The Comparative Analysis :
Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10) vs. Porsche 911 Carrera Cabriolet 4S PDK (12 - 15)
€ 450,700
€ 128,600
€ 450,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 128,600
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Rolls-Royce Phantom Drophead Coupé 6.8 V12 is substantially bigger in every dimension. It's 111.8 cm longer, 13.5 cm wider and 28.7 cm taller than the Porsche 911 Carrera Cabriolet 4S.
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet 4S
1581
1987
2187
1294
1852
1978
1987 mm
Width
1852 mm
2187 mm
Width Incl. Mirrors
1978 mm
1581 mm
Height
1294 mm
3320
5609
2450
4491
5609 mm
Length
4491 mm
3320 mm
Wheelbase
2450 mm
Vehicle Weight
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet 4S
2620 kg
Kerb Weight
1610 kg
3050 kg
Gross Vehicle
Weight
Weight
1955 kg
Weight Difference:
1010 kg
38.55 %
General
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet 4S
RR2
Generation
991
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Permanent all-wheel drive
6-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet 4S
V12 petrol engine (naturally aspirated engine)
Engine Type
6-cylinder boxer petrol engine (naturally aspirated engine)
4
Valves
4
12
Cylinders
6
6749 CC
Engine Capacity
3800 CC
454 bhp
at 5350 rpm
Power
395 bhp
at 7400 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
454 bhp
395 bhp
Porsche 911 Carrera Cabriolet 4S
720 NM
at 3500 rpm
Max. Torque
440 NM
at 5600 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
720 NM
440 NM
Porsche 911 Carrera Cabriolet 4S
Performance
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet 4S
149 mph
Maximum Speed
183 mph
5.8 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph
62
mph
mph
81 m
0.000 sec
Rolls-Royce Phantom Drophead Coupé 6.8 V12
62 mph
62
mph
mph
63 m
0.000 sec
Porsche 911 Carrera Cabriolet 4S
▶ REPLAY
5.77 kg/bhp
Weight-to-Power Ratio
4.08 kg/bhp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
5.77 kg/bhp
4.08 kg/bhp
Porsche 911 Carrera Cabriolet 4S
Fuel Economy / Emissions
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet 4S
Fuel Economy
18 mpg
combined
31 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
18 mpg
31 mpg
Porsche 911 Carrera Cabriolet 4S
11 mpg
city
22 mpg
26 mpg
motorway
40 mpg
80 L
Fuel Tank Capacity
68 L
313 mi
Range
459 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
313 mi
459 mi
Porsche 911 Carrera Cabriolet 4S
Environmental Impact
301.3 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).
174.3 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
301.3 kWh
174.3 kWh
Porsche 911 Carrera Cabriolet 4S
Euro 4 III
Emission Standard
Euro 5 / Euro 6
385 g/km (NEFZ)
CO2 Emissions
217 g/km (NEFZ)
Practical Convenience
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet 4S
2
Doors
2
4
No. of Seats
4
430 kg
Maximum Payload
345 kg
315 L
Boot Capacity
125 L
No data
Boot Capacity (Seats Down)
No data
