Car comparison

Porsche Cayenne (955) Turbo S 4.5 V8vsPorsche Cayenne III S 2.9 V6

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

Porsche Cayenne III

S 2.9 V6

440 hp2894 ccGasolineAWDAutomaticTwin-turboSUV2017-2023

Comparison overview

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

Best choices

Porsche Cayenne III S 2.9 V6

  • Lightest
    2,020 kg
    4,453 lb
  • Lowest combined fuel consumption
    9.4 L/100 km
    25.0 mpg US
    30.1 mpg UK
  • Lowest city consumption
    11.8 L/100 km
    19.9 mpg US
    23.9 mpg UK
  • Lowest highway consumption
    8.4 L/100 km
    28.0 mpg US
    33.6 mpg UK
  • Best estimated range
    798 km
    496 mi
  • Largest trunk
    770 L
  • Best economy score
    82/100
  • Best practicality score
    92/100

Porsche Cayenne (955) Turbo S 4.5 V8

  • Quickest 0-100 km/h
    5.2 s
  • Fastest top speed
    270 km/h
    168 mph
  • Most powerful
    521 hp
    389 kW
  • Highest torque
    720 Nm
    531 lb-ft
  • Best power-to-weight
    221 hp/t
    165 kW/t
    4.5 kg/hp
  • Best overall score
    81/100
  • Best performance score
    79/100

Specification comparison

Specification comparison
ModelPorscheCayenne (955)Turbo S 4.5 V8PorscheCayenne IIIS 2.9 V6
Power
521hp389kW
440hp328kW
Torque
720Nm531lb-ft
550Nm406lb-ft
Curb weight
2,355kg5,192lb
2,020kg4,453lb
Gross weight
3,080kg6,790lb
2,840kg6,261lb
Top speed
270 km/h
168 mph
265 km/h
165 mph
To 99% top speed
77.5s99% target: 267 km/h / 166 mph
Calculated
68.6s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.2s
5.2s
0-200 km/h
18.3s
Calculated
17.9s
Calculated
0-60 mph
4.9s
Calculated
4.9s
Calculated
Fuel consumption
15.7L/100 km15mpg US18.0mpg UK
9.4L/100 km25mpg US30.1mpg UK
Fuel consumption city
21.9L/100 km10.7mpg US12.9mpg UK
11.8L/100 km19.9mpg US23.9mpg UK
Fuel consumption highway
11.9L/100 km19.8mpg US23.7mpg UK
8.4L/100 km28mpg US33.6mpg UK
Quarter mile
13.3s
Calculated
13.3s
Calculated
Power-to-weight
221hp/t165kW/t100hp/1000 lb
Calculated
218hp/t162kW/t99hp/1000 lb
Calculated
Torque-to-weight
306Nm/t205lb-ft/ton
Calculated
272Nm/t182lb-ft/ton
Calculated
Estimated range
637km396mi
Calculated
798km496mi
Calculated
Displacement
4,511cc275cu in
2,894cc177cu in
Length
4,786mm188in
4,918mm194in
Width
1,928mm76in
1,983mm78in
Height
1,699mm67in
1,696mm67in
Wheelbase
2,855mm112in
2,895mm114in
Front track
1,647mm65in
-
Rear track
1,662mm65in
-
Trunk volume
540L
770L
Max trunk volume
1,770L
1,710L
Doors
5
5
Seats
5
5
Fuel tank
100L
75L
CO2 emissions-
213g/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.

Porsche Cayenne (955) Turbo S 4.5 V8Porsche Cayenne III S 2.9 V6PowerTorque
  • Porsche Cayenne (955) Turbo S 4.5 V8: Power / Torque
  • Porsche Cayenne III S 2.9 V6: 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
PorscheCayenne IIIS 2.9 V65,700-6,600 rpm1,800-5,500 rpm6,850 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayenne (955)Turbo S 4.5 V8PorscheCayenne IIIS 2.9 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
4.9 s
4.9 s
0-100 km/h
0-62 mph
5.2 s
5.2 s
0-200 km/h
0-124 mph
18.3 s
17.9 s
Top speed
270 km/h
168 mph
265 km/h
165 mph
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.8 s
5.8 s
1/8 mile
201 m
8.7 s
8.7 s
1000 ft
305 m
11.2 s
11.2 s
1/4 mile
402 m
13.3 s
13.3 s
Trap speed
1/4 mile
402 m
174 km/h
108 mph
175 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
PorscheCayenne IIIS 2.9 V6
440 hp
328 kW

Porsche Cayenne (955) Turbo S 4.5 V8 has 81 hp more than Porsche Cayenne III S 2.9 V6.

