The Comparative Analysis :
Mercedes S 450 7G-TRONIC (06 - 09) vs. BMW 740i Steptronic (15 - 18)
€ 83,700

€ 94,200

€ 83,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 94,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes S 450 is a little smaller in every dimension. It's 0.7 inches shorter, 1.2 inches narrower and 0.2 inches lower than the BMW 740i.
Mercedes S 450
BMW 740i
58
73.7
83.5
58.2
74.9
85.4
73.7 in
Width
74.9 in
83.5 in
Width Incl. Mirrors
85.4 in
58 in
Height
58.2 in
119.5
200
120.9
200.7
200 in
Length
200.7 in
119.5 in
Wheelbase
120.9 in
Vehicle Weight
Mercedes S 450
BMW 740i
4277 lb
Curb Weight
3968 lb
5611 lb
Gross Vehicle
Weight
Weight
5291 lb

Weight Difference:
309 lb
7.22 %

General
Mercedes S 450
BMW 740i
W221
Generation
G11
Sedan
Car Body Style
Sedan
Mid-Grade Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Mercedes S 450
BMW 740i
V8 gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine with turbocharger
Mercedes-Benz M 273
Engine Series
BMW B58
M 273.922
Engine Code
B58-B30


4
Valves
4
8
Cylinders
6
4.7 L / 230 cu in
Displacement
3 L / 147 cu in
335 hp
at 6000 rpm
Power
322 hp
at 5500 rpm
Mercedes S 450
335 hp
322 hp
BMW 740i
339 lb‑ft
at 2700 rpm
Max. Torque
332 lb‑ft
at 1380 rpm
Mercedes S 450
339 lb‑ft
332 lb‑ft
BMW 740i
Performance
Mercedes S 450
BMW 740i
155 mph
Maximum Speed
155 mph
5.9 sec
Acceleration 0 to 62 mph
5.5 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Mercedes S 450
62 mph
62
mph
mph
249 ft
0.000 sec

BMW 740i
▶ REPLAY
12.77 lb/hp
Weight-to-Power Ratio
12.32 lb/hp
Mercedes S 450
12.77 lb/hp
12.32 lb/hp
BMW 740i
Fuel Economy / Emissions
Mercedes S 450
BMW 740i
Fuel Economy
21 mpg
combined
35 mpg
Mercedes S 450
21 mpg
35 mpg
BMW 740i
14 mpg
city
25 mpg
29 mpg
highway
No data
23.8 gal
Fuel Tank Capacity
20.6 gal
500 mi
Range
713 mi
Mercedes S 450
500 mi
713 mi
BMW 740i
Environmental Impact
212.1 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).
128.7 kWh
Mercedes S 450
212.1 kWh
128.7 kWh
BMW 740i
Euro 4 III
Emission Standard
Euro 6b (NEFZ)
430 g/mi (NEFZ)
CO2 Emissions
256 g/mi (NEFZ)
Practical Convenience
Mercedes S 450
BMW 740i
4
Doors
4
5
No. of Seats
5
1334 lb
Maximum Payload
1323 lb
15.9 cu ft
Trunk Volume
14.6 cu ft











No data
Cargo Volume (Seats Down)
No data