Car comparison

Porsche Cayenne (955) Turbo S 4.5 V8vsBMW X5 M (E70) 4.4

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

BMW X5 M (E70)

4.4

555 hp4395 ccGasolineAWDAutomaticTurbochargedSUV2010-2013

Comparison overview

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

Best choices

BMW X5 M (E70) 4.4

  • Quickest 0-100 km/h
    4.7 s
  • Most powerful
    555 hp
    414 kW
  • Lightest
    2,305 kg
    5,082 lb
  • Best power-to-weight
    241 hp/t
    180 kW/t
    4.2 kg/hp
  • Lowest combined fuel consumption
    13.9 L/100 km
    16.9 mpg US
    20.3 mpg UK
  • Lowest city consumption
    19.3 L/100 km
    12.2 mpg US
    14.6 mpg UK
  • Lowest highway consumption
    10.8 L/100 km
    21.8 mpg US
    26.2 mpg UK
  • Largest trunk
    620 L
  • Best overall score
    83/100
  • Best economy score
    70/100
  • Best practicality score
    90/100

Specification comparison

Specification comparison
ModelPorscheCayenne (955)Turbo S 4.5 V8BMWX5 M (E70)4.4
Power
521hp389kW
555hp414kW
Torque
720Nm531lb-ft
680Nm502lb-ft
Curb weight
2,355kg5,192lb
2,305kg5,082lb
Gross weight
3,080kg6,790lb
2,905kg6,404lb
Top speed
270 km/h
168 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
77.4s99% target: 267 km/h / 166 mph
Calculated
63.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.2s
4.7s
0-200 km/h
18.3s
Calculated
16.9s
0-60 mph
4.9s
Calculated
4.5s
Calculated
Fuel consumption
15.7L/100 km15mpg US18.0mpg UK
13.9L/100 km16.9mpg US20.3mpg UK
Fuel consumption city
21.9L/100 km10.7mpg US12.9mpg UK
19.3L/100 km12.2mpg US14.6mpg UK
Fuel consumption highway
11.9L/100 km19.8mpg US23.7mpg UK
10.8L/100 km21.8mpg US26.2mpg UK
Quarter mile
13.3s
Calculated
12.8s
Calculated
Power-to-weight
221hp/t165kW/t100hp/1000 lb
Calculated
241hp/t180kW/t109hp/1000 lb
Calculated
Torque-to-weight
306Nm/t205lb-ft/ton
Calculated
295Nm/t197lb-ft/ton
Calculated
Estimated range
637km396mi
Calculated
612km380mi
Calculated
Displacement
4,511cc275cu in
4,395cc268cu in
Length
4,786mm188in
4,851mm191in
Width
1,928mm76in
1,994mm79in
Height
1,699mm67in
1,764mm69in
Wheelbase
2,855mm112in
2,933mm115in
Front track
1,647mm65in
1,660mm65in
Rear track
1,662mm65in
1,672mm66in
Ground clearance-
207mm8in
Trunk volume
540L
620L
Max trunk volume
1,770L
1,750L
Doors
5
5
Seats
5
5
Fuel tank
100L
85L
CO2 emissions-
325g/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 V8BMW X5 M (E70) 4.4PowerTorque
  • Porsche Cayenne (955) Turbo S 4.5 V8: Power / Torque
  • BMW X5 M (E70) 4.4: 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
BMWX5 M (E70)4.46,000 rpm1,500-5,650 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayenne (955)Turbo S 4.5 V8BMWX5 M (E70)4.4
Acceleration checkpoints
0-60 mph
0-97 km/h
4.9 s
4.5 s
0-100 km/h
0-62 mph
5.2 s
4.7 s
0-200 km/h
0-124 mph
18.3 s
16.9 s
Top speed
270 km/h
168 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.1 s
330 ft
101 m
5.8 s
5.6 s
1/8 mile
201 m
8.7 s
8.4 s
1000 ft
305 m
11.2 s
10.8 s
1/4 mile
402 m
13.3 s
12.8 s
Trap speed
1/4 mile
402 m
174 km/h
108 mph
178 km/h
111 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
BMWX5 M (E70)4.4
555 hp
414 kW

BMW X5 M (E70) 4.4 has 34 hp more than Porsche Cayenne (955) Turbo S 4.5 V8.

