The Comparative Analysis :
Mercedes S 420 CDI long 7G-TRONIC (06 - 09) vs. Rolls-Royce Phantom EWB 6.8 V12 Automatic (10 - 17)
€ 98,900

€ 492,500

€ 98,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 492,500
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes S 420 CDI long is substantially smaller in every dimension. It's 34.7 inches shorter, 4.7 inches narrower and 6.6 inches lower than the Rolls-Royce Phantom EWB 6.8 V12.
Mercedes S 420 CDI long
Rolls-Royce Phantom EWB 6.8 V12
58
73.7
83.5
64.6
78.3
86.2
73.7 in
Width
78.3 in
83.5 in
Width Incl. Mirrors
86.2 in
58 in
Height
64.6 in
124.6
205.1
150.4
239.8
205.1 in
Length
239.8 in
124.6 in
Wheelbase
150.4 in
Vehicle Weight
Mercedes S 420 CDI long
Rolls-Royce Phantom EWB 6.8 V12
4718 lb
Curb Weight
5886 lb
5864 lb
Gross Vehicle
Weight
Weight
6989 lb

Weight Difference:
1168 lb
19.84 %

General
Mercedes S 420 CDI long
Rolls-Royce Phantom EWB 6.8 V12
W221
Generation
RR1
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
Mercedes S 420 CDI long
Rolls-Royce Phantom EWB 6.8 V12
V8 diesel engine with turbocharger
Engine Type
V12 gasoline engine (naturally aspirated engine)
Mercedes-Benz OM 629
Engine Series
OM 629.911
Engine Code

4
Valves
4
8
Cylinders
12
4 L / 196 cu in
Displacement
6.7 L / 328 cu in
316 hp
at 3600 rpm
Power
454 hp
at 5350 rpm
Mercedes S 420 CDI long
316 hp
454 hp
Rolls-Royce Phantom EWB 6.8 V12
538 lb‑ft
at 2200 rpm
Max. Torque
531 lb‑ft
at 3500 rpm
Mercedes S 420 CDI long
538 lb‑ft
531 lb‑ft
Rolls-Royce Phantom EWB 6.8 V12
Performance
Mercedes S 420 CDI long
Rolls-Royce Phantom EWB 6.8 V12
155 mph
Maximum Speed
149 mph
6 sec
Acceleration 0 to 62 mph
5.9 sec
62 mph
62
mph
mph
272 ft
0.000 sec

Mercedes S 420 CDI long
62 mph
62
mph
mph
269 ft
0.000 sec

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











No data
Cargo Volume (Seats Down)
No data