The Comparative Analysis :
Mercedes ML 420 CDI DPF 4MATIC 7G-TRONIC (06 - 08) vs. Porsche Cayenne Tiptronic S (17 - ..)
€ 70,400

€ 74,800

€ 70,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 74,800
ⓘ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 Mercedes ML 420 CDI DPF is 5.1 inches shorter, 2.8 inches narrower and 4.7 inches taller than the Porsche Cayenne.
Mercedes ML 420 CDI DPF
Porsche Cayenne
71.5
75.2
83.7
66.8
78.1
86.4
75.2 in
Width
78.1 in
83.7 in
Width Incl. Mirrors
86.4 in
71.5 in
Height
66.8 in
114.8
188.5
114
193.6
188.5 in
Length
193.6 in
114.8 in
Wheelbase
114 in
Vehicle Weight
Mercedes ML 420 CDI DPF
Porsche Cayenne
5104 lb
Curb Weight
4542 lb
6504 lb
Gross Vehicle
Weight
Weight
6239 lb

Weight Difference:
562 lb
11.01 %

General
Mercedes ML 420 CDI DPF
Porsche Cayenne
W164
Generation
9YA
Sport Utility Vehicle
Car Body Style
Sport Utility Vehicle
Diesel
Fuel Type
Mid-Grade Unleaded

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

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes ML 420 CDI DPF
Porsche Cayenne
V8 diesel engine with turbocharger
Engine Type
V6 gasoline engine with turbocharger
Mercedes-Benz OM 629
Engine Series
OM 629.912
Engine Code

4
Valves
4
8
Cylinders
6
4 L / 196 cu in
Displacement
3 L / 147 cu in
302 hp
at 3600 rpm
Power
335 hp
at 5300 rpm
Mercedes ML 420 CDI DPF
302 hp
335 hp
Porsche Cayenne
516 lb‑ft
at 2000 rpm
Max. Torque
332 lb‑ft
at 1340 rpm
Mercedes ML 420 CDI DPF
516 lb‑ft
332 lb‑ft
Porsche Cayenne
Performance
Mercedes ML 420 CDI DPF
Porsche Cayenne
146 mph
Maximum Speed
152 mph
6.8 sec
Acceleration 0 to 62 mph
6.2 sec
62 mph
62
mph
mph
308 ft
0.000 sec

Mercedes ML 420 CDI DPF
62 mph
62
mph
mph
282 ft
0.000 sec

Porsche Cayenne
▶ REPLAY
16.9 lb/hp
Weight-to-Power Ratio
13.56 lb/hp
Mercedes ML 420 CDI DPF
16.9 lb/hp
13.56 lb/hp
Porsche Cayenne
Fuel Economy / Emissions
Mercedes ML 420 CDI DPF
Porsche Cayenne
Fuel Economy
21 mpg
combined
26 mpg
Mercedes ML 420 CDI DPF
21 mpg
26 mpg
Porsche Cayenne
16 mpg
city
21 mpg
26 mpg
highway
30 mpg
25.1 gal
Fuel Tank Capacity
19.8 gal
532 mi
Range
506 mi
Mercedes ML 420 CDI DPF
532 mi
506 mi
Porsche Cayenne
Environmental Impact
228.4 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).
174.3 kWh
Mercedes ML 420 CDI DPF
228.4 kWh
174.3 kWh
Porsche Cayenne
Euro 4 III
Emission Standard
Euro 6
473 g/mi (NEFZ)
CO2 Emissions
426 g/mi (WLTP)
Practical Convenience
Mercedes ML 420 CDI DPF
Porsche Cayenne
5
Doors
5
5
No. of Seats
5
1400 lb
Maximum Payload
1698 lb
14.2 cu ft
Trunk Volume
21.8 cu ft











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