Car comparison

Bentley Bentayga 4.0 diesel V8vsPorsche Cayenne III S 2.9 V6

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

New comparison

Bentley Bentayga

4.0 diesel V8

435 hp3996 ccDieselAWDAutomaticTwin-turboSUV2017-2020

Porsche Cayenne III

S 2.9 V6

440 hp2894 ccGasolineAWDAutomaticTwin-turboSUV2017-2023

Comparison overview

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

Bentley Bentayga 4.0 diesel V8

Quickest 0-100 km/h
4.8 s
Fastest top speed
270 km/h
168 mph
Highest torque
900 Nm
664 lb-ft
Lowest combined fuel consumption
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
Lowest city consumption
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Lowest highway consumption
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
Lowest CO2 emissions
210 g/km
Best estimated range
1,076 km
669 mi
Best performance score
77/100
Best economy score
86/100

Porsche Cayenne III S 2.9 V6

Most powerful
440 hp
328 kW
Lightest
2,020 kg
4,453 lb
Best power-to-weight
218 hp/t
162 kW/t
4.6 kg/hp
Largest trunk
770 L
Best overall score
80/100
Best practicality score
92/100

Specification comparison

Specification comparison
Model	BentleyBentayga4.0 diesel V8	PorscheCayenne IIIS 2.9 V6
Power	435hp324kW	440hp328kW
Torque	900Nm664lb-ft	550Nm406lb-ft
Curb weight	2,544kg5,609lb	2,020kg4,453lb
Gross weight	3,250kg7,165lb	2,840kg6,261lb
Top speed	270 km/h 168 mph	265 km/h 165 mph
To 99% top speed	76.6s99% target: 267 km/h / 166 mph Calculated	68.5s99% target: 262 km/h / 163 mph Calculated
0-100 km/h	4.8s	5.2s
0-200 km/h	17.5s Calculated	17.8s Calculated
0-60 mph	4.6s Calculated	4.9s Calculated
Fuel consumption	7.9L/100 km29.8mpg US35.8mpg UK	9.4L/100 km25mpg US30.1mpg UK
Fuel consumption city	9L/100 km26.1mpg US31.4mpg UK	11.8L/100 km19.9mpg US23.9mpg UK
Fuel consumption highway	7.4L/100 km31.8mpg US38.2mpg UK	8.4L/100 km28mpg US33.6mpg UK
Quarter mile	13.0s Calculated	13.3s Calculated
Power-to-weight	171hp/t128kW/t78hp/1000 lb Calculated	218hp/t162kW/t99hp/1000 lb Calculated
Torque-to-weight	354Nm/t237lb-ft/ton Calculated	272Nm/t182lb-ft/ton Calculated
Estimated range	1,076km669mi Calculated	798km496mi Calculated
Displacement	3,996cc244cu in	2,894cc177cu in
Length	5,140mm202in	4,918mm194in
Width	1,998mm79in	1,983mm78in
Height	1,722mm68in	1,696mm67in
Wheelbase	2,995mm118in	2,895mm114in
Trunk volume	215L	770L
Max trunk volume	-	1,710L
Doors	5	5
Seats	7	5
Fuel tank	85L	75L
CO2 emissions	210g/km	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.

Bentley Bentayga 4.0 diesel V8Porsche Cayenne III S 2.9 V6PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BentleyBentayga4.0 diesel V8	3,750-5,000 rpm	1,000-3,250 rpm	5,250 rpm
PorscheCayenne IIIS 2.9 V6	5,700-6,600 rpm	1,800-5,500 rpm	6,850 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BentleyBentayga4.0 diesel V8	PorscheCayenne IIIS 2.9 V6
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.6 s	4.9 s
0-100 km/h 0-62 mph	4.8 s	5.2 s
0-200 km/h 0-124 mph	17.5 s	17.8 s
Top speed	270 km/h 168 mph	265 km/h 165 mph
	Drag race simulation
60 ft 18 m	2.1 s	2.2 s
330 ft 101 m	5.6 s	5.8 s
1/8 mile 201 m	8.4 s	8.7 s
1000 ft 305 m	10.9 s	11.2 s
1/4 mile 402 m	13.0 s	13.3 s
Trap speed 1/4 mile 402 m	176 km/h 109 mph	175 km/h 109 mph

Power comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	435 hp 324 kW
PorscheCayenne IIIS 2.9 V6	440 hp 328 kW

Porsche Cayenne III S 2.9 V6 has 5 hp more than Bentley Bentayga 4.0 diesel V8.

