Car comparison

Porsche Cayenne III S 2.9 V6vsJeep Grand Cherokee IV (WK2) · Facelift 2017 SRT 6.4 V8

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

New comparison

Porsche Cayenne III

S 2.9 V6

440 hp2894 ccGasolineAWDAutomaticTwin-turboSUV2017-2023
VS

Jeep Grand Cherokee IV (WK2) · Facelift 2017

SRT 6.4 V8

468 hp6417 ccGasolineAWDAutomaticNaturally aspiratedSUV2017-2021

Comparison overview

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

Best choices

Porsche Cayenne III S 2.9 V6

  • Fastest top speed
    265 km/h
    165 mph
  • Lightest
    2,020 kg
    4,453 lb
  • Best power-to-weight
    218 hp/t
    162 kW/t
    4.6 kg/hp
  • 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
  • Best overall score
    80/100
  • Best economy score
    82/100
  • Best practicality score
    92/100

Specification comparison

Specification comparison
ModelPorscheCayenne IIIS 2.9 V6JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
Power
440hp328kW
468hp349kW
Torque
550Nm406lb-ft
624Nm460lb-ft
Curb weight
2,020kg4,453lb
2,383kg5,254lb
Gross weight
2,840kg6,261lb
2,949kg6,501lb
Top speed
265 km/h
165 mph
257 km/h
160 mph
To 99% top speed
68.6s99% target: 262 km/h / 163 mph
Calculated
72.9s99% target: 254 km/h / 158 mph
Calculated
0-100 km/h
5.2s
5.0s
0-200 km/h
17.9s
Calculated
19.1s
Calculated
0-60 mph
4.9s
Calculated
4.7s
Calculated
Fuel consumption
9.4L/100 km25mpg US30.1mpg UK
14.6L/100 km16.1mpg US19.3mpg UK
Fuel consumption city
11.8L/100 km19.9mpg US23.9mpg UK
21.4L/100 km11mpg US13.2mpg UK
Fuel consumption highway
8.4L/100 km28mpg US33.6mpg UK
10.7L/100 km22mpg US26.4mpg UK
Quarter mile
13.3s
Calculated
13.2s
Calculated
Power-to-weight
218hp/t162kW/t99hp/1000 lb
Calculated
196hp/t146kW/t89hp/1000 lb
Calculated
Torque-to-weight
272Nm/t182lb-ft/ton
Calculated
262Nm/t175lb-ft/ton
Calculated
Estimated range
798km496mi
Calculated
640km398mi
Calculated
Displacement
2,894cc177cu in
6,417cc392cu in
Length
4,918mm194in
4,846mm191in
Width
1,983mm78in
1,954mm77in
Height
1,696mm67in
1,749mm69in
Wheelbase
2,895mm114in
2,914mm115in
Front track-
1,669mm66in
Rear track-
1,661mm65in
Ground clearance-
201mm8in
Trunk volume
770L
800L
Max trunk volume
1,710L
1,689L
Doors
5
5
Seats
5
5
Fuel tank
75L
94L
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 III S 2.9 V6Jeep Grand Cherokee IV (WK2) Facelift 2017 SRT 6.4 V8PowerTorque
  • Porsche Cayenne III S 2.9 V6: Power / Torque
  • Jeep Grand Cherokee IV (WK2) Facelift 2017 SRT 6.4 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheCayenne IIIS 2.9 V65,700-6,600 rpm1,800-5,500 rpm6,850 rpm
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V86,250 rpm4,100 rpm6,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayenne IIIS 2.9 V6JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.9 s
4.7 s
0-100 km/h
0-62 mph
5.2 s
5.0 s
0-200 km/h
0-124 mph
17.9 s
19.1 s
Top speed
265 km/h
165 mph
257 km/h
160 mph
Drag race simulation
60 ft
18 m
2.2 s
2.1 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
13.2 s
Trap speed
1/4 mile
402 m
175 km/h
109 mph
172 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
PorscheCayenne IIIS 2.9 V6
440 hp
328 kW
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
468 hp
349 kW

Jeep Grand Cherokee IV (WK2) Facelift 2017 SRT 6.4 V8 has 28 hp more than Porsche Cayenne III S 2.9 V6.

The biggest power difference is between Porsche Cayenne III S 2.9 V6 and Jeep Grand Cherokee IV (WK2) Facelift 2017 SRT 6.4 V8: 28 hp (21 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheCayenne IIIS 2.9 V6
550 Nm
406 lb-ft
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
624 Nm
460 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
PorscheCayenne IIIS 2.9 V6
2,020 kg
4,453 lb
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
2,383 kg
5,254 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 IIIS 2.9 V6
265 km/h
165 mph
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
257 km/h
160 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
PorscheCayenne IIIS 2.9 V65.2 s
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V85.0 s

The biggest 0-100 km/h difference is between Jeep Grand Cherokee IV (WK2) Facelift 2017 SRT 6.4 V8 and Porsche Cayenne III S 2.9 V6: 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 IIIS 2.9 V6
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
14.6 L/100 km
16.1 mpg US
19.3 mpg UK

