Car comparison

Porsche Cayenne III GTS 4.0 V8vsMercedes-Benz GLS (X167) GLS 580 V8

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

New comparison

Porsche Cayenne III

GTS 4.0 V8

460 hp3996 ccGasolineAWDAutomaticTwin-turboSUV2020-2023

Mercedes-Benz GLS (X167)

GLS 580 V8

489 hp3982 ccGasolineAWDAutomaticTwin-turboSUV2020-2021

Comparison overview

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

Porsche Cayenne III GTS 4.0 V8

Quickest 0-100 km/h
4.8 s
Fastest top speed
270 km/h
168 mph
Lightest
2,145 kg
4,729 lb
Best power-to-weight
214 hp/t
160 kW/t
4.7 kg/hp
Largest trunk
772 L
Best overall score
82/100
Best performance score
78/100
Best practicality score
92/100

Mercedes-Benz GLS (X167) GLS 580 V8

Most powerful
489 hp
365 kW
Highest torque
700 Nm
516 lb-ft
Lowest combined fuel consumption
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
Lowest city consumption
15.0 L/100 km
15.7 mpg US
18.8 mpg UK
Lowest highway consumption
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Best estimated range
818 km
508 mi
Best economy score
77/100

Specification comparison

Specification comparison
Model	PorscheCayenne IIIGTS 4.0 V8	Mercedes-BenzGLS (X167)GLS 580 V8
Power	460hp343kW	489hp365kW
Torque	620Nm457lb-ft	700Nm516lb-ft
Curb weight	2,145kg4,729lb	2,470kg5,445lb
Gross weight	2,860kg6,305lb	3,250kg7,165lb
Top speed	270 km/h 168 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	80.9s99% target: 267 km/h / 166 mph Calculated	77.4s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	4.8s	5.3s
0-200 km/h	17.9s	19.8s Calculated
0-60 mph	4.6s Calculated	5.0s Calculated
Fuel consumption	11.4L/100 km20.6mpg US24.8mpg UK	11L/100 km21.4mpg US25.7mpg UK
Fuel consumption city	15.3L/100 km15.4mpg US18.5mpg UK	15L/100 km15.7mpg US18.8mpg UK
Fuel consumption highway	9.1L/100 km25.8mpg US31.0mpg UK	8.9L/100 km26.4mpg US31.7mpg UK
Quarter mile	13.0s Calculated	13.5s Calculated
Power-to-weight	214hp/t160kW/t97hp/1000 lb Calculated	198hp/t148kW/t90hp/1000 lb Calculated
Torque-to-weight	289Nm/t193lb-ft/ton Calculated	283Nm/t190lb-ft/ton Calculated
Estimated range	789km491mi Calculated	818km508mi Calculated
Displacement	3,996cc244cu in	3,982cc243cu in
Length	4,929mm194in	5,207mm205in
Width	1,983mm78in	2,030mm80in
Height	1,676mm66in	1,838mm72in
Wheelbase	2,895mm114in	3,135mm123in
Front track	1,682mm66in	1,669mm66in
Rear track	1,665mm66in	1,692mm67in
Ground clearance	-	215mm8in
Trunk volume	772L	355L
Max trunk volume	1,708L	2,400L
Doors	5	5
Seats	5	7
Fuel tank	90L	90L
CO2 emissions	260g/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 GTS 4.0 V8Mercedes-Benz GLS (X167) GLS 580 V8PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
PorscheCayenne IIIGTS 4.0 V8	6,000-6,500 rpm	1,800-4,500 rpm	6,800 rpm
Mercedes-BenzGLS (X167)GLS 580 V8	-	2,000-4,000 rpm	4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	PorscheCayenne IIIGTS 4.0 V8	Mercedes-BenzGLS (X167)GLS 580 V8
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.6 s	5.0 s
0-100 km/h 0-62 mph	4.8 s	5.3 s
0-200 km/h 0-124 mph	17.9 s	19.8 s
Top speed	270 km/h 168 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Limited
	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	8.8 s
1000 ft 305 m	10.9 s	11.3 s
1/4 mile 402 m	13.0 s	13.5 s
Trap speed 1/4 mile 402 m	175 km/h 109 mph	170 km/h 106 mph

Power comparison

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

Chart data table
Vehicle	Value
PorscheCayenne IIIGTS 4.0 V8	460 hp 343 kW
Mercedes-BenzGLS (X167)GLS 580 V8	489 hp 365 kW

Mercedes-Benz GLS (X167) GLS 580 V8 has 29 hp more than Porsche Cayenne III GTS 4.0 V8.

The biggest power difference is between Porsche Cayenne III GTS 4.0 V8 and Mercedes-Benz GLS (X167) GLS 580 V8: 29 hp (22 kW).