The biggest power difference is between Porsche Cayenne (955) Turbo S 4.5 V8 and BMW X5 M (E70) 4.4: 34 hp (25 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
BMWX5 M (E70)4.4
680 Nm
502 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
BMWX5 M (E70)4.4
2,305 kg
5,082 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
BMWX5 M (E70)4.4
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
BMWX5 M (E70)4.44.7 s

The biggest 0-100 km/h difference is between BMW X5 M (E70) 4.4 and Porsche Cayenne (955) Turbo S 4.5 V8: 0.5 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
BMWX5 M (E70)4.4
13.9 L/100 km
16.9 mpg US
20.3 mpg UK

The biggest fuel consumption difference is between BMW X5 M (E70) 4.4 and Porsche Cayenne (955) Turbo S 4.5 V8: 1.8 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
BMWX5 M (E70)4.4
241 hp/t
180 kW/t
4.2 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
BMWX5 M (E70)4.4
612 km
380 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
BMWX5 M (E70)4.4
555 hp
414 kW
4.7 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
BMWX5 M (E70)4.4
Power
555 hp
414 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
620 L
21.9 cu ft
Length
4,851 mm
191.0 in
Height
1,764 mm
69.4 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
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
BMWX5 M (E70)4.4
Power
555 hp
414 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
13.9 L/100 km
16.9 mpg US
20.3 mpg UK

BMW X5 M (E70) 4.4 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
BMWX5 M (E70)4.4
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
4.7 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
BMWX5 M (E70)4.4
241 hp/t
180 kW/t
4.2 kg/hp
13.9 L/100 km
16.9 mpg US
20.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayenne (955)Turbo S 4.5 V8BMWX5 M (E70)4.4
Power
521 hp
389 kW
555 hp
414 kW
Torque
720 Nm
531 lb-ft
680 Nm
502 lb-ft
Acceleration
5.2 s
4.7 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
2,305 kg
5,082 lb
Fuel consumption
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
13.9 L/100 km
16.9 mpg US
20.3 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
620 L
21.9 cu ft
Length
4,851 mm
191.0 in
Height
1,764 mm
69.4 in
Range score
637 km
396 mi
612 km
380 mi
CO2 score
-
325 g/km
Trunk score
540 L
19.1 cu ft
620 L
21.9 cu ft
Power-to-weight score
221 hp/t
165 kW/t
4.5 kg/hp
241 hp/t
180 kW/t
4.2 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 V8BMW X5 M (E70) 4.4
Consumption15.7 L/100 km15 mpg US18 mpg UK13.9 L/100 km16.9 mpg US20.3 mpg UK
Cost / 100 km27.47 LC100 km24.33 LC100 km
Cost / 100 mi44.22 LC100 mi39.15 LC100 mi
Annual fuel used2,355 L622 US gal518 UK gal2,085 L551 US gal459 UK gal
Annual fuel cost4,121 LC/year3,649 LC/year

Head-to-head comparisons

Porsche Cayenne (955) Turbo S 4.5 V8

  • Has 40 Nm more
  • Has 10 km/h (6 mph) higher top speed
  • Has 25 km (16 mi) more estimated range

Pros

  • Highest top speed
  • Highest torque
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

BMW X5 M (E70) 4.4

  • Has 34 hp more
  • Is 50 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Uses 1.8 L/100 km less fuel
  • Has 20 hp/t better power-to-weight
  • Has 80 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Cayenne (955) Turbo S 4.5 V8
BMW X5 M (E70) 4.4
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