The Comparative Analysis :
Rolls-Royce Ghost Dawn 6.6 V12 Automatic (16 - 18) vs. Porsche 911 Carrera Cabriolet 4 GTS PDK (14 - 15)
€ 333,200

€ 141,600

€ 333,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 141,600
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Rolls-Royce Ghost 6.6 V12 is substantially bigger in every dimension. It's 77.6 cm longer, 9.5 cm wider and 20.8 cm taller than the Porsche 911 Carrera Cabriolet 4 GTS.
Rolls-Royce Ghost 6.6 V12
Porsche 911 Carrera Cabriolet 4 GTS
1502
1947
2147
1294
1852
1978
1947 mm
Width
1852 mm
2147 mm
Width Incl. Mirrors
1978 mm
1502 mm
Height
1294 mm
3112
5285
2450
4509
5285 mm
Length
4509 mm
3112 mm
Wheelbase
2450 mm
Vehicle Weight
Rolls-Royce Ghost 6.6 V12
Porsche 911 Carrera Cabriolet 4 GTS
2560 kg
Kerb Weight
1635 kg
2810 kg
Gross Vehicle
Weight
Weight
1955 kg

Weight Difference:
925 kg
36.13 %

General
Rolls-Royce Ghost 6.6 V12
Porsche 911 Carrera Cabriolet 4 GTS
RR6
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

8-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
Rolls-Royce Ghost 6.6 V12
Porsche 911 Carrera Cabriolet 4 GTS
V12 petrol engine with two turbochargers (biturbo)
Engine Type
6-cylinder boxer petrol engine (naturally aspirated engine)
4
Valves
4
12
Cylinders
6
6592 CC
Engine Capacity
3800 CC
562 bhp
at 5600 rpm
Power
424 bhp
at 7500 rpm
Rolls-Royce Ghost 6.6 V12
562 bhp
424 bhp
Porsche 911 Carrera Cabriolet 4 GTS
780 NM
at 1400 rpm
Max. Torque
440 NM
at 5750 rpm
Rolls-Royce Ghost 6.6 V12
780 NM
440 NM
Porsche 911 Carrera Cabriolet 4 GTS
Performance
Rolls-Royce Ghost 6.6 V12
Porsche 911 Carrera Cabriolet 4 GTS
155 mph
Maximum Speed
187 mph
4.9 sec
Acceleration 0 to 62 mph
4.2 sec
62 mph
62
mph
mph
68 m
0.000 sec

Rolls-Royce Ghost 6.6 V12
62 mph
62
mph
mph
58 m
0.000 sec

Porsche 911 Carrera Cabriolet 4 GTS
▶ REPLAY
4.56 kg/bhp
Weight-to-Power Ratio
3.86 kg/bhp
Rolls-Royce Ghost 6.6 V12
4.56 kg/bhp
3.86 kg/bhp
Porsche 911 Carrera Cabriolet 4 GTS
Fuel Economy / Emissions
Rolls-Royce Ghost 6.6 V12
Porsche 911 Carrera Cabriolet 4 GTS
Fuel Economy
20 mpg
combined
31 mpg
Rolls-Royce Ghost 6.6 V12
20 mpg
31 mpg
Porsche 911 Carrera Cabriolet 4 GTS
13 mpg
city
23 mpg
28 mpg
motorway
40 mpg
83 L
Fuel Tank Capacity
68 L
358 mi
Range
459 mi
Rolls-Royce Ghost 6.6 V12
358 mi
459 mi
Porsche 911 Carrera Cabriolet 4 GTS
Environmental Impact
272.8 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 Ghost 6.6 V12
272.8 kWh
174.3 kWh
Porsche 911 Carrera Cabriolet 4 GTS
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
330 g/km (NEFZ)
CO2 Emissions
214 g/km (NEFZ)
Practical Convenience
Rolls-Royce Ghost 6.6 V12
Porsche 911 Carrera Cabriolet 4 GTS
2
Doors
2
4
No. of Seats
4
250 kg
Maximum Payload
320 kg
321 L
Boot Capacity
125 L




No data
Boot Capacity (Seats Down)
No data