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