The biggest power difference is between Porsche Cayenne III S 2.9 V6 and Porsche Cayenne (955) Turbo S 4.5 V8: 81 hp (60 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
PorscheCayenne IIIS 2.9 V6
550 Nm
406 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
PorscheCayenne IIIS 2.9 V6
2,020 kg
4,453 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
PorscheCayenne IIIS 2.9 V6
265 km/h
165 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
PorscheCayenne IIIS 2.9 V65.2 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
PorscheCayenne IIIS 2.9 V6
9.4 L/100 km
25.0 mpg US
30.1 mpg UK

The biggest fuel consumption difference is between Porsche Cayenne III S 2.9 V6 and Porsche Cayenne (955) Turbo S 4.5 V8: 6.3 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
PorscheCayenne IIIS 2.9 V6
218 hp/t
162 kW/t
4.6 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
PorscheCayenne IIIS 2.9 V6
798 km
496 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
PorscheCayenne IIIS 2.9 V6
440 hp
328 kW
5.2 s
265 km/h
165 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
PorscheCayenne IIIS 2.9 V6
Power
440 hp
328 kW
0-100 km/h5.2 s
Top speed
265 km/h
165 mph
Doors/seats
5 doors
5 seats
Trunk
770 L
27.2 cu ft
Length
4,918 mm
193.6 in
Height
1,696 mm
66.8 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
PorscheCayenne IIIS 2.9 V6
Power
440 hp
328 kW
0-100 km/h5.2 s
Top speed
265 km/h
165 mph
9.4 L/100 km
25.0 mpg US
30.1 mpg UK

Porsche Cayenne III S 2.9 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
PorscheCayenne (955)Turbo S 4.5 V8
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
5.2 s
PorscheCayenne IIIS 2.9 V6
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
5.2 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
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
PorscheCayenne IIIS 2.9 V6
218 hp/t
162 kW/t
4.6 kg/hp
9.4 L/100 km
25.0 mpg US
30.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayenne (955)Turbo S 4.5 V8PorscheCayenne IIIS 2.9 V6
Power
521 hp
389 kW
440 hp
328 kW
Torque
720 Nm
531 lb-ft
550 Nm
406 lb-ft
Acceleration
5.2 s
5.2 s
Top speed
270 km/h
168 mph
265 km/h
165 mph
Lightness
2,355 kg
5,192 lb
2,020 kg
4,453 lb
Fuel consumption
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
9.4 L/100 km
25.0 mpg US
30.1 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
770 L
27.2 cu ft
Length
4,918 mm
193.6 in
Height
1,696 mm
66.8 in
Range score
637 km
396 mi
798 km
496 mi
CO2 score
-
213 g/km
Trunk score
540 L
19.1 cu ft
770 L
27.2 cu ft
Power-to-weight score
221 hp/t
165 kW/t
4.5 kg/hp
218 hp/t
162 kW/t
4.6 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
VehiclePorsche Cayenne (955) Turbo S 4.5 V8Porsche Cayenne III S 2.9 V6
Consumption15.7 L/100 km15 mpg US18 mpg UK9.4 L/100 km25 mpg US30.1 mpg UK
Cost / 100 km27.47 LC100 km16.45 LC100 km
Cost / 100 mi44.22 LC100 mi26.47 LC100 mi
Annual fuel used2,355 L622 US gal518 UK gal1,410 L372 US gal310 UK gal
Annual fuel cost4,121 LC/year2,468 LC/year

Head-to-head comparisons

Porsche Cayenne (955) Turbo S 4.5 V8

  • Has 81 hp more
  • Has 170 Nm more
  • Has 5 km/h (3 mph) higher top speed
  • Has 3 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

Porsche Cayenne III S 2.9 V6

  • Is 335 kg lighter
  • Uses 6.3 L/100 km less fuel
  • Has 161 km (100 mi) more estimated range
  • Has 230 L more trunk volume

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Cayenne (955) Turbo S 4.5 V8
Porsche Cayenne III S 2.9 V6
Compare selected cars
2 vehicles selected

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