The Comparative Analysis :
Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10) vs. Porsche 911 Carrera Cabriolet PDK (08 - 11)
€ 450,700
€ 100,400
€ 450,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 100,400
ⓘ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 117.4 cm longer, 17.9 cm wider and 27.1 cm taller than the Porsche 911 Carrera Cabriolet.
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet
1581
1987
2187
1310
1808
2008
1987 mm
Width
1808 mm
2187 mm
Width Incl. Mirrors
2008 mm
1581 mm
Height
1310 mm
3320
5609
2350
4435
5609 mm
Length
4435 mm
3320 mm
Wheelbase
2350 mm
Vehicle Weight
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet
2620 kg
Kerb Weight
1605 kg
3050 kg
Gross Vehicle
Weight
Weight
1910 kg
Weight Difference:
1015 kg
38.74 %
General
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet
RR2
Generation
997
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-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
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
3614 CC
454 bhp
at 5350 rpm
Power
340 bhp
at 6500 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
454 bhp
340 bhp
Porsche 911 Carrera Cabriolet
720 NM
at 3500 rpm
Max. Torque
390 NM
at 4400 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
720 NM
390 NM
Porsche 911 Carrera Cabriolet
Performance
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet
149 mph
Maximum Speed
178 mph
5.8 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
81 m
0.000 sec
Rolls-Royce Phantom Drophead Coupé 6.8 V12
62 mph
62
mph
mph
68 m
0.000 sec
Porsche 911 Carrera Cabriolet
▶ REPLAY
5.77 kg/bhp
Weight-to-Power Ratio
4.72 kg/bhp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
5.77 kg/bhp
4.72 kg/bhp
Porsche 911 Carrera Cabriolet
Fuel Economy / Emissions
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet
Fuel Economy
18 mpg
combined
29 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
18 mpg
29 mpg
Porsche 911 Carrera Cabriolet
11 mpg
city
19 mpg
26 mpg
motorway
41 mpg
80 L
Fuel Tank Capacity
64 L
313 mi
Range
401 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
313 mi
401 mi
Porsche 911 Carrera Cabriolet
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).
187.5 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
301.3 kWh
187.5 kWh
Porsche 911 Carrera Cabriolet
Euro 4 III
Emission Standard
Euro 5
385 g/km (NEFZ)
CO2 Emissions
233 g/km (NEFZ)
Practical Convenience
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet
2
Doors
2
4
No. of Seats
4
430 kg
Maximum Payload
305 kg
315 L
Boot Capacity
135 L
No data
Boot Capacity (Seats Down)
No data
