The Comparative Analysis :
BMW 750i Automatic (12 - 13) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)
€ 96,000

€ 91,100

€ 96,000
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. Both cars are the same length, but the BMW 750i is 1.2 inches wider and 0.1 inches lower.
BMW 750i
Mercedes S 420 CDI
57.9
74.9
84
58
73.7
83.5
74.9 in
Width
73.7 in
84 in
Width Incl. Mirrors
83.5 in
57.9 in
Height
58 in
120.9
200
119.5
200
200 in
Length
200 in
120.9 in
Wheelbase
119.5 in
Vehicle Weight
BMW 750i
Mercedes S 420 CDI
4442 lb
Curb Weight
4608 lb
5732 lb
Gross Vehicle
Weight
Weight
5820 lb

Weight Difference:
165 lb
3.58 %

General
BMW 750i
Mercedes S 420 CDI
F01
Generation
W221
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

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

4
Valves
4
8
Cylinders
8
4.4 L / 215 cu in
Displacement
4 L / 196 cu in
443 hp
at 5500 rpm
Power
316 hp
at 3600 rpm
BMW 750i
443 hp
316 hp
Mercedes S 420 CDI
479 lb‑ft
at 2000 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
BMW 750i
479 lb‑ft
538 lb‑ft
Mercedes S 420 CDI
Performance
BMW 750i
Mercedes S 420 CDI
155 mph
Maximum Speed
155 mph
4.8 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
220 ft
0.000 sec

BMW 750i
62 mph
62
mph
mph
272 ft
0.000 sec

Mercedes S 420 CDI
▶ REPLAY
10.03 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
BMW 750i
10.03 lb/hp
14.58 lb/hp
Mercedes S 420 CDI
Fuel Economy / Emissions
BMW 750i
Mercedes S 420 CDI
Fuel Economy
27 mpg
combined
25 mpg
BMW 750i
27 mpg
25 mpg
Mercedes S 420 CDI
20 mpg
city
18 mpg
No data
highway
33 mpg
21.1 gal
Fuel Tank Capacity
23.8 gal
578 mi
Range
595 mi
BMW 750i
578 mi
595 mi
Mercedes S 420 CDI
Environmental Impact
162.9 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 750i
162.9 kWh
193.4 kWh
Mercedes S 420 CDI
Euro 5
Emission Standard
Euro 4 III
320 g/mi (NEFZ)
CO2 Emissions
398 g/mi (NEFZ)
Practical Convenience
BMW 750i
Mercedes S 420 CDI
4
Doors
4
5
No. of Seats
5
1290 lb
Maximum Payload
1213 lb
14.2 cu ft
Trunk Volume
15.9 cu ft










No data
Cargo Volume (Seats Down)
No data