Car comparison

Porsche Cayenne (955) · Facelift 2007 Turbo 4.8 V8vsBMW X6 (E71) 50i

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

New comparison

Porsche Cayenne (955) · Facelift 2007

Turbo 4.8 V8

500 hp4806 ccGasolineAWDAutomaticTwin-turboSUV2007-2010

BMW X6 (E71)

50i

407 hp4395 ccGasolineAWDAutomaticTwin-turboSUV2008-2010

Comparison overview

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

Porsche Cayenne (955) Facelift 2007 Turbo 4.8 V8

Quickest 0-100 km/h
5.1 s
Fastest top speed
275 km/h
171 mph
Most powerful
500 hp
373 kW
Highest torque
700 Nm
516 lb-ft
Best power-to-weight
212 hp/t
158 kW/t
4.7 kg/hp
Best overall score
82/100
Best performance score
80/100
Best practicality score
86/100

BMW X6 (E71) 50i

Lightest
2,190 kg
4,828 lb
Lowest combined fuel consumption
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
Lowest city consumption
17.6 L/100 km
13.4 mpg US
16.1 mpg UK
Lowest highway consumption
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Best estimated range
680 km
423 mi
Largest trunk
570 L
Best economy score
73/100

Specification comparison

Specification comparison
Model	PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	BMWX6 (E71)50i
Power	500hp373kW	407hp304kW
Torque	700Nm516lb-ft	600Nm443lb-ft
Curb weight	2,355kg5,192lb	2,190kg4,828lb
Gross weight	3,080kg6,790lb	2,840kg6,261lb
Top speed	275 km/h 171 mph	250 km/h 155 mph
To 99% top speed	73.7s99% target: 272 km/h / 169 mph Calculated	73.4s99% target: 248 km/h / 154 mph Calculated
0-100 km/h	5.1s	5.4s
0-200 km/h	17.2s Calculated	21.1s Calculated
0-60 mph	4.9s Calculated	5.1s Calculated
Fuel consumption	14.9L/100 km15.8mpg US19.0mpg UK	12.5L/100 km18.8mpg US22.6mpg UK
Fuel consumption city	22.5L/100 km10.5mpg US12.6mpg UK	17.6L/100 km13.4mpg US16.1mpg UK
Fuel consumption highway	10.5L/100 km22.4mpg US26.9mpg UK	9.5L/100 km24.8mpg US29.7mpg UK
Quarter mile	13.2s Calculated	13.6s Calculated
Power-to-weight	212hp/t158kW/t96hp/1000 lb Calculated	186hp/t139kW/t84hp/1000 lb Calculated
Torque-to-weight	297Nm/t199lb-ft/ton Calculated	274Nm/t183lb-ft/ton Calculated
Estimated range	671km417mi Calculated	680km423mi Calculated
Displacement	4,806cc293cu in	4,395cc268cu in
Length	4,795mm189in	4,877mm192in
Width	1,928mm76in	1,983mm78in
Height	1,696mm67in	1,690mm67in
Wheelbase	2,855mm112in	2,933mm115in
Front track	1,641mm65in	1,664mm66in
Rear track	1,656mm65in	1,706mm67in
Ground clearance	271mm11in	212mm8in
Trunk volume	540L	570L
Max trunk volume	1,770L	1,450L
Doors	5	5
Seats	5	4
Fuel tank	100L	85L
CO2 emissions	-	299g/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) Facelift 2007 Turbo 4.8 V8BMW X6 (E71) 50iPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	6,000 rpm	2,250-4,500 rpm	6,700 rpm
BMWX6 (E71)50i	5,500-6,400 rpm	1,750-4,500 rpm	6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	BMWX6 (E71)50i
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.9 s	5.1 s
0-100 km/h 0-62 mph	5.1 s	5.4 s
0-200 km/h 0-124 mph	17.2 s	21.1 s
Top speed	275 km/h 171 mph	250 km/h 155 mph
	Drag race simulation
60 ft 18 m	2.2 s	2.2 s
330 ft 101 m	5.8 s	5.9 s
1/8 mile 201 m	8.7 s	8.8 s
1000 ft 305 m	11.1 s	11.4 s
1/4 mile 402 m	13.2 s	13.6 s
Trap speed 1/4 mile 402 m	177 km/h 110 mph	168 km/h 104 mph

Power comparison

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

Chart data table
Vehicle	Value
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	500 hp 373 kW
BMWX6 (E71)50i	407 hp 304 kW

Porsche Cayenne (955) Facelift 2007 Turbo 4.8 V8 has 93 hp more than BMW X6 (E71) 50i.

The biggest power difference is between BMW X6 (E71) 50i and Porsche Cayenne (955) Facelift 2007 Turbo 4.8 V8: 93 hp (69 kW).

