The Comparative Analysis :
BMW 740i Steptronic (12 - 15) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)
€ 83,900
€ 91,100
€ 83,900
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. The BMW 740i is just 0.1 cm shorter, 3.1 cm wider and 0.2 cm lower than the Mercedes S 420 CDI.
BMW 740i
Mercedes S 420 CDI
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
3035
5080
5079 mm
Length
5080 mm
3070 mm
Wheelbase
3035 mm
Vehicle Weight
BMW 740i
Mercedes S 420 CDI
1900 kg
Kerb Weight
2090 kg
2515 kg
Gross Vehicle
Weight
Weight
2640 kg
Weight Difference:
190 kg
9.09 %
General
BMW 740i
Mercedes S 420 CDI
F01
Generation
W221
Saloon
Car Body Style
Saloon
Super Unleaded (98 RON)
Fuel Type
Diesel
Rear-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
BMW 740i
Mercedes S 420 CDI
Straight-six petrol engine with two turbochargers (biturbo)
Engine Type
V8 diesel engine with turbocharger
BMW N55
Engine Series
Mercedes-Benz OM 629
N55-B30
Engine Code
OM 629.911
4
Valves
4
6
Cylinders
8
2979 CC
Engine Capacity
3996 CC
316 bhp
at 5800 rpm
Power
316 bhp
at 3600 rpm
BMW 740i
316 bhp
316 bhp
Mercedes S 420 CDI
450 NM
at 1300 rpm
Max. Torque
730 NM
at 2200 rpm
BMW 740i
450 NM
730 NM
Mercedes S 420 CDI
Performance
BMW 740i
Mercedes S 420 CDI
155 mph
Maximum Speed
155 mph
5.7 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
79 m
0.000 sec
BMW 740i
62 mph
62
mph
mph
83 m
0.000 sec
Mercedes S 420 CDI
▶ REPLAY
6.01 kg/bhp
Weight-to-Power Ratio
6.61 kg/bhp
BMW 740i
6.01 kg/bhp
6.61 kg/bhp
Mercedes S 420 CDI
Fuel Economy / Emissions
BMW 740i
Mercedes S 420 CDI
Fuel Economy
36 mpg
combined
30 mpg
BMW 740i
36 mpg
30 mpg
Mercedes S 420 CDI
27 mpg
city
22 mpg
No data
motorway
39 mpg
80 L
Fuel Tank Capacity
90 L
629 mi
Range
595 mi
BMW 740i
629 mi
595 mi
Mercedes S 420 CDI
Environmental Impact
149.7 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 740i
149.7 kWh
193.4 kWh
Mercedes S 420 CDI
Euro 5
Emission Standard
Euro 4 III
184 g/km (NEFZ)
CO2 Emissions
247 g/km (NEFZ)
Practical Convenience
BMW 740i
Mercedes S 420 CDI
4
Doors
4
5
No. of Seats
5
615 kg
Maximum Payload
550 kg
500 L
Boot Capacity
560 L
No data
Boot Capacity (Seats Down)
No data
