Car comparison

Porsche Cayenne (955) Turbo S 4.5 V8vsMercedes-Benz M-class (W164) · Facelift 2008 AMG ML 63 V8

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

New comparison

Porsche Cayenne (955)

Turbo S 4.5 V8

521 hp4511 ccGasolineAWDAutomaticTurbochargedSUV2005-2006
VS

Mercedes-Benz M-class (W164) · Facelift 2008

AMG ML 63 V8

510 hp6208 ccGasolineAWDAutomaticNaturally aspiratedSUV2008-2010

Comparison overview

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

Best choices

Porsche Cayenne (955) Turbo S 4.5 V8

  • Fastest top speed
    270 km/h
    168 mph
  • Most powerful
    521 hp
    389 kW
  • Highest torque
    720 Nm
    531 lb-ft
  • Lowest combined fuel consumption
    15.7 L/100 km
    15.0 mpg US
    18.0 mpg UK
  • Lowest city consumption
    21.9 L/100 km
    10.7 mpg US
    12.9 mpg UK
  • Lowest highway consumption
    11.9 L/100 km
    19.8 mpg US
    23.7 mpg UK
  • Best estimated range
    637 km
    396 mi
  • Best performance score
    79/100
  • Best economy score
    65/100

Specification comparison

Specification comparison
ModelPorscheCayenne (955)Turbo S 4.5 V8Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Power
521hp389kW
510hp380kW
Torque
720Nm531lb-ft
630Nm465lb-ft
Curb weight
2,355kg5,192lb
2,235kg4,927lb
Gross weight
3,080kg6,790lb
2,880kg6,349lb
Top speed
270 km/h
168 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
77.5s99% target: 267 km/h / 166 mph
Calculated
66.2s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.2s
5.0s
0-200 km/h
18.3s
Calculated
17.8s
Calculated
0-60 mph
4.9s
Calculated
4.8s
Calculated
Fuel consumption
15.7L/100 km15mpg US18.0mpg UK
16.5L/100 km14.3mpg US17.1mpg UK
Fuel consumption city
21.9L/100 km10.7mpg US12.9mpg UK
24.1L/100 km9.8mpg US11.7mpg UK
Fuel consumption highway
11.9L/100 km19.8mpg US23.7mpg UK
12.2L/100 km19.3mpg US23.2mpg UK
Quarter mile
13.3s
Calculated
13.1s
Calculated
Power-to-weight
221hp/t165kW/t100hp/1000 lb
Calculated
228hp/t170kW/t104hp/1000 lb
Calculated
Torque-to-weight
306Nm/t205lb-ft/ton
Calculated
282Nm/t189lb-ft/ton
Calculated
Estimated range
637km396mi
Calculated
576km358mi
Calculated
Displacement
4,511cc275cu in
6,208cc379cu in
Length
4,786mm188in
4,812mm189in
Width
1,928mm76in
-
Height
1,699mm67in
1,899mm75in
Wheelbase
2,855mm112in
2,915mm115in
Front track
1,647mm65in
-
Rear track
1,662mm65in
-
Ground clearance-
234mm9in
Trunk volume
540L
833L
Max trunk volume
1,770L
2,050L
Doors
5
5
Seats
5
5
Fuel tank
100L
95L

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.

Porsche Cayenne (955) Turbo S 4.5 V8Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8PowerTorque
  • Porsche Cayenne (955) Turbo S 4.5 V8: Power / Torque
  • Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheCayenne (955)Turbo S 4.5 V85,500 rpm2,750-3,750 rpm5,750 rpm
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V86,800 rpm5,200 rpm7,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayenne (955)Turbo S 4.5 V8Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.9 s
4.8 s
0-100 km/h
0-62 mph
5.2 s
5.0 s
0-200 km/h
0-124 mph
18.3 s
17.8 s
Top speed
270 km/h
168 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.8 s
5.7 s
1/8 mile
201 m
8.7 s
8.6 s
1000 ft
305 m
11.2 s
11.1 s
1/4 mile
402 m
13.3 s
13.1 s
Trap speed
1/4 mile
402 m
174 km/h
108 mph
176 km/h
109 mph

Power comparison

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

Chart data table
VehicleValue
PorscheCayenne (955)Turbo S 4.5 V8
521 hp
389 kW
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
510 hp
380 kW

Porsche Cayenne (955) Turbo S 4.5 V8 has 11 hp more than Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8.

