The Comparative Analysis :
Mercedes S 420 CDI 7G-TRONIC (06 - 09) vs. Mercedes S 450 long 4MATIC 7G-TRONIC Sport (09 - 10)
€ 91,100

€ 97,500

€ 91,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 97,500
ⓘ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 420 CDI is 5.7 inches shorter and 0.5 inches lower.
S 420 CDI
S 450 long
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
124.6
205.7
200 in
Length
205.7 in
119.5 in
Wheelbase
124.6 in
Vehicle Weight
S 420 CDI
S 450 long
4608 lb
Curb Weight
4575 lb
5820 lb
Gross Vehicle
Weight
Weight
5864 lb

Weight Difference:
33 lb
0.72 %

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

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

7-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
S 420 CDI
S 450 long
V8 diesel engine with turbocharger
Engine Type
V8 gasoline engine (naturally aspirated engine)
Mercedes-Benz OM 629
Engine Series
Mercedes-Benz M 273
OM 629.911
Engine Code
M 273.924


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

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

S 450 long
▶ REPLAY
14.58 lb/hp
Weight-to-Power Ratio
13.66 lb/hp
S 420 CDI
14.58 lb/hp
13.66 lb/hp
S 450 long
Fuel Economy / Emissions
S 420 CDI
S 450 long
Fuel Economy
25 mpg
combined
21 mpg
S 420 CDI
25 mpg
21 mpg
S 450 long
18 mpg
city
14 mpg
33 mpg
highway
30 mpg
23.8 gal
Fuel Tank Capacity
23.8 gal
595 mi
Range
508 mi
S 420 CDI
595 mi
508 mi
S 450 long
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).
208.4 kWh
S 420 CDI
193.4 kWh
208.4 kWh
S 450 long
Euro 4 III
Emission Standard
Euro 5
398 g/mi (NEFZ)
CO2 Emissions
412 g/mi (NEFZ)
Practical Convenience
S 420 CDI
S 450 long
4
Doors
4
5
No. of Seats
5
1213 lb
Maximum Payload
1290 lb
15.9 cu ft
Trunk Volume
15.9 cu ft












No data
Cargo Volume (Seats Down)
No data