The Comparative Analysis :
Mercedes S 420 CDI 7G-TRONIC (06 - 09) vs. BMW 730d Automatic (08 - 12)
€ 91,100
€ 74,400
€ 91,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 74,400
ⓘ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. The Mercedes S 420 CDI is just 0.3 inches longer, 1.2 inches narrower and 0.2 inches lower than the BMW 730d.
Mercedes S 420 CDI
BMW 730d
58
73.7
83.5
58.2
74.9
84
73.7 in
Width
74.9 in
83.5 in
Width Incl. Mirrors
84 in
58 in
Height
58.2 in
119.5
200
120.9
199.7
200 in
Length
199.7 in
119.5 in
Wheelbase
120.9 in
Vehicle Weight
Mercedes S 420 CDI
BMW 730d
4608 lb
Curb Weight
4277 lb
5820 lb
Gross Vehicle
Weight
Weight
5523 lb
Weight Difference:
331 lb
7.18 %
General
Mercedes S 420 CDI
BMW 730d
W221
Generation
F01
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
Mercedes S 420 CDI
BMW 730d
V8 diesel engine with turbocharger
Engine Type
Straight-six diesel engine with turbocharger
Mercedes-Benz OM 629
Engine Series
BMW N57
OM 629.911
Engine Code
N57-D30
4
Valves
4
8
Cylinders
6
4 L / 196 cu in
Displacement
3 L / 147 cu in
316 hp
at 3600 rpm
Power
242 hp
at 4000 rpm
Mercedes S 420 CDI
316 hp
242 hp
BMW 730d
538 lb‑ft
at 2200 rpm
Max. Torque
398 lb‑ft
at 1750 rpm
Mercedes S 420 CDI
538 lb‑ft
398 lb‑ft
BMW 730d
Performance
Mercedes S 420 CDI
BMW 730d
155 mph
Maximum Speed
152 mph
6 sec
Acceleration 0 to 62 mph
7.2 sec
62 mph
62
mph
mph
272 ft
0.000 sec
Mercedes S 420 CDI
62 mph
62
mph
mph
328 ft
0.000 sec
BMW 730d
▶ REPLAY
14.58 lb/hp
Weight-to-Power Ratio
17.67 lb/hp
Mercedes S 420 CDI
14.58 lb/hp
17.67 lb/hp
BMW 730d
Fuel Economy / Emissions
Mercedes S 420 CDI
BMW 730d
Fuel Economy
25 mpg
combined
35 mpg
Mercedes S 420 CDI
25 mpg
35 mpg
BMW 730d
18 mpg
city
26 mpg
33 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
21.1 gal
595 mi
Range
731 mi
Mercedes S 420 CDI
595 mi
731 mi
BMW 730d
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).
139.9 kWh
Mercedes S 420 CDI
193.4 kWh
139.9 kWh
BMW 730d
Euro 4 III
Emission Standard
Euro 5
398 g/mi (NEFZ)
CO2 Emissions
286 g/mi (NEFZ)
Practical Convenience
Mercedes S 420 CDI
BMW 730d
4
Doors
4
5
No. of Seats
5
1213 lb
Maximum Payload
1246 lb
15.9 cu ft
Trunk Volume
14.2 cu ft
No data
Cargo Volume (Seats Down)
No data
