The Comparative Analysis :
Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10) vs. Porsche 911 Carrera Cabriolet GTS PDK (17 - 19)
€ 450,700

€ 143,000

€ 450,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 143,000
ⓘ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 108.1 cm longer, 13.5 cm wider and 29 cm taller than the Porsche 911 Carrera Cabriolet GTS.
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet GTS
1581
1987
2187
1291
1852
1978
1987 mm
Width
1852 mm
2187 mm
Width Incl. Mirrors
1978 mm
1581 mm
Height
1291 mm
3320
5609
2450
4528
5609 mm
Length
4528 mm
3320 mm
Wheelbase
2450 mm
Vehicle Weight
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet GTS
2620 kg
Kerb Weight
1615 kg
3050 kg
Gross Vehicle
Weight
Weight
1985 kg

Weight Difference:
1005 kg
38.36 %

General
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet GTS
RR2
Generation
991
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 GTS
V12 petrol engine (naturally aspirated engine)
Engine Type
6-cylinder boxer petrol engine with two turbochargers (biturbo)
4
Valves
4
12
Cylinders
6
6749 CC
Engine Capacity
2981 CC
454 bhp
at 5350 rpm
Power
444 bhp
at 6500 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
454 bhp
444 bhp
Porsche 911 Carrera Cabriolet GTS
720 NM
at 3500 rpm
Max. Torque
550 NM
at 2150 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
720 NM
550 NM
Porsche 911 Carrera Cabriolet GTS
Performance
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet GTS
149 mph
Maximum Speed
191 mph
5.8 sec
Acceleration 0 to 62 mph
3.8 sec
62 mph
62
mph
mph
81 m
0.000 sec

Rolls-Royce Phantom Drophead Coupé 6.8 V12
62 mph
62
mph
mph
53 m
0.000 sec

Porsche 911 Carrera Cabriolet GTS
▶ REPLAY
5.77 kg/bhp
Weight-to-Power Ratio
3.64 kg/bhp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
5.77 kg/bhp
3.64 kg/bhp
Porsche 911 Carrera Cabriolet GTS
Fuel Economy / Emissions
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet GTS
Fuel Economy
18 mpg
combined
34 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
18 mpg
34 mpg
Porsche 911 Carrera Cabriolet GTS
11 mpg
city
26 mpg
26 mpg
motorway
40 mpg
80 L
Fuel Tank Capacity
64 L
313 mi
Range
473 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
313 mi
473 mi
Porsche 911 Carrera Cabriolet GTS
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).
159.2 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
301.3 kWh
159.2 kWh
Porsche 911 Carrera Cabriolet GTS
Euro 4 III
Emission Standard
Euro 6
385 g/km (NEFZ)
CO2 Emissions
190 g/km (NEFZ)
Practical Convenience
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Carrera Cabriolet GTS
2
Doors
2
4
No. of Seats
4
430 kg
Maximum Payload
370 kg
315 L
Boot Capacity
125 L




No data
Boot Capacity (Seats Down)
No data