp3993 ccGasolineAWDAutomaticTwin-turboSedan2012-2013

Comparison overview

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

Best choices

AUDI S8 (D4) 4.0 TFSI V8

  • Lightest
    1,975 kg
    4,354 lb
  • Best power-to-weight
    263 hp/t
    196 kW/t
    3.8 kg/hp
  • Lowest combined fuel consumption
    10.1 L/100 km
    23.3 mpg US
    28.0 mpg UK
  • Lowest city consumption
    14.4 L/100 km
    16.3 mpg US
    19.6 mpg UK
  • Lowest highway consumption
    7.6 L/100 km
    30.9 mpg US
    37.2 mpg UK
  • Best estimated range
    891 km
    554 mi
  • Largest trunk
    520 L
  • Best economy score
    80/100
  • Best practicality score
    77/100

AUDI S8 (D5) Facelift 2021 4.0 TFSI V8

  • Quickest 0-100 km/h
    3.8 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    571 hp
    426 kW
  • Highest torque
    800 Nm
    590 lb-ft
  • Best overall score
    82/100
  • Best performance score
    85/100

Specification comparison

Specification comparison
ModelAUDIS8 (D5)Facelift 20214.0 TFSI V8AUDIS8 (D4)4.0 TFSI V8
Power
571hp426kW
520hp388kW
Torque
800Nm590lb-ft
650Nm479lb-ft
Curb weight
2,220kg4,894lb
1,975kg4,354lb
Gross weight
2,835kg6,250lb
2,575kg5,677lb
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
36.7s99% target: 262 km/h / 163 mph
Calculated
39.4s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
3.8s
4.2s
0-200 km/h
11.2s
Calculated
12.3s
Calculated
0-60 mph
3.6s
Calculated
4.0s
Calculated
Fuel consumption
10.8L/100 km21.8mpg US26.2mpg UK
10.1L/100 km23.3mpg US28.0mpg UK
Fuel consumption city
15.1L/100 km15.6mpg US18.7mpg UK
14.4L/100 km16.3mpg US19.6mpg UK
Fuel consumption highway
8.2L/100 km28.7mpg US34.4mpg UK
7.6L/100 km30.9mpg US37.2mpg UK
Quarter mile
11.6s
Calculated
12.0s
Calculated
Power-to-weight
257hp/t192kW/t117hp/1000 lb
Calculated
263hp/t196kW/t119hp/1000 lb
Calculated
Torque-to-weight
360Nm/t241lb-ft/ton
Calculated
329Nm/t220lb-ft/ton
Calculated
Estimated range
759km472mi
Calculated
891km554mi
Calculated
Displacement
3,996cc244cu in
3,993cc244cu in
Length
5,190mm204in
5,146mm203in
Width
1,945mm77in
1,949mm77in
Height
1,475mm58in
1,458mm57in
Wheelbase
2,998mm118in
2,994mm118in
Front track
1,629mm64in
1,632mm64in
Rear track
1,614mm64in
1,623mm64in
Trunk volume
505L
520L
Doors
4
4
Seats
5
5
Fuel tank
82L
90L
CO2 emissions-
235g/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 S8 (D5) Facelift 2021 4.0 TFSI V8AUDI S8 (D4) 4.0 TFSI V8PowerTorque
  • AUDI S8 (D5) Facelift 2021 4.0 TFSI V8: Power / Torque
  • AUDI S8 (D4) 4.0 TFSI V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIS8 (D5)Facelift 20214.0 TFSI V86,000 rpm2,050-4,500 rpm6,250 rpm
AUDIS8 (D4)4.0 TFSI V86,000 rpm1,700-5,500 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIS8 (D5)Facelift 20214.0 TFSI V8AUDIS8 (D4)4.0 TFSI V8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.6 s
4.0 s
0-100 km/h
0-62 mph
3.8 s
4.2 s
0-200 km/h
0-124 mph
11.2 s
12.3 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
2.1 s
2.2 s
330 ft
101 m
5.2 s
5.4 s
1/8 mile
201 m
7.7 s
8.0 s
1000 ft
305 m
9.8 s
10.2 s
1/4 mile
402 m
11.6 s
12.0 s
Trap speed
1/4 mile
402 m
203 km/h
126 mph
198 km/h
123 mph

Power comparison

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

Chart data table
VehicleValue
AUDIS8 (D5)Facelift 20214.0 TFSI V8
571 hp
426 kW
AUDIS8 (D4)4.0 TFSI V8
520 hp
388 kW

AUDI S8 (D5) Facelift 2021 4.0 TFSI V8 has 51 hp more than AUDI S8 (D4) 4.0 TFSI V8.

