The Comparative Analysis :
Mercedes S 420 CDI 7G-TRONIC (06 - 09) vs. Mercedes S 450 CDI 7G-TRONIC (09 - 10)
€ 91,100

€ 92,700

€ 91,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 92,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
Тhere is barely any difference in dimensions between the two vehicles. Both cars are the same width, but the S 420 CDI is 0.6 inches shorter and 0.5 inches lower.
S 420 CDI
S 450 CDI
58
73.7
83.5
58.5
73.7
83.5
73.7 in
Width
73.7 in
83.5 in
Width Incl. Mirrors
83.5 in
58 in
Height
58.5 in
119.5
200
119.5
200.6
200 in
Length
200.6 in
119.5 in
Wheelbase
119.5 in
Vehicle Weight
S 420 CDI
S 450 CDI
4608 lb
Curb Weight
4608 lb
5820 lb
Gross Vehicle
Weight
Weight
5930 lb

Weight Difference:
0 lb
0 %

General
S 420 CDI
S 450 CDI
W221
Generation
W221
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
S 420 CDI
S 450 CDI
V8 diesel engine with turbocharger
Engine Type
V8 diesel engine with turbocharger
Mercedes-Benz OM 629
Engine Series
Mercedes-Benz OM 629
OM 629.911
Engine Code
OM 629.911


4
Valves
4
8
Cylinders
8
4 L / 196 cu in
Displacement
4 L / 196 cu in
316 hp
at 3600 rpm
Power
316 hp
at 3600 rpm
S 420 CDI
316 hp
316 hp
S 450 CDI
538 lb‑ft
at 2200 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
S 420 CDI
538 lb‑ft
538 lb‑ft
S 450 CDI
Performance
S 420 CDI
S 450 CDI
155 mph
Maximum Speed
155 mph
6 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph
62
mph
mph
272 ft
0.000 sec

S 420 CDI
62 mph
62
mph
mph
302 ft
0.000 sec

S 450 CDI
▶ REPLAY
14.58 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
S 420 CDI
14.58 lb/hp
14.58 lb/hp
S 450 CDI
Fuel Economy / Emissions
S 420 CDI
S 450 CDI
Fuel Economy
25 mpg
combined
26 mpg
S 420 CDI
25 mpg
26 mpg
S 450 CDI
18 mpg
city
18 mpg
33 mpg
highway
34 mpg
23.8 gal
Fuel Tank Capacity
23.8 gal
595 mi
Range
615 mi
S 420 CDI
595 mi
615 mi
S 450 CDI
Environmental Impact
193.4 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).
187.2 kWh
S 420 CDI
193.4 kWh
187.2 kWh
S 450 CDI
Euro 4 III
Emission Standard
Euro 4 III
398 g/mi (NEFZ)
CO2 Emissions
386 g/mi (NEFZ)
Practical Convenience
S 420 CDI
S 450 CDI
4
Doors
4
5
No. of Seats
5
1213 lb
Maximum Payload
1323 lb
15.9 cu ft
Trunk Volume
15.9 cu ft












No data
Cargo Volume (Seats Down)
No data