The Comparative Analysis :
BMW 730Ld Steptronic (15 - 19) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)
€ 93,800
€ 91,100
€ 93,800
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 BMW 730Ld is considerably bigger in every dimension. It's 6.2 inches longer, 1.2 inches wider and 0.5 inches taller than the Mercedes S 420 CDI.
BMW 730Ld
Mercedes S 420 CDI
58.5
74.9
85.4
58
73.7
83.5
74.9 in
Width
73.7 in
85.4 in
Width Incl. Mirrors
83.5 in
58.5 in
Height
58 in
126.4
206.2
119.5
200
206.2 in
Length
200 in
126.4 in
Wheelbase
119.5 in
Vehicle Weight
BMW 730Ld
Mercedes S 420 CDI
4178 lb
Curb Weight
4608 lb
5490 lb
Gross Vehicle
Weight
Weight
5820 lb
Weight Difference:
430 lb
9.33 %
General
BMW 730Ld
Mercedes S 420 CDI
G12
Generation
W221
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
BMW 730Ld
Mercedes S 420 CDI
Straight-six diesel engine with turbocharger
Engine Type
V8 diesel engine with turbocharger
BMW B57
Engine Series
Mercedes-Benz OM 629
B57-D30
Engine Code
OM 629.911
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4 L / 196 cu in
261 hp
at 4000 rpm
Power
316 hp
at 3600 rpm
BMW 730Ld
261 hp
316 hp
Mercedes S 420 CDI
457 lb‑ft
at 2000 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
BMW 730Ld
457 lb‑ft
538 lb‑ft
Mercedes S 420 CDI
Performance
BMW 730Ld
Mercedes S 420 CDI
155 mph
Maximum Speed
155 mph
6.2 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
282 ft
0.000 sec
BMW 730Ld
62 mph
62
mph
mph
272 ft
0.000 sec
Mercedes S 420 CDI
▶ REPLAY
16.01 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
BMW 730Ld
16.01 lb/hp
14.58 lb/hp
Mercedes S 420 CDI
Fuel Economy / Emissions
BMW 730Ld
Mercedes S 420 CDI
Fuel Economy
44 mpg
combined
25 mpg
BMW 730Ld
44 mpg
25 mpg
Mercedes S 420 CDI
37 mpg
city
18 mpg
No data
highway
33 mpg
20.6 gal
Fuel Tank Capacity
23.8 gal
897 mi
Range
595 mi
BMW 730Ld
897 mi
595 mi
Mercedes S 420 CDI
Environmental Impact
111 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 730Ld
111 kWh
193.4 kWh
Mercedes S 420 CDI
Euro 6c (WLTP)
Emission Standard
Euro 4 III
264 g/mi (WLTP)
CO2 Emissions
398 g/mi (NEFZ)
Practical Convenience
BMW 730Ld
Mercedes S 420 CDI
4
Doors
4
5
No. of Seats
5
1312 lb
Maximum Payload
1213 lb
14.6 cu ft
Trunk Volume
15.9 cu ft
No data
Cargo Volume (Seats Down)
No data
