The Comparative Analysis :
Mercedes GL 420 CDI 4MATIC 7G-TRONIC (06 - 09) vs. Mercedes GL 320 CDI 4MATIC 7G-TRONIC (06 - 09)
€ 85,400

€ 69,300

€ 85,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 69,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of the GL 420 CDI and the GL 320 CDI are absolutely identical. Both are 200.6 inches long, 75.6 inches wide and 72.4 inches tall.
GL 420 CDI
GL 320 CDI
72.4
75.6
83.9
72.4
75.6
83.9
75.6 in
Width
75.6 in
83.9 in
Width Incl. Mirrors
83.9 in
72.4 in
Height
72.4 in
121.1
200.6
121.1
200.6
200.6 in
Length
200.6 in
121.1 in
Wheelbase
121.1 in
Vehicle Weight
GL 420 CDI
GL 320 CDI
5622 lb
Curb Weight
5401 lb
7165 lb
Gross Vehicle
Weight
Weight
6945 lb

Weight Difference:
220 lb
3.91 %

General
GL 420 CDI
GL 320 CDI
X164
Generation
X164
Sport Utility Vehicle
Car Body Style
Sport Utility Vehicle
Diesel
Fuel Type
Diesel

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

7-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
GL 420 CDI
GL 320 CDI
V8 diesel engine with turbocharger
Engine Type
V6 diesel engine with turbocharger
Mercedes-Benz OM 629
Engine Series
Mercedes-Benz OM 642
OM 629.912
Engine Code
OM 642.940


4
Valves
4
8
Cylinders
6
4 L / 196 cu in
Displacement
3 L / 147 cu in
302 hp
at 3600 rpm
Power
221 hp
at 3800 rpm
GL 420 CDI
302 hp
221 hp
GL 320 CDI
516 lb‑ft
at 2200 rpm
Max. Torque
376 lb‑ft
at 1600 rpm
GL 420 CDI
516 lb‑ft
376 lb‑ft
GL 320 CDI
Performance
GL 420 CDI
GL 320 CDI
143 mph
Maximum Speed
130 mph
7.6 sec
Acceleration 0 to 62 mph
9.5 sec
62 mph
62
mph
mph
348 ft
0.000 sec

GL 420 CDI
62 mph
62
mph
mph
433 ft
0.000 sec

GL 320 CDI
▶ REPLAY
18.62 lb/hp
Weight-to-Power Ratio
24.44 lb/hp
GL 420 CDI
18.62 lb/hp
24.44 lb/hp
GL 320 CDI
Fuel Economy / Emissions
GL 420 CDI
GL 320 CDI
Fuel Economy
20 mpg
combined
24 mpg
GL 420 CDI
20 mpg
24 mpg
GL 320 CDI
15 mpg
city
19 mpg
26 mpg
highway
29 mpg
26.4 gal
Fuel Tank Capacity
26.4 gal
536 mi
Range
634 mi
GL 420 CDI
536 mi
634 mi
GL 320 CDI
Environmental Impact
238.7 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).
201.7 kWh
GL 420 CDI
238.7 kWh
201.7 kWh
GL 320 CDI
Euro 4 III
Emission Standard
Euro 4 III
494 g/mi (NEFZ)
CO2 Emissions
420 g/mi (NEFZ)
Practical Convenience
GL 420 CDI
GL 320 CDI
5
Doors
5
5
No. of Seats
5
1543 lb
Maximum Payload
1543 lb
17.6 cu ft
Trunk Volume
17.6 cu ft














65.1 cu ft
Cargo Volume (Seats Down)
65.1 cu ft