The Comparative Analysis :
Mercedes ML 420 CDI DPF 4MATIC 7G-TRONIC (06 - 08) vs. Porsche Cayenne S Hybrid Tiptronic S (10 - 14)
€ 70,400

€ 83,000

€ 70,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 83,000
ⓘ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 Mercedes ML 420 CDI DPF is 2.3 inches shorter, 1.1 inches narrower and 4.3 inches taller than the Porsche Cayenne S Hybrid.
Mercedes ML 420 CDI DPF
Porsche Cayenne S Hybrid
71.5
75.2
83.7
67.1
76.3
84.1
75.2 in
Width
76.3 in
83.7 in
Width Incl. Mirrors
84.1 in
71.5 in
Height
67.1 in
114.8
188.5
114
190.8
188.5 in
Length
190.8 in
114.8 in
Wheelbase
114 in
Vehicle Weight
Mercedes ML 420 CDI DPF
Porsche Cayenne S Hybrid
5104 lb
Curb Weight
5104 lb
6504 lb
Gross Vehicle
Weight
Weight
6415 lb

Weight Difference:
0 lb
0 %

General
Mercedes ML 420 CDI DPF
Porsche Cayenne S Hybrid
W164
Generation
92A/958
Sport Utility Vehicle
Car Body Style
Sport Utility Vehicle
Diesel
Fuel Type
Premium 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 S Hybrid
V8 diesel engine with turbocharger
Engine Type
6-cylinder full hybrid gasoline engine with compressor
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
375 hp
at 5500 rpm
Mercedes ML 420 CDI DPF
302 hp
375 hp
Porsche Cayenne S Hybrid
516 lb‑ft
at 2000 rpm
Max. Torque
428 lb‑ft
at 1000 rpm
Mercedes ML 420 CDI DPF
516 lb‑ft
428 lb‑ft
Porsche Cayenne S Hybrid
Performance
Mercedes ML 420 CDI DPF
Porsche Cayenne S Hybrid
146 mph
Maximum Speed
150 mph
6.8 sec
Acceleration 0 to 62 mph
6.5 sec
62 mph
62
mph
mph
308 ft
0.000 sec

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

Porsche Cayenne S Hybrid
▶ REPLAY
16.9 lb/hp
Weight-to-Power Ratio
13.61 lb/hp
Mercedes ML 420 CDI DPF
16.9 lb/hp
13.61 lb/hp
Porsche Cayenne S Hybrid
Fuel Economy / Emissions
Mercedes ML 420 CDI DPF
Porsche Cayenne S Hybrid
Fuel Economy
21 mpg
combined
29 mpg
Mercedes ML 420 CDI DPF
21 mpg
29 mpg
Porsche Cayenne S Hybrid
16 mpg
city
27 mpg
26 mpg
highway
30 mpg
25.1 gal
Fuel Tank Capacity
22.5 gal
532 mi
Range
644 mi
Mercedes ML 420 CDI DPF
532 mi
644 mi
Porsche Cayenne S Hybrid
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).
155.3 kWh
Mercedes ML 420 CDI DPF
228.4 kWh
155.3 kWh
Porsche Cayenne S Hybrid
Euro 4 III
Emission Standard
Euro 5
473 g/mi (NEFZ)
CO2 Emissions
311 g/mi (NEFZ)
Practical Convenience
Mercedes ML 420 CDI DPF
Porsche Cayenne S Hybrid
5
Doors
5
5
No. of Seats
5
1400 lb
Maximum Payload
1312 lb
14.2 cu ft
Trunk Volume
16.4 cu ft










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