Torque comparison

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

Chart data table
Vehicle	Value
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	700 Nm 516 lb-ft
BMWX6 (E71)50i	600 Nm 443 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	2,355 kg 5,192 lb
BMWX6 (E71)50i	2,190 kg 4,828 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
Vehicle	Value
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	275 km/h 171 mph
BMWX6 (E71)50i	250 km/h 155 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	5.1 s
BMWX6 (E71)50i	5.4 s

The biggest 0-100 km/h difference is between Porsche Cayenne (955) Facelift 2007 Turbo 4.8 V8 and BMW X6 (E71) 50i: 0.3 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
Vehicle	Value
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	14.9 L/100 km 15.8 mpg US 19.0 mpg UK
BMWX6 (E71)50i	12.5 L/100 km 18.8 mpg US 22.6 mpg UK

The biggest fuel consumption difference is between BMW X6 (E71) 50i and Porsche Cayenne (955) Facelift 2007 Turbo 4.8 V8: 2.4 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	212 hp/t 158 kW/t 4.7 kg/hp
BMWX6 (E71)50i	186 hp/t 139 kW/t 5.4 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	671 km 417 mi
BMWX6 (E71)50i	680 km 423 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	500 hp 373 kW	5.1 s	275 km/h 171 mph
BMWX6 (E71)50i	407 hp 304 kW	5.4 s	250 km/h 155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

PorscheCayenne (955)Facelift 2007Turbo 4.8 V8

Power	500 hp 373 kW
0-100 km/h	5.1 s
Top speed 275 km/h 171 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 (E71)50i

Power	407 hp 304 kW
0-100 km/h	5.4 s
Top speed 250 km/h 155 mph

Doors/seats	5 doors 4 seats
Trunk	570 L 20.1 cu ft
Length	4,877 mm 192.0 in
Height	1,690 mm 66.5 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

PorscheCayenne (955)Facelift 2007Turbo 4.8 V8

Power	500 hp 373 kW
0-100 km/h	5.1 s
Top speed 275 km/h 171 mph

14.9 L/100 km

15.8 mpg US

19.0 mpg UK

BMWX6 (E71)50i

Power	407 hp 304 kW
0-100 km/h	5.4 s
Top speed 250 km/h 155 mph

12.5 L/100 km

18.8 mpg US

22.6 mpg UK

Porsche Cayenne (955) Facelift 2007 Turbo 4.8 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	14.9 L/100 km 15.8 mpg US 19.0 mpg UK	5.1 s
BMWX6 (E71)50i	12.5 L/100 km 18.8 mpg US 22.6 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
PorscheCayenne (955)Facelift 2007Turbo 4.8 V8	212 hp/t 158 kW/t 4.7 kg/hp	14.9 L/100 km 15.8 mpg US 19.0 mpg UK
BMWX6 (E71)50i	186 hp/t 139 kW/t 5.4 kg/hp	12.5 L/100 km 18.8 mpg US 22.6 mpg UK

Detailed score breakdown

Vehicle

PorscheCayenne (955)Facelift 2007Turbo 4.8 V8

BMWX6 (E71)50i

Power

500 hp

373 kW

407 hp

304 kW

Torque

700 Nm

516 lb-ft

600 Nm

443 lb-ft

Acceleration

5.1 s

5.4 s

Top speed

275 km/h

171 mph

250 km/h

155 mph

Lightness

2,355 kg

5,192 lb

2,190 kg

4,828 lb

Fuel consumption

14.9 L/100 km

15.8 mpg US

19.0 mpg UK

12.5 L/100 km

18.8 mpg US

22.6 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 4 seats
Trunk	570 L 20.1 cu ft
Length	4,877 mm 192.0 in
Height	1,690 mm 66.5 in

Range score

671 km

417 mi

680 km

423 mi

CO2 score

299 g/km

Trunk score

540 L

19.1 cu ft

570 L

20.1 cu ft

Power-to-weight score

212 hp/t

158 kW/t

4.7 kg/hp

186 hp/t

139 kW/t

5.4 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Porsche Cayenne (955) Facelift 2007 Turbo 4.8 V8	BMW X6 (E71) 50i
Consumption	14.9 L/100 km15.8 mpg US19 mpg UK	12.5 L/100 km18.8 mpg US22.6 mpg UK
Cost / 100 km	26.08 LC100 km	21.88 LC100 km
Cost / 100 mi	41.96 LC100 mi	35.20 LC100 mi
Annual fuel used	2,235 L590 US gal492 UK gal	1,875 L495 US gal412 UK gal
Annual fuel cost	3,911 LC/year	3,281 LC/year