Car comparison

Porsche Cayenne (955) · Facelift 2007 Turbo S 4.8 V8vsBMW X6 M (E71) · Facelift 2012 4.4 V8

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

New comparison

Porsche Cayenne (955) · Facelift 2007

Turbo S 4.8 V8

550 hp4806 ccGasolineAWDAutomaticTwin-turboSUV2008-2010
VS

BMW X6 M (E71) · Facelift 2012

4.4 V8

560 hp4395 ccGasolineRWDAutomaticTurbochargedSUV2012-2014

Comparison overview

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

Best choices

BMW X6 M (E71) Facelift 2012 4.4 V8

  • Quickest 0-100 km/h
    4.7 s
  • Most powerful
    560 hp
    418 kW
  • Best power-to-weight
    235 hp/t
    175 kW/t
    4.3 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
  • Best economy score
    70/100
  • Best practicality score
    92/100

Porsche Cayenne (955) Facelift 2007 Turbo S 4.8 V8

  • Fastest top speed
    290 km/h
    180 mph Unrestricted
    280 km/h
    174 mph Restricted
  • Highest torque
    750 Nm
    553 lb-ft
  • Lightest
    2,355 kg
    5,192 lb
  • Lowest highway consumption
    10.5 L/100 km
    22.4 mpg US
    26.9 mpg UK
  • Best estimated range
    671 km
    417 mi
  • Best overall score
    84/100
  • Best performance score
    83/100

Specification comparison

Specification comparison
ModelPorscheCayenne (955)Facelift 2007Turbo S 4.8 V8BMWX6 M (E71)Facelift 20124.4 V8
Power
550hp410kW
560hp418kW
Torque
750Nm553lb-ft
680Nm502lb-ft
Curb weight
2,355kg5,192lb
2,380kg5,247lb
Gross weight
3,080kg6,790lb
2,905kg6,404lb
Top speed
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
71.4s99% target: 287 km/h / 178 mph
Calculated
71.2s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.8s
4.7s
0-200 km/h
15.2s
Calculated
17.9s
Calculated
0-60 mph
4.6s
Calculated
4.5s
Calculated
Fuel consumption
14.9L/100 km15.8mpg US19.0mpg UK
13.9L/100 km16.9mpg US20.3mpg UK
Fuel consumption city
22.5L/100 km10.5mpg US12.6mpg UK
19.3L/100 km12.2mpg US14.6mpg UK
Fuel consumption highway
10.5L/100 km22.4mpg US26.9mpg UK
10.8L/100 km21.8mpg US26.2mpg UK
Quarter mile
12.8s
Calculated
12.9s
Calculated
Power-to-weight
234hp/t174kW/t106hp/1000 lb
Calculated
235hp/t175kW/t107hp/1000 lb
Calculated
Torque-to-weight
318Nm/t213lb-ft/ton
Calculated
286Nm/t191lb-ft/ton
Calculated
Estimated range
671km417mi
Calculated
612km380mi
Calculated
Displacement
4,806cc293cu in
4,395cc268cu in
Length
4,795mm189in
4,876mm192in
Width
1,928mm76in
1,983mm78in
Height
1,696mm67in
1,983mm78in
Wheelbase
2,855mm112in
2,933mm115in
Front track
1,641mm65in
1,660mm65in
Rear track
1,656mm65in
1,672mm66in
Ground clearance
271mm11in
-
Trunk volume
540L
-
Max trunk volume
1,770L
-
Doors
5
5
Seats
5
5
Fuel tank
100L
85L

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) Facelift 2007 Turbo S 4.8 V8BMW X6 M (E71) Facelift 2012 4.4 V8PowerTorque
  • Porsche Cayenne (955) Facelift 2007 Turbo S 4.8 V8: Power / Torque
  • BMW X6 M (E71) Facelift 2012 4.4 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheCayenne (955)Facelift 2007Turbo S 4.8 V86,000 rpm2,250 rpm6,250 rpm
BMWX6 M (E71)Facelift 20124.4 V86,000 rpm1,500-5,650 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayenne (955)Facelift 2007Turbo S 4.8 V8BMWX6 M (E71)Facelift 20124.4 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.6 s
4.5 s
0-100 km/h
0-62 mph
4.8 s
4.7 s
0-200 km/h
0-124 mph
15.2 s
17.9 s
Top speed
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.0 s
330 ft
101 m
5.7 s
5.5 s
1/8 mile
201 m
8.4 s
8.4 s
1000 ft
305 m
10.8 s
10.8 s
1/4 mile
402 m
12.8 s
12.9 s
Trap speed
1/4 mile
402 m
184 km/h
114 mph
175 km/h
109 mph

Power comparison

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

Chart data table
VehicleValue
PorscheCayenne (955)Facelift 2007Turbo S 4.8 V8
550 hp
410 kW
BMWX6 M (E71)Facelift 20124.4 V8
560 hp
418 kW

BMW X6 M (E71) Facelift 2012 4.4 V8 has 10 hp more than Porsche Cayenne (955) Facelift 2007 Turbo S 4.8 V8.