The biggest fuel consumption difference is between Porsche Cayenne III S 2.9 V6 and Jeep Grand Cherokee IV (WK2) Facelift 2017 SRT 6.4 V8: 5.2 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 IIIS 2.9 V6
218 hp/t
162 kW/t
4.6 kg/hp
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
196 hp/t
146 kW/t
5.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
PorscheCayenne IIIS 2.9 V6
798 km
496 mi
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
640 km
398 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheCayenne IIIS 2.9 V6
440 hp
328 kW
5.2 s
265 km/h
165 mph
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
468 hp
349 kW
5.0 s
257 km/h
160 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 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
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
Power
468 hp
349 kW
0-100 km/h5.0 s
Top speed
257 km/h
160 mph
Doors/seats
5 doors
5 seats
Trunk
800 L
28.3 cu ft
Length
4,846 mm
190.8 in
Height
1,749 mm
68.9 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 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
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
Power
468 hp
349 kW
0-100 km/h5.0 s
Top speed
257 km/h
160 mph
14.6 L/100 km
16.1 mpg US
19.3 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 IIIS 2.9 V6
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
5.2 s
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
14.6 L/100 km
16.1 mpg US
19.3 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 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
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
196 hp/t
146 kW/t
5.1 kg/hp
14.6 L/100 km
16.1 mpg US
19.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayenne IIIS 2.9 V6JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8
Power
440 hp
328 kW
468 hp
349 kW
Torque
550 Nm
406 lb-ft
624 Nm
460 lb-ft
Acceleration
5.2 s
5.0 s
Top speed
265 km/h
165 mph
257 km/h
160 mph
Lightness
2,020 kg
4,453 lb
2,383 kg
5,254 lb
Fuel consumption
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
14.6 L/100 km
16.1 mpg US
19.3 mpg UK
Practicality
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
Doors/seats
5 doors
5 seats
Trunk
800 L
28.3 cu ft
Length
4,846 mm
190.8 in
Height
1,749 mm
68.9 in
Range score
798 km
496 mi
640 km
398 mi
CO2 score
213 g/km
-
Trunk score
770 L
27.2 cu ft
800 L
28.3 cu ft
Power-to-weight score
218 hp/t
162 kW/t
4.6 kg/hp
196 hp/t
146 kW/t
5.1 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 III S 2.9 V6Jeep Grand Cherokee IV (WK2) Facelift 2017 SRT 6.4 V8
Consumption9.4 L/100 km25 mpg US30.1 mpg UK14.6 L/100 km16.1 mpg US19.3 mpg UK
Cost / 100 km16.45 LC100 km25.55 LC100 km
Cost / 100 mi26.47 LC100 mi41.12 LC100 mi
Annual fuel used1,410 L372 US gal310 UK gal2,190 L579 US gal482 UK gal
Annual fuel cost2,468 LC/year3,833 LC/year

Head-to-head comparisons

Porsche Cayenne III S 2.9 V6

  • Is 363 kg lighter
  • Has 8 km/h (5 mph) higher top speed
  • Uses 5.2 L/100 km less fuel
  • Has 21 hp/t better power-to-weight
  • Has 157 km (98 mi) more estimated range

Pros

  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Smallest trunk

Jeep Grand Cherokee IV (WK2) Facelift 2017 SRT 6.4 V8

  • Has 28 hp more
  • Has 74 Nm more
  • Is 0.2 s quicker from 0-100 km/h
  • Has 30 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Cayenne III S 2.9 V6
Jeep Grand Cherokee IV (WK2) SRT 6.4 V8
Compare selected cars
2 vehicles selected

Popular comparisons

S 2.9 V6
GTS 3.6 V6
VS
PorscheCayenne IIIS 2.9 V6vsPorscheCayenne IIFacelift 2014GTS 3.6 V6
SRT 6.4 V8
50i
VS
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8vsBMWX7 (G07)50i
S 2.9 V6
S 4.0 V8
VS
PorscheCayenne IIIS 2.9 V6vsPorscheCayenne IIIFacelift 2023S 4.0 V8
SRT 6.4 V8
GLS 580 V8
VS
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8vsMercedes-BenzGLS (X167)GLS 580 V8
S 2.9 V6
Turbo 4.8 V8
VS
PorscheCayenne IIIS 2.9 V6vsPorscheCayenne IITurbo 4.8 V8
SRT 6.4 V8
GLS 500
VS
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8vsMercedes-BenzGLS (X166)GLS 500
S 2.9 V6
Turbo 4.5 V8
VS
PorscheCayenne IIIS 2.9 V6vsPorscheCayenne (955)Turbo 4.5 V8
SRT 6.4 V8
4.0 diesel V8
VS
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8vsBentleyBentayga4.0 diesel V8
S 2.9 V6
Turbo 4.8 V8
VS
PorscheCayenne IIIS 2.9 V6vsPorscheCayenne (955)Facelift 2007Turbo 4.8 V8
SRT 6.4 V8
4.0 V8 TDI
VS
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8vsVolkswagenTouareg III (CR)4.0 V8 TDI
S 2.9 V6
Turbo 2.9 V6
VS
PorscheCayenne IIIS 2.9 V6vsPorscheMacan I (95B)Facelift 2018Turbo 2.9 V6
SRT 6.4 V8
GTS 4.0 V8
VS
JeepGrand Cherokee IV (WK2)Facelift 2017SRT 6.4 V8vsPorscheCayenne IIIGTS 4.0 V8
Porsche Cayenne III S 2.9 V6 vs Jeep Grand Cherokee IV (WK2) · Facelift 2017 SRT 6.4 V8 - car comparison - FastVsFaster