The Comparative Analysis :
BMW 740d xDrive Steptronic (12 - 15) vs. Mercedes S 420 CDI long 7G-TRONIC (06 - 09)
€ 88,500
€ 98,900
€ 88,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 98,900
ⓘ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. The BMW 740d is 13.1 cm shorter, 3.1 cm wider and 0.2 cm lower than the Mercedes S 420 CDI long.
BMW 740d
Mercedes S 420 CDI long
1471
1902
2134
1473
1871
2120
1902 mm
Width
1871 mm
2134 mm
Width Incl. Mirrors
2120 mm
1471 mm
Height
1473 mm
3070
5079
3165
5210
5079 mm
Length
5210 mm
3070 mm
Wheelbase
3165 mm
Vehicle Weight
BMW 740d
Mercedes S 420 CDI long
2015 kg
Kerb Weight
2140 kg
2590 kg
Gross Vehicle
Weight
Weight
2660 kg
Weight Difference:
125 kg
5.84 %
General
BMW 740d
Mercedes S 420 CDI long
F01
Generation
W221
Saloon
Car Body Style
Saloon
Diesel
Fuel Type
Diesel

Permanent all-wheel drive
Drive
Rear-wheel drive

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
BMW 740d
Mercedes S 420 CDI long
Straight-six diesel engine with two turbochargers (biturbo)
Engine Type
V8 diesel engine with turbocharger
BMW N57
Engine Series
Mercedes-Benz OM 629
N57-D30
Engine Code
OM 629.911


4
Valves
4
6
Cylinders
8
2993 CC
Engine Capacity
3996 CC
309 bhp
at 4300 rpm
Power
316 bhp
at 3600 rpm
BMW 740d
309 bhp
316 bhp
Mercedes S 420 CDI long
630 NM
at 1500 rpm
Max. Torque
730 NM
at 2200 rpm
BMW 740d
630 NM
730 NM
Mercedes S 420 CDI long
Performance
BMW 740d
Mercedes S 420 CDI long
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
75 m
0.000 sec
BMW 740d
62 mph
62
mph
mph
83 m
0.000 sec
Mercedes S 420 CDI long
▶ REPLAY
6.52 kg/bhp
Weight-to-Power Ratio
6.77 kg/bhp
BMW 740d
6.52 kg/bhp
6.77 kg/bhp
Mercedes S 420 CDI long
Fuel Economy / Emissions
BMW 740d
Mercedes S 420 CDI long
Fuel Economy
47 mpg
combined
30 mpg
BMW 740d
47 mpg
30 mpg
Mercedes S 420 CDI long
39 mpg
city
22 mpg
No data
motorway
39 mpg
80 L
Fuel Tank Capacity
90 L
828 mi
Range
595 mi
BMW 740d
828 mi
595 mi
Mercedes S 420 CDI long
Environmental Impact
123.4 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).
193.4 kWh
BMW 740d
123.4 kWh
193.4 kWh
Mercedes S 420 CDI long
Euro 5
Emission Standard
Euro 4 III
159 g/km (NEFZ)
CO2 Emissions
247 g/km (NEFZ)
Practical Convenience
BMW 740d
Mercedes S 420 CDI long
4
Doors
4
5
No. of Seats
5
575 kg
Maximum Payload
520 kg
500 L
Boot Capacity
560 L










No data
Boot Capacity (Seats Down)
No data


















