The Comparative Analysis :
Mercedes S 420 CDI 7G-TRONIC (06 - 09) vs. BMW 750Li Automatic (08 - 12)
€ 91,100
€ 97,000
€ 91,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 97,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes S 420 CDI is slightly smaller in every dimension. It's 5.2 inches shorter, 1.2 inches narrower and 0.2 inches lower than the BMW 750Li.
Mercedes S 420 CDI
BMW 750Li
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
126.4
205.2
200 in
Length
205.2 in
119.5 in
Wheelbase
126.4 in
Vehicle Weight
Mercedes S 420 CDI
BMW 750Li
4608 lb
Curb Weight
4530 lb
5820 lb
Gross Vehicle
Weight
Weight
5754 lb
Weight Difference:
77 lb
1.67 %
General
Mercedes S 420 CDI
BMW 750Li
W221
Generation
F02
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
Mercedes S 420 CDI
BMW 750Li
V8 diesel engine with turbocharger
Engine Type
V8 gasoline engine with two turbochargers (biturbo)
Mercedes-Benz OM 629
Engine Series
BMW N63
OM 629.911
Engine Code
N63-B44

4
Valves
4
8
Cylinders
8
4 L / 196 cu in
Displacement
4.4 L / 215 cu in
316 hp
at 3600 rpm
Power
402 hp
at 5500 rpm
Mercedes S 420 CDI
316 hp
402 hp
BMW 750Li
538 lb‑ft
at 2200 rpm
Max. Torque
443 lb‑ft
at 1750 rpm
Mercedes S 420 CDI
538 lb‑ft
443 lb‑ft
BMW 750Li
Performance
Mercedes S 420 CDI
BMW 750Li
155 mph
Maximum Speed
155 mph
6 sec
Acceleration 0 to 62 mph
5.3 sec
62 mph
62
mph
mph
272 ft
0.000 sec
Mercedes S 420 CDI
62 mph
62
mph
mph
243 ft
0.000 sec
BMW 750Li
▶ REPLAY
14.58 lb/hp
Weight-to-Power Ratio
11.27 lb/hp
Mercedes S 420 CDI
14.58 lb/hp
11.27 lb/hp
BMW 750Li
Fuel Economy / Emissions
Mercedes S 420 CDI
BMW 750Li
Fuel Economy
25 mpg
combined
21 mpg
Mercedes S 420 CDI
25 mpg
21 mpg
BMW 750Li
18 mpg
city
14 mpg
33 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
21.7 gal
595 mi
Range
447 mi
Mercedes S 420 CDI
595 mi
447 mi
BMW 750Li
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).
216 kWh
Mercedes S 420 CDI
193.4 kWh
216 kWh
BMW 750Li
Euro 4 III
Emission Standard
Euro 5
398 g/mi (NEFZ)
CO2 Emissions
428 g/mi (NEFZ)
Practical Convenience
Mercedes S 420 CDI
BMW 750Li
4
Doors
4
5
No. of Seats
5
1213 lb
Maximum Payload
1224 lb
15.9 cu ft
Trunk Volume
14.2 cu ft










No data
Cargo Volume (Seats Down)
No data





















