The Comparative Analysis :
Porsche Cayenne Turbo Tiptronic S (14 - 17) vs. Mercedes ML 420 CDI 4MATIC 7G-TRONIC (08 - 11)
€ 132,800

€ 72,100

€ 132,800
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 considerably. The Porsche Cayenne Turbo is 2.6 inches longer, 1.1 inches wider and 4.4 inches lower than the Mercedes ML 420 CDI.
Porsche Cayenne Turbo
Mercedes ML 420 CDI
67
76.3
85.2
71.5
75.2
83.7
76.3 in
Width
75.2 in
85.2 in
Width Incl. Mirrors
83.7 in
67 in
Height
71.5 in
114
191.1
114.8
188.5
191.1 in
Length
188.5 in
114 in
Wheelbase
114.8 in
Vehicle Weight
Porsche Cayenne Turbo
Mercedes ML 420 CDI
4982 lb
Curb Weight
5104 lb
6382 lb
Gross Vehicle
Weight
Weight
6504 lb

Weight Difference:
121 lb
2.37 %

General
Porsche Cayenne Turbo
Mercedes ML 420 CDI
92A/958
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)

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
Porsche Cayenne Turbo
Mercedes ML 420 CDI
V8 gasoline engine with two turbochargers (biturbo)
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
513 hp
at 6000 rpm
Power
302 hp
at 3600 rpm
Porsche Cayenne Turbo
513 hp
302 hp
Mercedes ML 420 CDI
553 lb‑ft
at 2250 rpm
Max. Torque
516 lb‑ft
at 2000 rpm
Porsche Cayenne Turbo
553 lb‑ft
516 lb‑ft
Mercedes ML 420 CDI
Performance
Porsche Cayenne Turbo
Mercedes ML 420 CDI
173 mph
Maximum Speed
146 mph
4.5 sec
Acceleration 0 to 62 mph
6.8 sec
62 mph
62
mph
mph
207 ft
0.000 sec

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

Mercedes ML 420 CDI
▶ REPLAY
9.71 lb/hp
Weight-to-Power Ratio
16.9 lb/hp
Porsche Cayenne Turbo
9.71 lb/hp
16.9 lb/hp
Mercedes ML 420 CDI
Fuel Economy / Emissions
Porsche Cayenne Turbo
Mercedes ML 420 CDI
Fuel Economy
21 mpg
combined
22 mpg
Porsche Cayenne Turbo
21 mpg
22 mpg
Mercedes ML 420 CDI
15 mpg
city
17 mpg
27 mpg
highway
28 mpg
26.4 gal
Fuel Tank Capacity
25.1 gal
555 mi
Range
557 mi
Porsche Cayenne Turbo
555 mi
557 mi
Mercedes ML 420 CDI
Environmental Impact
212.1 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 Turbo
212.1 kWh
218.1 kWh
Mercedes ML 420 CDI
Euro 6b (NEFZ)
Emission Standard
Euro 4 III
420 g/mi (NEFZ)
CO2 Emissions
449 g/mi (NEFZ)
Practical Convenience
Porsche Cayenne Turbo
Mercedes ML 420 CDI
5
Doors
5
5
No. of Seats
5
1400 lb
Maximum Payload
1400 lb
19 cu ft
Trunk Volume
14.2 cu ft










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