The Comparative Analysis :
Porsche Cayenne GTS Tiptronic (08 - 10) vs. Mercedes ML 420 CDI 4MATIC 7G-TRONIC (08 - 11)
€ 81,400

€ 72,100

€ 81,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 72,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The Porsche Cayenne GTS is 0.3 inches longer, 1.8 inches wider and 5.5 inches lower than the Mercedes ML 420 CDI.
Porsche Cayenne GTS
Mercedes ML 420 CDI
65.9
77
86.6
71.5
75.2
83.7
77 in
Width
75.2 in
86.6 in
Width Incl. Mirrors
83.7 in
65.9 in
Height
71.5 in
112.4
188.8
114.8
188.5
188.8 in
Length
188.5 in
112.4 in
Wheelbase
114.8 in
Vehicle Weight
Porsche Cayenne GTS
Mercedes ML 420 CDI
5115 lb
Curb Weight
5104 lb
6790 lb
Gross Vehicle
Weight
Weight
6504 lb

Weight Difference:
11 lb
0.22 %

General
Porsche Cayenne GTS
Mercedes ML 420 CDI
9PA/955
Generation
W164
Sport Utility Vehicle
Car Body Style
Sport Utility Vehicle
Premium Unleaded
Fuel Type
Diesel

Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)

6-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
Porsche Cayenne GTS
Mercedes ML 420 CDI
V8 gasoline engine (naturally aspirated engine)
Engine Type
V8 diesel engine with turbocharger
Engine Series
Mercedes-Benz OM 629
Engine Code
OM 629.912

4
Valves
4
8
Cylinders
8
4.8 L / 235 cu in
Displacement
4 L / 196 cu in
399 hp
at 6500 rpm
Power
302 hp
at 3600 rpm
Porsche Cayenne GTS
399 hp
302 hp
Mercedes ML 420 CDI
369 lb‑ft
at 3500 rpm
Max. Torque
516 lb‑ft
at 2000 rpm
Porsche Cayenne GTS
369 lb‑ft
516 lb‑ft
Mercedes ML 420 CDI
Performance
Porsche Cayenne GTS
Mercedes ML 420 CDI
156 mph
Maximum Speed
146 mph
6.5 sec
Acceleration 0 to 62 mph
6.8 sec
62 mph
62
mph
mph
295 ft
0.000 sec

Porsche Cayenne GTS
62 mph
62
mph
mph
308 ft
0.000 sec

Mercedes ML 420 CDI
▶ REPLAY
12.82 lb/hp
Weight-to-Power Ratio
16.9 lb/hp
Porsche Cayenne GTS
12.82 lb/hp
16.9 lb/hp
Mercedes ML 420 CDI
Fuel Economy / Emissions
Porsche Cayenne GTS
Mercedes ML 420 CDI
Fuel Economy
17 mpg
combined
22 mpg
Porsche Cayenne GTS
17 mpg
22 mpg
Mercedes ML 420 CDI
11 mpg
city
17 mpg
23 mpg
highway
28 mpg
26.4 gal
Fuel Tank Capacity
25.1 gal
447 mi
Range
557 mi
Porsche Cayenne GTS
447 mi
557 mi
Mercedes ML 420 CDI
Environmental Impact
263.3 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
218.1 kWh
Porsche Cayenne GTS
263.3 kWh
218.1 kWh
Mercedes ML 420 CDI
Euro 4 III
Emission Standard
Euro 4 III
534 g/mi (NEFZ)
CO2 Emissions
449 g/mi (NEFZ)
Practical Convenience
Porsche Cayenne GTS
Mercedes ML 420 CDI
5
Doors
5
5
No. of Seats
5
1676 lb
Maximum Payload
1400 lb
15.3 cu ft
Trunk Volume
14.2 cu ft









50.1 cu ft
Cargo Volume (Seats Down)
58 cu ft