The Comparative Analysis :
Bentley Bentayga Speed (19 - ..) vs. Mercedes GL 420 CDI 4MATIC 7G-TRONIC (06 - 09)
€ 234,500

€ 85,400

€ 234,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 85,400
ⓘ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 Bentley Bentayga Speed is 1.8 inches longer, 3.1 inches wider and 3.9 inches lower than the Mercedes GL 420 CDI.
Bentley Bentayga Speed
Mercedes GL 420 CDI
68.6
78.7
87.6
72.4
75.6
83.9
78.7 in
Width
75.6 in
87.6 in
Width Incl. Mirrors
83.9 in
68.6 in
Height
72.4 in
117.8
202.4
121.1
200.6
202.4 in
Length
200.6 in
117.8 in
Wheelbase
121.1 in
Vehicle Weight
Bentley Bentayga Speed
Mercedes GL 420 CDI
5492 lb
Curb Weight
5622 lb
7165 lb
Gross Vehicle
Weight
Weight
7165 lb

Weight Difference:
130 lb
2.31 %

General
Bentley Bentayga Speed
Mercedes GL 420 CDI
Bentayga
Generation
X164
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
Bentley Bentayga Speed
Mercedes GL 420 CDI
V12 gasoline engine with two turbochargers (biturbo)
Engine Type
V8 diesel engine with turbocharger
VW W12
Engine Series
Mercedes-Benz OM 629
DCU
Engine Code
OM 629.912

4
Valves
4
12
Cylinders
8
6 L / 294 cu in
Displacement
4 L / 196 cu in
626 hp
at 5000 rpm
Power
302 hp
at 3600 rpm
Bentley Bentayga Speed
626 hp
302 hp
Mercedes GL 420 CDI
664 lb‑ft
at 1500 rpm
Max. Torque
516 lb‑ft
at 2200 rpm
Bentley Bentayga Speed
664 lb‑ft
516 lb‑ft
Mercedes GL 420 CDI
Performance
Bentley Bentayga Speed
Mercedes GL 420 CDI
190 mph
Maximum Speed
143 mph
3.9 sec
Acceleration 0 to 62 mph
7.6 sec
62 mph
62
mph
mph
177 ft
0.000 sec

Bentley Bentayga Speed
62 mph
62
mph
mph
348 ft
0.000 sec

Mercedes GL 420 CDI
▶ REPLAY
8.77 lb/hp
Weight-to-Power Ratio
18.62 lb/hp
Bentley Bentayga Speed
8.77 lb/hp
18.62 lb/hp
Mercedes GL 420 CDI
Fuel Economy / Emissions
Bentley Bentayga Speed
Mercedes GL 420 CDI
Fuel Economy
No data
combined
20 mpg
Bentley Bentayga Speed
mpg
20 mpg
Mercedes GL 420 CDI
No data
city
15 mpg
No data
highway
26 mpg
22.5 gal
Fuel Tank Capacity
26.4 gal
No data
Range
536 mi
Bentley Bentayga Speed
mi
536 mi
Mercedes GL 420 CDI
Environmental Impact
No data
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).
238.7 kWh
Bentley Bentayga Speed
0 kWh
238.7 kWh
Mercedes GL 420 CDI
Euro 6
Emission Standard
Euro 4 III
496 g/mi (NEFZ)
CO2 Emissions
494 g/mi (NEFZ)
Practical Convenience
Bentley Bentayga Speed
Mercedes GL 420 CDI
5
Doors
5
5
No. of Seats
5
1673 lb
Maximum Payload
1543 lb
13.7 cu ft
Trunk Volume
17.6 cu ft












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