The biggest power difference is between Porsche Cayenne (955) Facelift 2007 Turbo S 4.8 V8 and BMW X6 M (E71) Facelift 2012 4.4 V8: 10 hp (7 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheCayenne (955)Facelift 2007Turbo S 4.8 V8
750 Nm
553 lb-ft
BMWX6 M (E71)Facelift 20124.4 V8
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)Facelift 2007Turbo S 4.8 V8
2,355 kg
5,192 lb
BMWX6 M (E71)Facelift 20124.4 V8
2,380 kg
5,247 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)Facelift 2007Turbo S 4.8 V8
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
BMWX6 M (E71)Facelift 20124.4 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)Facelift 2007Turbo S 4.8 V84.8 s
BMWX6 M (E71)Facelift 20124.4 V84.7 s

The biggest 0-100 km/h difference is between BMW X6 M (E71) Facelift 2012 4.4 V8 and Porsche Cayenne (955) Facelift 2007 Turbo S 4.8 V8: 0.1 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)Facelift 2007Turbo S 4.8 V8
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
BMWX6 M (E71)Facelift 20124.4 V8
13.9 L/100 km
16.9 mpg US
20.3 mpg UK

The biggest fuel consumption difference is between BMW X6 M (E71) Facelift 2012 4.4 V8 and Porsche Cayenne (955) Facelift 2007 Turbo S 4.8 V8: 1.0 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 (955)Facelift 2007Turbo S 4.8 V8
234 hp/t
174 kW/t
4.3 kg/hp
BMWX6 M (E71)Facelift 20124.4 V8
235 hp/t
175 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)Facelift 2007Turbo S 4.8 V8
671 km
417 mi
BMWX6 M (E71)Facelift 20124.4 V8
612 km
380 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheCayenne (955)Facelift 2007Turbo S 4.8 V8
550 hp
410 kW
4.8 s
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
BMWX6 M (E71)Facelift 20124.4 V8
560 hp
418 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)Facelift 2007Turbo S 4.8 V8
Power
550 hp
410 kW
0-100 km/h4.8 s
Top speed
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
Doors/seats
5 doors
5 seats
Trunk
540 L
19.1 cu ft
Length
4,795 mm
188.8 in
Height
1,696 mm
66.8 in
BMWX6 M (E71)Facelift 20124.4 V8
Power
560 hp
418 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-
Length
4,876 mm
192.0 in
Height
1,983 mm
78.1 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 (955)Facelift 2007Turbo S 4.8 V8
Power
550 hp
410 kW
0-100 km/h4.8 s
Top speed
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
BMWX6 M (E71)Facelift 20124.4 V8
Power
560 hp
418 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 X6 M (E71) Facelift 2012 4.4 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)Facelift 2007Turbo S 4.8 V8
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
4.8 s
BMWX6 M (E71)Facelift 20124.4 V8
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)Facelift 2007Turbo S 4.8 V8
234 hp/t
174 kW/t
4.3 kg/hp
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
BMWX6 M (E71)Facelift 20124.4 V8
235 hp/t
175 kW/t
4.3 kg/hp
13.9 L/100 km
16.9 mpg US
20.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayenne (955)Facelift 2007Turbo S 4.8 V8BMWX6 M (E71)Facelift 20124.4 V8
Power
550 hp
410 kW
560 hp
418 kW
Torque
750 Nm
553 lb-ft
680 Nm
502 lb-ft
Acceleration
4.8 s
4.7 s
Top speed
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
2,355 kg
5,192 lb
2,380 kg
5,247 lb
Fuel consumption
14.9 L/100 km
15.8 mpg US
19.0 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
4,795 mm
188.8 in
Height
1,696 mm
66.8 in
Doors/seats
5 doors
5 seats
Trunk-
Length
4,876 mm
192.0 in
Height
1,983 mm
78.1 in
Range score
671 km
417 mi
612 km
380 mi
Trunk score
540 L
19.1 cu ft
-
Power-to-weight score
234 hp/t
174 kW/t
4.3 kg/hp
235 hp/t
175 kW/t
4.3 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 (955) Facelift 2007 Turbo S 4.8 V8BMW X6 M (E71) Facelift 2012 4.4 V8
Consumption14.9 L/100 km15.8 mpg US19 mpg UK13.9 L/100 km16.9 mpg US20.3 mpg UK
Cost / 100 km26.08 LC100 km24.33 LC100 km
Cost / 100 mi41.96 LC100 mi39.15 LC100 mi
Annual fuel used2,235 L590 US gal492 UK gal2,085 L551 US gal459 UK gal
Annual fuel cost3,911 LC/year3,649 LC/year

Head-to-head comparisons

Porsche Cayenne (955) Facelift 2007 Turbo S 4.8 V8

  • Has 70 Nm more
  • Is 25 kg lighter
  • Has 30 km/h (19 mph) higher top speed
  • Has 60 km (37 mi) more estimated range

Pros

  • Highest top speed
  • Highest torque
  • Lightest
  • Best estimated range

Cons

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

BMW X6 M (E71) Facelift 2012 4.4 V8

  • Has 10 hp more
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 1.0 L/100 km less fuel
  • Has 2 hp/t better power-to-weight

Pros

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

Cons

  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Cayenne (955) Turbo S 4.8 V8
BMW X6 M (E71) 4.4 V8
Compare selected cars
2 vehicles selected

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