The biggest power difference is between Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8 and Porsche Cayenne (955) Turbo S 4.5 V8: 11 hp (8 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheCayenne (955)Turbo S 4.5 V8
720 Nm
531 lb-ft
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
630 Nm
465 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
PorscheCayenne (955)Turbo S 4.5 V8
2,355 kg
5,192 lb
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
2,235 kg
4,927 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
PorscheCayenne (955)Turbo S 4.5 V8
270 km/h
168 mph
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Unrestricted
260 km/h162 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
PorscheCayenne (955)Turbo S 4.5 V85.2 s
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V85.0 s

Although Porsche Cayenne (955) Turbo S 4.5 V8 has more power, Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8 and Porsche Cayenne (955) Turbo S 4.5 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
PorscheCayenne (955)Turbo S 4.5 V8
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
16.5 L/100 km
14.3 mpg US
17.1 mpg UK

The biggest fuel consumption difference is between Porsche Cayenne (955) Turbo S 4.5 V8 and Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8: 0.8 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
PorscheCayenne (955)Turbo S 4.5 V8
221 hp/t
165 kW/t
4.5 kg/hp
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
228 hp/t
170 kW/t
4.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
PorscheCayenne (955)Turbo S 4.5 V8
637 km
396 mi
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
576 km
358 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheCayenne (955)Turbo S 4.5 V8
521 hp
389 kW
5.2 s
270 km/h
168 mph
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
510 hp
380 kW
5.0 s
Unrestricted
260 km/h162 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
PorscheCayenne (955)Turbo S 4.5 V8
Power
521 hp
389 kW
0-100 km/h5.2 s
Top speed
270 km/h
168 mph
Doors/seats
5 doors
5 seats
Trunk
540 L
19.1 cu ft
Length
4,786 mm
188.4 in
Height
1,699 mm
66.9 in
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Power
510 hp
380 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
833 L
29.4 cu ft
Length
4,812 mm
189.4 in
Height
1,899 mm
74.8 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
PorscheCayenne (955)Turbo S 4.5 V8
Power
521 hp
389 kW
0-100 km/h5.2 s
Top speed
270 km/h
168 mph
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Power
510 hp
380 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
16.5 L/100 km
14.3 mpg US
17.1 mpg UK

Porsche Cayenne (955) Turbo S 4.5 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
PorscheCayenne (955)Turbo S 4.5 V8
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
5.2 s
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
16.5 L/100 km
14.3 mpg US
17.1 mpg UK
5.0 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
PorscheCayenne (955)Turbo S 4.5 V8
221 hp/t
165 kW/t
4.5 kg/hp
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
228 hp/t
170 kW/t
4.4 kg/hp
16.5 L/100 km
14.3 mpg US
17.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayenne (955)Turbo S 4.5 V8Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Power
521 hp
389 kW
510 hp
380 kW
Torque
720 Nm
531 lb-ft
630 Nm
465 lb-ft
Acceleration
5.2 s
5.0 s
Top speed
270 km/h
168 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
2,355 kg
5,192 lb
2,235 kg
4,927 lb
Fuel consumption
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
16.5 L/100 km
14.3 mpg US
17.1 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
540 L
19.1 cu ft
Length
4,786 mm
188.4 in
Height
1,699 mm
66.9 in
Doors/seats
5 doors
5 seats
Trunk
833 L
29.4 cu ft
Length
4,812 mm
189.4 in
Height
1,899 mm
74.8 in
Range score
637 km
396 mi
576 km
358 mi
Trunk score
540 L
19.1 cu ft
833 L
29.4 cu ft
Power-to-weight score
221 hp/t
165 kW/t
4.5 kg/hp
228 hp/t
170 kW/t
4.4 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
VehiclePorsche Cayenne (955) Turbo S 4.5 V8Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8
Consumption15.7 L/100 km15 mpg US18 mpg UK16.5 L/100 km14.3 mpg US17.1 mpg UK
Cost / 100 km27.47 LC100 km28.88 LC100 km
Cost / 100 mi44.22 LC100 mi46.47 LC100 mi
Annual fuel used2,355 L622 US gal518 UK gal2,475 L654 US gal544 UK gal
Annual fuel cost4,121 LC/year4,331 LC/year

Head-to-head comparisons

Porsche Cayenne (955) Turbo S 4.5 V8

  • Has 11 hp more
  • Has 90 Nm more
  • Has 10 km/h (6 mph) higher top speed
  • Uses 0.8 L/100 km less fuel
  • Has 61 km (38 mi) more estimated range

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Smallest trunk

Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8

  • Is 120 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 7 hp/t better power-to-weight
  • Has 293 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Cayenne (955) Turbo S 4.5 V8
Mercedes-Benz M-class (W164) AMG ML 63 V8
Compare selected cars
2 vehicles selected

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