The Comparative Analysis :
Mercedes S 450 CDI 7G-TRONIC (09 - 10) vs. BMW 730Ld Steptronic (15 - 19)
€ 92,700
€ 93,800
€ 92,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 93,800
ⓘ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 height, but the Mercedes S 450 CDI is 5.6 inches shorter and 1.2 inches narrower.
Mercedes S 450 CDI
BMW 730Ld
58.5
73.7
83.5
58.5
74.9
85.4
73.7 in
Width
74.9 in
83.5 in
Width Incl. Mirrors
85.4 in
58.5 in
Height
58.5 in
119.5
200.6
126.4
206.2
200.6 in
Length
206.2 in
119.5 in
Wheelbase
126.4 in
Vehicle Weight
Mercedes S 450 CDI
BMW 730Ld
4608 lb
Curb Weight
4178 lb
5930 lb
Gross Vehicle
Weight
Weight
5490 lb
Weight Difference:
430 lb
9.33 %
General
Mercedes S 450 CDI
BMW 730Ld
W221
Generation
G12
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 450 CDI
BMW 730Ld
V8 diesel engine with turbocharger
Engine Type
Straight-six diesel engine with turbocharger
Mercedes-Benz OM 629
Engine Series
BMW B57
OM 629.911
Engine Code
B57-D30

4
Valves
4
8
Cylinders
6
4 L / 196 cu in
Displacement
3 L / 147 cu in
316 hp
at 3600 rpm
Power
261 hp
at 4000 rpm
Mercedes S 450 CDI
316 hp
261 hp
BMW 730Ld
538 lb‑ft
at 2200 rpm
Max. Torque
457 lb‑ft
at 2000 rpm
Mercedes S 450 CDI
538 lb‑ft
457 lb‑ft
BMW 730Ld
Performance
Mercedes S 450 CDI
BMW 730Ld
155 mph
Maximum Speed
155 mph
6.6 sec
Acceleration 0 to 62 mph
6.2 sec
62 mph
62
mph
mph
302 ft
0.000 sec
Mercedes S 450 CDI
62 mph
62
mph
mph
282 ft
0.000 sec
BMW 730Ld
▶ REPLAY
14.58 lb/hp
Weight-to-Power Ratio
16.01 lb/hp
Mercedes S 450 CDI
14.58 lb/hp
16.01 lb/hp
BMW 730Ld
Fuel Economy / Emissions
Mercedes S 450 CDI
BMW 730Ld
Fuel Economy
26 mpg
combined
44 mpg
Mercedes S 450 CDI
26 mpg
44 mpg
BMW 730Ld
18 mpg
city
37 mpg
34 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
20.6 gal
615 mi
Range
897 mi
Mercedes S 450 CDI
615 mi
897 mi
BMW 730Ld
Environmental Impact
187.2 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).
111 kWh
Mercedes S 450 CDI
187.2 kWh
111 kWh
BMW 730Ld
Euro 4 III
Emission Standard
Euro 6c (WLTP)
386 g/mi (NEFZ)
CO2 Emissions
264 g/mi (WLTP)
Practical Convenience
Mercedes S 450 CDI
BMW 730Ld
4
Doors
4
5
No. of Seats
5
1323 lb
Maximum Payload
1312 lb
15.9 cu ft
Trunk Volume
14.6 cu ft











No data
Cargo Volume (Seats Down)
No data

















