The Comparative Analysis :
Mercedes S 420 CDI 7G-TRONIC (06 - 09) vs. BMW 750Li xDrive Steptronic (15 - 18)
€ 91,100
€ 121,700
€ 91,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 121,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes S 420 CDI is considerably smaller in every dimension. It's 6.2 inches shorter, 1.2 inches narrower and 0.5 inches lower than the BMW 750Li.
Mercedes S 420 CDI
BMW 750Li
58
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 in
Height
58.5 in
119.5
200
126.4
206.2
200 in
Length
206.2 in
119.5 in
Wheelbase
126.4 in
Vehicle Weight
Mercedes S 420 CDI
BMW 750Li
4608 lb
Curb Weight
4387 lb
5820 lb
Gross Vehicle
Weight
Weight
5765 lb
Weight Difference:
220 lb
4.77 %
General
Mercedes S 420 CDI
BMW 750Li
W221
Generation
G12
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)

7-speed automatic transmission
Transmission
8-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
443 hp
at 5500 rpm
Mercedes S 420 CDI
316 hp
443 hp
BMW 750Li
538 lb‑ft
at 2200 rpm
Max. Torque
479 lb‑ft
at 1800 rpm
Mercedes S 420 CDI
538 lb‑ft
479 lb‑ft
BMW 750Li
Performance
Mercedes S 420 CDI
BMW 750Li
155 mph
Maximum Speed
155 mph
6 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph
62
mph
mph
272 ft
0.000 sec
Mercedes S 420 CDI
62 mph
62
mph
mph
207 ft
0.000 sec
BMW 750Li
▶ REPLAY
14.58 lb/hp
Weight-to-Power Ratio
9.9 lb/hp
Mercedes S 420 CDI
14.58 lb/hp
9.9 lb/hp
BMW 750Li
Fuel Economy / Emissions
Mercedes S 420 CDI
BMW 750Li
Fuel Economy
25 mpg
combined
28 mpg
Mercedes S 420 CDI
25 mpg
28 mpg
BMW 750Li
18 mpg
city
20 mpg
33 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
20.6 gal
595 mi
Range
584 mi
Mercedes S 420 CDI
595 mi
584 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).
157.2 kWh
Mercedes S 420 CDI
193.4 kWh
157.2 kWh
BMW 750Li
Euro 4 III
Emission Standard
Euro 6b (NEFZ)
398 g/mi (NEFZ)
CO2 Emissions
309 g/mi (NEFZ)
Practical Convenience
Mercedes S 420 CDI
BMW 750Li
4
Doors
4
5
No. of Seats
5
1213 lb
Maximum Payload
1378 lb
15.9 cu ft
Trunk Volume
14.6 cu ft











No data
Cargo Volume (Seats Down)
No data


















