The Comparative Analysis :
Rolls-Royce Phantom EWB 6.8 V12 Automatic (10 - 17) vs. Mercedes S 420 CDI long 7G-TRONIC (06 - 09)
€ 492,500

€ 98,900

€ 492,500
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 Rolls-Royce Phantom EWB 6.8 V12 is substantially bigger in every dimension. It's 34.7 inches longer, 4.7 inches wider and 6.6 inches taller than the Mercedes S 420 CDI long.
Rolls-Royce Phantom EWB 6.8 V12
Mercedes S 420 CDI long
64.6
78.3
86.2
58
73.7
83.5
78.3 in
Width
73.7 in
86.2 in
Width Incl. Mirrors
83.5 in
64.6 in
Height
58 in
150.4
239.8
124.6
205.1
239.8 in
Length
205.1 in
150.4 in
Wheelbase
124.6 in
Vehicle Weight
Rolls-Royce Phantom EWB 6.8 V12
Mercedes S 420 CDI long
5886 lb
Curb Weight
4718 lb
6989 lb
Gross Vehicle
Weight
Weight
5864 lb

Weight Difference:
1168 lb
19.84 %

General
Rolls-Royce Phantom EWB 6.8 V12
Mercedes S 420 CDI long
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 EWB 6.8 V12
Mercedes S 420 CDI long
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 EWB 6.8 V12
454 hp
316 hp
Mercedes S 420 CDI long
531 lb‑ft
at 3500 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
Rolls-Royce Phantom EWB 6.8 V12
531 lb‑ft
538 lb‑ft
Mercedes S 420 CDI long
Performance
Rolls-Royce Phantom EWB 6.8 V12
Mercedes S 420 CDI long
149 mph
Maximum Speed
155 mph
5.9 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Rolls-Royce Phantom EWB 6.8 V12
62 mph
62
mph
mph
272 ft
0.000 sec

Mercedes S 420 CDI long
▶ REPLAY
12.96 lb/hp
Weight-to-Power Ratio
14.93 lb/hp
Rolls-Royce Phantom EWB 6.8 V12
12.96 lb/hp
14.93 lb/hp
Mercedes S 420 CDI long
Fuel Economy / Emissions
Rolls-Royce Phantom EWB 6.8 V12
Mercedes S 420 CDI long
Fuel Economy
16 mpg
combined
25 mpg
Rolls-Royce Phantom EWB 6.8 V12
16 mpg
25 mpg
Mercedes S 420 CDI long
10 mpg
city
18 mpg
23 mpg
highway
33 mpg
26.4 gal
Fuel Tank Capacity
23.8 gal
417 mi
Range
595 mi
Rolls-Royce Phantom EWB 6.8 V12
417 mi
595 mi
Mercedes S 420 CDI long
Environmental Impact
282.3 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
Rolls-Royce Phantom EWB 6.8 V12
282.3 kWh
193.4 kWh
Mercedes S 420 CDI long
Euro 6b (NEFZ)
Emission Standard
Euro 4 III
558 g/mi (NEFZ)
CO2 Emissions
398 g/mi (NEFZ)
Practical Convenience
Rolls-Royce Phantom EWB 6.8 V12
Mercedes S 420 CDI long
4
Doors
4
5
No. of Seats
5
1102 lb
Maximum Payload
1146 lb
13 cu ft
Trunk Volume
15.9 cu ft











No data
Cargo Volume (Seats Down)
No data