The Comparative Analysis :
Mercedes S 450 long 7G-TRONIC Sport (09 - 10) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)
€ 93,700

€ 91,100

€ 93,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,100
ⓘ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. Both cars are the same width, but the S 450 long is 5.7 inches longer and 0.5 inches taller.
S 450 long
S 420 CDI
58.5
73.7
83.5
58
73.7
83.5
73.7 in
Width
73.7 in
83.5 in
Width Incl. Mirrors
83.5 in
58.5 in
Height
58 in
124.6
205.7
119.5
200
205.7 in
Length
200 in
124.6 in
Wheelbase
119.5 in
Vehicle Weight
S 450 long
S 420 CDI
4442 lb
Curb Weight
4608 lb
5721 lb
Gross Vehicle
Weight
Weight
5820 lb

Weight Difference:
165 lb
3.58 %

General
S 450 long
S 420 CDI
W221
Generation
W221
Sedan
Car Body Style
Sedan
Mid-Grade Unleaded
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
S 450 long
S 420 CDI
V8 gasoline engine (naturally aspirated engine)
Engine Type
V8 diesel engine with turbocharger
Mercedes-Benz M 273
Engine Series
Mercedes-Benz OM 629
M 273.922
Engine Code
OM 629.911


4
Valves
4
8
Cylinders
8
4.7 L / 230 cu in
Displacement
4 L / 196 cu in
335 hp
at 6000 rpm
Power
316 hp
at 3600 rpm
S 450 long
335 hp
316 hp
S 420 CDI
339 lb‑ft
at 2700 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
S 450 long
339 lb‑ft
538 lb‑ft
S 420 CDI
Performance
S 450 long
S 420 CDI
155 mph
Maximum Speed
155 mph
5.9 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
269 ft
0.000 sec

S 450 long
62 mph
62
mph
mph
272 ft
0.000 sec

S 420 CDI
▶ REPLAY
13.26 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
S 450 long
13.26 lb/hp
14.58 lb/hp
S 420 CDI
Fuel Economy / Emissions
S 450 long
S 420 CDI
Fuel Economy
22 mpg
combined
25 mpg
S 450 long
22 mpg
25 mpg
S 420 CDI
15 mpg
city
18 mpg
30 mpg
highway
33 mpg
23.8 gal
Fuel Tank Capacity
23.8 gal
523 mi
Range
595 mi
S 450 long
523 mi
595 mi
S 420 CDI
Environmental Impact
202.8 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).
193.4 kWh
S 450 long
202.8 kWh
193.4 kWh
S 420 CDI
Euro 5
Emission Standard
Euro 4 III
404 g/mi (NEFZ)
CO2 Emissions
398 g/mi (NEFZ)
Practical Convenience
S 450 long
S 420 CDI
4
Doors
4
5
No. of Seats
5
1279 lb
Maximum Payload
1213 lb
15.9 cu ft
Trunk Volume
15.9 cu ft












No data
Cargo Volume (Seats Down)
No data