Torque comparison

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

Chart data table
Vehicle	Value
PorscheCayenne IIIGTS 4.0 V8	620 Nm 457 lb-ft
Mercedes-BenzGLS (X167)GLS 580 V8	700 Nm 516 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
PorscheCayenne IIIGTS 4.0 V8	2,145 kg 4,729 lb
Mercedes-BenzGLS (X167)GLS 580 V8	2,470 kg 5,445 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 IIIGTS 4.0 V8	270 km/h 168 mph
Mercedes-BenzGLS (X167)GLS 580 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
Vehicle	Value
PorscheCayenne IIIGTS 4.0 V8	4.8 s
Mercedes-BenzGLS (X167)GLS 580 V8	5.3 s

Although Mercedes-Benz GLS (X167) GLS 580 V8 has more power, Porsche Cayenne III GTS 4.0 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche Cayenne III GTS 4.0 V8 and Mercedes-Benz GLS (X167) GLS 580 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
Vehicle	Value
PorscheCayenne IIIGTS 4.0 V8	11.4 L/100 km 20.6 mpg US 24.8 mpg UK
Mercedes-BenzGLS (X167)GLS 580 V8	11.0 L/100 km 21.4 mpg US 25.7 mpg UK

Power-to-weight comparison

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

Chart data table
Vehicle	Value
PorscheCayenne IIIGTS 4.0 V8	214 hp/t 160 kW/t 4.7 kg/hp
Mercedes-BenzGLS (X167)GLS 580 V8	198 hp/t 148 kW/t 5.1 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
PorscheCayenne IIIGTS 4.0 V8	789 km 491 mi
Mercedes-BenzGLS (X167)GLS 580 V8	818 km 508 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
PorscheCayenne IIIGTS 4.0 V8	460 hp 343 kW	4.8 s	270 km/h 168 mph
Mercedes-BenzGLS (X167)GLS 580 V8	489 hp 365 kW	5.3 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.

Vehicle

Performance score

Practicality score

PorscheCayenne IIIGTS 4.0 V8

Power	460 hp 343 kW
0-100 km/h	4.8 s
Top speed 270 km/h 168 mph

Doors/seats	5 doors 5 seats
Trunk	772 L 27.3 cu ft
Length	4,929 mm 194.1 in
Height	1,676 mm 66.0 in

Mercedes-BenzGLS (X167)GLS 580 V8

Power	489 hp 365 kW
0-100 km/h	5.3 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	5 doors 7 seats
Trunk	355 L 12.5 cu ft
Length	5,207 mm 205.0 in
Height	1,838 mm 72.4 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 IIIGTS 4.0 V8

Power	460 hp 343 kW
0-100 km/h	4.8 s
Top speed 270 km/h 168 mph

11.4 L/100 km

20.6 mpg US

24.8 mpg UK

Mercedes-BenzGLS (X167)GLS 580 V8

Power	489 hp 365 kW
0-100 km/h	5.3 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

11.0 L/100 km

21.4 mpg US

25.7 mpg UK

Mercedes-Benz GLS (X167) GLS 580 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 IIIGTS 4.0 V8	11.4 L/100 km 20.6 mpg US 24.8 mpg UK	4.8 s
Mercedes-BenzGLS (X167)GLS 580 V8	11.0 L/100 km 21.4 mpg US 25.7 mpg UK	5.3 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 IIIGTS 4.0 V8	214 hp/t 160 kW/t 4.7 kg/hp	11.4 L/100 km 20.6 mpg US 24.8 mpg UK
Mercedes-BenzGLS (X167)GLS 580 V8	198 hp/t 148 kW/t 5.1 kg/hp	11.0 L/100 km 21.4 mpg US 25.7 mpg UK

Detailed score breakdown

Vehicle

PorscheCayenne IIIGTS 4.0 V8

Mercedes-BenzGLS (X167)GLS 580 V8

Power

460 hp

343 kW

489 hp

365 kW

Torque

620 Nm

457 lb-ft

700 Nm

516 lb-ft

Acceleration

4.8 s

5.3 s

Top speed

270 km/h

168 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

2,145 kg

4,729 lb

2,470 kg

5,445 lb

Fuel consumption

11.4 L/100 km

20.6 mpg US

24.8 mpg UK

11.0 L/100 km

21.4 mpg US

25.7 mpg UK

Practicality

Doors/seats	5 doors 5 seats
Trunk	772 L 27.3 cu ft
Length	4,929 mm 194.1 in
Height	1,676 mm 66.0 in

Doors/seats	5 doors 7 seats
Trunk	355 L 12.5 cu ft
Length	5,207 mm 205.0 in
Height	1,838 mm 72.4 in

Range score

789 km

491 mi

818 km

508 mi

CO2 score

260 g/km

Trunk score

772 L

27.3 cu ft

355 L

12.5 cu ft

Power-to-weight score

214 hp/t

160 kW/t

4.7 kg/hp

198 hp/t

148 kW/t

5.1 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 III GTS 4.0 V8	Mercedes-Benz GLS (X167) GLS 580 V8
Consumption	11.4 L/100 km20.6 mpg US24.8 mpg UK	11 L/100 km21.4 mpg US25.7 mpg UK
Cost / 100 km	19.95 LC100 km	19.25 LC100 km
Cost / 100 mi	32.11 LC100 mi	30.98 LC100 mi
Annual fuel used	1,710 L452 US gal376 UK gal	1,650 L436 US gal363 UK gal
Annual fuel cost	2,993 LC/year	2,888 LC/year