The Comparative Analysis :
Rolls-Royce Phantom 6.8 V12 Automatic (03 - 10) vs. Mercedes S 450 CDI 7G-TRONIC (09 - 10)
€ 411,400

€ 92,700

€ 411,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 92,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Rolls-Royce Phantom 6.8 V12 is substantially bigger in every dimension. It's 29.1 inches longer, 4.7 inches wider and 5.8 inches taller than the Mercedes S 450 CDI.
Rolls-Royce Phantom 6.8 V12
Mercedes S 450 CDI
64.3
78.3
86.2
58.5
73.7
83.5
78.3 in
Width
73.7 in
86.2 in
Width Incl. Mirrors
83.5 in
64.3 in
Height
58.5 in
140.6
229.7
119.5
200.6
229.7 in
Length
200.6 in
140.6 in
Wheelbase
119.5 in
Vehicle Weight
Rolls-Royce Phantom 6.8 V12
Mercedes S 450 CDI
5622 lb
Curb Weight
4608 lb
6724 lb
Gross Vehicle
Weight
Weight
5930 lb

Weight Difference:
1014 lb
18.04 %

General
Rolls-Royce Phantom 6.8 V12
Mercedes S 450 CDI
RR1
Generation
W221
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

6-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
Rolls-Royce Phantom 6.8 V12
Mercedes S 450 CDI
V12 gasoline engine (naturally aspirated engine)
Engine Type
V8 diesel engine with turbocharger
Engine Series
Mercedes-Benz OM 629
Engine Code
OM 629.911

4
Valves
4
12
Cylinders
8
6.7 L / 328 cu in
Displacement
4 L / 196 cu in
454 hp
at 5350 rpm
Power
316 hp
at 3600 rpm
Rolls-Royce Phantom 6.8 V12
454 hp
316 hp
Mercedes S 450 CDI
531 lb‑ft
at 3500 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
Rolls-Royce Phantom 6.8 V12
531 lb‑ft
538 lb‑ft
Mercedes S 450 CDI
Performance
Rolls-Royce Phantom 6.8 V12
Mercedes S 450 CDI
149 mph
Maximum Speed
155 mph
5.9 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Rolls-Royce Phantom 6.8 V12
62 mph
62
mph
mph
302 ft
0.000 sec

Mercedes S 450 CDI
▶ REPLAY
12.38 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
Rolls-Royce Phantom 6.8 V12
12.38 lb/hp
14.58 lb/hp
Mercedes S 450 CDI
Fuel Economy / Emissions
Rolls-Royce Phantom 6.8 V12
Mercedes S 450 CDI
Fuel Economy
15 mpg
combined
26 mpg
Rolls-Royce Phantom 6.8 V12
15 mpg
26 mpg
Mercedes S 450 CDI
10 mpg
city
18 mpg
21 mpg
highway
34 mpg
26.4 gal
Fuel Tank Capacity
23.8 gal
396 mi
Range
615 mi
Rolls-Royce Phantom 6.8 V12
396 mi
615 mi
Mercedes S 450 CDI
Environmental Impact
297.4 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).
187.2 kWh
Rolls-Royce Phantom 6.8 V12
297.4 kWh
187.2 kWh
Mercedes S 450 CDI
Euro 4 III
Emission Standard
Euro 4 III
607 g/mi (NEFZ)
CO2 Emissions
386 g/mi (NEFZ)
Practical Convenience
Rolls-Royce Phantom 6.8 V12
Mercedes S 450 CDI
4
Doors
4
5
No. of Seats
5
1102 lb
Maximum Payload
1323 lb
13 cu ft
Trunk Volume
15.9 cu ft











No data
Cargo Volume (Seats Down)
No data