The biggest power difference is between AUDI S8 (D4) 4.0 TFSI V8 and AUDI S8 (D5) Facelift 2021 4.0 TFSI V8: 51 hp (38 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIS8 (D5)Facelift 20214.0 TFSI V8
800 Nm
590 lb-ft
AUDIS8 (D4)4.0 TFSI V8
650 Nm
479 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIS8 (D5)Facelift 20214.0 TFSI V8
2,220 kg
4,894 lb
AUDIS8 (D4)4.0 TFSI V8
1,975 kg
4,354 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIS8 (D5)Facelift 20214.0 TFSI V8
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIS8 (D4)4.0 TFSI 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
AUDIS8 (D5)Facelift 20214.0 TFSI V83.8 s
AUDIS8 (D4)4.0 TFSI V84.2 s

The biggest 0-100 km/h difference is between AUDI S8 (D5) Facelift 2021 4.0 TFSI V8 and AUDI S8 (D4) 4.0 TFSI V8: 0.4 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
AUDIS8 (D5)Facelift 20214.0 TFSI V8
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
AUDIS8 (D4)4.0 TFSI V8
10.1 L/100 km
23.3 mpg US
28.0 mpg UK

The biggest fuel consumption difference is between AUDI S8 (D4) 4.0 TFSI V8 and AUDI S8 (D5) Facelift 2021 4.0 TFSI V8: 0.7 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
AUDIS8 (D5)Facelift 20214.0 TFSI V8
257 hp/t
192 kW/t
3.9 kg/hp
AUDIS8 (D4)4.0 TFSI V8
263 hp/t
196 kW/t
3.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIS8 (D5)Facelift 20214.0 TFSI V8
759 km
472 mi
AUDIS8 (D4)4.0 TFSI V8
891 km
554 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIS8 (D5)Facelift 20214.0 TFSI V8
571 hp
426 kW
3.8 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
AUDIS8 (D4)4.0 TFSI V8
520 hp
388 kW
4.2 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
AUDIS8 (D5)Facelift 20214.0 TFSI V8
Power
571 hp
426 kW
0-100 km/h3.8 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
5,190 mm
204.3 in
Height
1,475 mm
58.1 in
AUDIS8 (D4)4.0 TFSI V8
Power
520 hp
388 kW
0-100 km/h4.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
5,146 mm
202.6 in
Height
1,458 mm
57.4 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
AUDIS8 (D5)Facelift 20214.0 TFSI V8
Power
571 hp
426 kW
0-100 km/h3.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
AUDIS8 (D4)4.0 TFSI V8
Power
520 hp
388 kW
0-100 km/h4.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.1 L/100 km
23.3 mpg US
28.0 mpg UK

AUDI S8 (D4) 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
AUDIS8 (D5)Facelift 20214.0 TFSI V8
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
3.8 s
AUDIS8 (D4)4.0 TFSI V8
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
4.2 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
AUDIS8 (D5)Facelift 20214.0 TFSI V8
257 hp/t
192 kW/t
3.9 kg/hp
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
AUDIS8 (D4)4.0 TFSI V8
263 hp/t
196 kW/t
3.8 kg/hp
10.1 L/100 km
23.3 mpg US
28.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIS8 (D5)Facelift 20214.0 TFSI V8AUDIS8 (D4)4.0 TFSI V8
Power
571 hp
426 kW
520 hp
388 kW
Torque
800 Nm
590 lb-ft
650 Nm
479 lb-ft
Acceleration
3.8 s
4.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
2,220 kg
4,894 lb
1,975 kg
4,354 lb
Fuel consumption
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
10.1 L/100 km
23.3 mpg US
28.0 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
505 L
17.8 cu ft
Length
5,190 mm
204.3 in
Height
1,475 mm
58.1 in
Doors/seats
4 doors
5 seats
Trunk
520 L
18.4 cu ft
Length
5,146 mm
202.6 in
Height
1,458 mm
57.4 in
Range score
759 km
472 mi
891 km
554 mi
CO2 score
-
235 g/km
Trunk score
505 L
17.8 cu ft
520 L
18.4 cu ft
Power-to-weight score
257 hp/t
192 kW/t
3.9 kg/hp
263 hp/t
196 kW/t
3.8 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 S8 (D5) Facelift 2021 4.0 TFSI V8AUDI S8 (D4) 4.0 TFSI V8
Consumption10.8 L/100 km21.8 mpg US26.2 mpg UK10.1 L/100 km23.3 mpg US28 mpg UK
Cost / 100 km18.90 LC100 km17.68 LC100 km
Cost / 100 mi30.42 LC100 mi28.45 LC100 mi
Annual fuel used1,620 L428 US gal356 UK gal1,515 L400 US gal333 UK gal
Annual fuel cost2,835 LC/year2,651 LC/year

Head-to-head comparisons

AUDI S8 (D5) Facelift 2021 4.0 TFSI V8

  • Has 51 hp more
  • Has 150 Nm more
  • Is 0.4 s quicker from 0-100 km/h

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

AUDI S8 (D4) 4.0 TFSI V8

  • Is 245 kg lighter
  • Uses 0.7 L/100 km less fuel
  • Has 6 hp/t better power-to-weight
  • Has 132 km (82 mi) more estimated range
  • Has 15 L more trunk volume

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI S8 (D5) 4.0 TFSI V8
AUDI S8 (D4) 4.0 TFSI V8
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