The biggest power difference is between Bentley Bentayga 4.0 diesel V8 and Porsche Cayenne III S 2.9 V6: 5 hp (4 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	900 Nm 664 lb-ft
PorscheCayenne IIIS 2.9 V6	550 Nm 406 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	2,544 kg 5,609 lb
PorscheCayenne IIIS 2.9 V6	2,020 kg 4,453 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
BentleyBentayga4.0 diesel V8	270 km/h 168 mph
PorscheCayenne IIIS 2.9 V6	265 km/h 165 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	4.8 s
PorscheCayenne IIIS 2.9 V6	5.2 s

Although Porsche Cayenne III S 2.9 V6 has more power, Bentley Bentayga 4.0 diesel V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Bentley Bentayga 4.0 diesel V8 and Porsche Cayenne III S 2.9 V6: 0.4 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
BentleyBentayga4.0 diesel V8	7.9 L/100 km 29.8 mpg US 35.8 mpg UK
PorscheCayenne IIIS 2.9 V6	9.4 L/100 km 25.0 mpg US 30.1 mpg UK

The biggest fuel consumption difference is between Bentley Bentayga 4.0 diesel V8 and Porsche Cayenne III S 2.9 V6: 1.5 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
BentleyBentayga4.0 diesel V8	171 hp/t 128 kW/t 5.8 kg/hp
PorscheCayenne IIIS 2.9 V6	218 hp/t 162 kW/t 4.6 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	1,076 km 669 mi
PorscheCayenne IIIS 2.9 V6	798 km 496 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BentleyBentayga4.0 diesel V8	435 hp 324 kW	4.8 s	270 km/h 168 mph
PorscheCayenne IIIS 2.9 V6	440 hp 328 kW	5.2 s	265 km/h 165 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

BentleyBentayga4.0 diesel V8

Power	435 hp 324 kW
0-100 km/h	4.8 s
Top speed 270 km/h 168 mph

Doors/seats	5 doors 7 seats
Trunk	215 L 7.6 cu ft
Length	5,140 mm 202.4 in
Height	1,722 mm 67.8 in

PorscheCayenne IIIS 2.9 V6

Power	440 hp 328 kW
0-100 km/h	5.2 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

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

BentleyBentayga4.0 diesel V8

Power	435 hp 324 kW
0-100 km/h	4.8 s
Top speed 270 km/h 168 mph

7.9 L/100 km

29.8 mpg US

35.8 mpg UK

PorscheCayenne IIIS 2.9 V6

Power	440 hp 328 kW
0-100 km/h	5.2 s
Top speed 265 km/h 165 mph

9.4 L/100 km

25.0 mpg US

30.1 mpg UK

Bentley Bentayga 4.0 diesel 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
BentleyBentayga4.0 diesel V8	7.9 L/100 km 29.8 mpg US 35.8 mpg UK	4.8 s
PorscheCayenne IIIS 2.9 V6	9.4 L/100 km 25.0 mpg US 30.1 mpg UK	5.2 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
BentleyBentayga4.0 diesel V8	171 hp/t 128 kW/t 5.8 kg/hp	7.9 L/100 km 29.8 mpg US 35.8 mpg UK
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

Detailed score breakdown

Vehicle

BentleyBentayga4.0 diesel V8

PorscheCayenne IIIS 2.9 V6

Power

435 hp

324 kW

440 hp

328 kW

Torque

900 Nm

664 lb-ft

550 Nm

406 lb-ft

Acceleration

4.8 s

5.2 s

Top speed

270 km/h

168 mph

265 km/h

165 mph

Lightness

2,544 kg

5,609 lb

2,020 kg

4,453 lb

Fuel consumption

7.9 L/100 km

29.8 mpg US

35.8 mpg UK

9.4 L/100 km

25.0 mpg US

30.1 mpg UK

Practicality

Doors/seats	5 doors 7 seats
Trunk	215 L 7.6 cu ft
Length	5,140 mm 202.4 in
Height	1,722 mm 67.8 in

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

Range score

1,076 km

669 mi

798 km

496 mi

CO2 score

210 g/km

213 g/km

Trunk score

215 L

7.6 cu ft

770 L

27.2 cu ft

Power-to-weight score

171 hp/t

128 kW/t

5.8 kg/hp

218 hp/t

162 kW/t

4.6 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	Bentley Bentayga 4.0 diesel V8	Porsche Cayenne III S 2.9 V6
Consumption	7.9 L/100 km29.8 mpg US35.8 mpg UK	9.4 L/100 km25 mpg US30.1 mpg UK
Cost / 100 km	13.83 LC100 km	16.45 LC100 km
Cost / 100 mi	22.25 LC100 mi	26.47 LC100 mi
Annual fuel used	1,185 L313 US gal261 UK gal	1,410 L372 US gal310 UK gal
Annual fuel cost	2,074 LC/year	2,468 LC/year