Car comparison

Porsche Cayenne III S 2.9 V6vsBMW X7 (G07) 50i

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

BMW X7 (G07)

50i

462 hp4395 ccGasolineAWDAutomaticTurbochargedSUV2018-2019

Comparison overview

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

Best choices

Porsche Cayenne III S 2.9 V6

  • Quickest 0-100 km/h
    5.2 s
  • 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 CO2 emissions
    213 g/km
  • Best estimated range
    798 km
    496 mi
  • Largest trunk
    770 L
  • Best overall score
    80/100
  • Best performance score
    74/100
  • Best economy score
    82/100
  • Best practicality score
    92/100

Specification comparison

Specification comparison
ModelPorscheCayenne IIIS 2.9 V6BMWX7 (G07)50i
Power
440hp328kW
462hp345kW
Torque
550Nm406lb-ft
650Nm479lb-ft
Curb weight
2,020kg4,453lb
2,460kg5,423lb
Gross weight
2,840kg6,261lb
3,255kg7,176lb
Top speed
265 km/h
165 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
68.5s99% target: 262 km/h / 163 mph
Calculated
80.3s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.2s
5.4s
0-200 km/h
17.8s
Calculated
20.4s
Calculated
0-60 mph
4.9s
Calculated
5.1s
Calculated
Fuel consumption
9.4L/100 km25mpg US30.1mpg UK
11.4L/100 km20.6mpg US24.8mpg UK
Fuel consumption city
11.8L/100 km19.9mpg US23.9mpg UK
-
Fuel consumption highway
8.4L/100 km28mpg US33.6mpg UK
-
Quarter mile
13.3s
Calculated
13.6s
Calculated
Power-to-weight
218hp/t162kW/t99hp/1000 lb
Calculated
188hp/t140kW/t85hp/1000 lb
Calculated
Torque-to-weight
272Nm/t182lb-ft/ton
Calculated
264Nm/t177lb-ft/ton
Calculated
Estimated range
798km496mi
Calculated
728km452mi
Calculated
Displacement
2,894cc177cu in
4,395cc268cu in
Length
4,918mm194in
5,151mm203in
Width
1,983mm78in
2,000mm79in
Height
1,696mm67in
1,805mm71in
Wheelbase
2,895mm114in
3,105mm122in
Front track-
1,684mm66in
Rear track-
1,705mm67in
Ground clearance-
221mm9in
Trunk volume
770L
326L
Max trunk volume
1,710L
2,120L
Doors
5
5
Seats
5
6
Fuel tank
75L
83L
CO2 emissions
213g/km
261g/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 V6BMW X7 (G07) 50iPowerTorque
  • Porsche Cayenne III S 2.9 V6: Power / Torque
  • BMW X7 (G07) 50i: 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
BMWX7 (G07)50i5,250-6,000 rpm1,500-4,750 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayenne IIIS 2.9 V6BMWX7 (G07)50i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.9 s
5.1 s
0-100 km/h
0-62 mph
5.2 s
5.4 s
0-200 km/h
0-124 mph
17.8 s
20.4 s
Top speed
265 km/h
165 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
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
8.8 s
1000 ft
305 m
11.2 s
11.4 s
1/4 mile
402 m
13.3 s
13.6 s
Trap speed
1/4 mile
402 m
175 km/h
109 mph
169 km/h
105 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
BMWX7 (G07)50i
462 hp
345 kW

BMW X7 (G07) 50i has 22 hp more than Porsche Cayenne III S 2.9 V6.

The biggest power difference is between Porsche Cayenne III S 2.9 V6 and BMW X7 (G07) 50i: 22 hp (16 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
BMWX7 (G07)50i
650 Nm
479 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
BMWX7 (G07)50i
2,460 kg
5,423 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
BMWX7 (G07)50i
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 IIIS 2.9 V65.2 s
BMWX7 (G07)50i5.4 s

Although BMW X7 (G07) 50i has more power, Porsche Cayenne III S 2.9 V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche Cayenne III S 2.9 V6 and BMW X7 (G07) 50i: 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
BMWX7 (G07)50i
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

The biggest fuel consumption difference is between Porsche Cayenne III S 2.9 V6 and BMW X7 (G07) 50i: 2.0 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
BMWX7 (G07)50i
188 hp/t
140 kW/t
5.3 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
BMWX7 (G07)50i
728 km
452 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
BMWX7 (G07)50i
462 hp
345 kW
5.4 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 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
BMWX7 (G07)50i
Power
462 hp
345 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
6 seats
Trunk
326 L
11.5 cu ft
Length
5,151 mm
202.8 in
Height
1,805 mm
71.1 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
BMWX7 (G07)50i
Power
462 hp
345 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
11.4 L/100 km
20.6 mpg US
24.8 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
BMWX7 (G07)50i
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
5.4 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
BMWX7 (G07)50i
188 hp/t
140 kW/t
5.3 kg/hp
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayenne IIIS 2.9 V6BMWX7 (G07)50i
Power
440 hp
328 kW
462 hp
345 kW
Torque
550 Nm
406 lb-ft
650 Nm
479 lb-ft
Acceleration
5.2 s
5.4 s
Top speed
265 km/h
165 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
2,020 kg
4,453 lb
2,460 kg
5,423 lb
Fuel consumption
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
11.4 L/100 km
20.6 mpg US
24.8 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
6 seats
Trunk
326 L
11.5 cu ft
Length
5,151 mm
202.8 in
Height
1,805 mm
71.1 in
Range score
798 km
496 mi
728 km
452 mi
CO2 score
213 g/km
261 g/km
Trunk score
770 L
27.2 cu ft
326 L
11.5 cu ft
Power-to-weight score
218 hp/t
162 kW/t
4.6 kg/hp
188 hp/t
140 kW/t
5.3 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 V6BMW X7 (G07) 50i
Consumption9.4 L/100 km25 mpg US30.1 mpg UK11.4 L/100 km20.6 mpg US24.8 mpg UK
Cost / 100 km16.45 LC100 km19.95 LC100 km
Cost / 100 mi26.47 LC100 mi32.11 LC100 mi
Annual fuel used1,410 L372 US gal310 UK gal1,710 L452 US gal376 UK gal
Annual fuel cost2,468 LC/year2,993 LC/year

Head-to-head comparisons

Porsche Cayenne III S 2.9 V6

  • Is 440 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Uses 2.0 L/100 km less fuel
  • Has 30 hp/t better power-to-weight
  • Has 70 km (43 mi) more estimated range
  • Has 444 L more trunk volume
  • Emits 48 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power

BMW X7 (G07) 50i

  • Has 22 hp more
  • Has 100 Nm more

Pros

  • Most powerful
  • Highest torque

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Smallest trunk
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Cayenne III S 2.9 V6
BMW X7 (G07) 50i
Compare selected cars
2 vehicles selected

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