The Comparative Analysis :
Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17) vs. Porsche 911 Targa 4 (16 - 18)
€ 465,600

€ 118,400

€ 465,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 118,400
ⓘ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 43.8 inches longer, 5.3 inches wider and 10.9 inches taller than the Porsche 911 Targa 4.
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Targa 4
61.7
78.2
86.1
50.7
72.9
77.9
78.2 in
Width
72.9 in
86.1 in
Width Incl. Mirrors
77.9 in
61.7 in
Height
50.7 in
130.7
220.9
96.5
177.1
220.9 in
Length
177.1 in
130.7 in
Wheelbase
96.5 in
Vehicle Weight
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Targa 4
5776 lb
Curb Weight
3627 lb
6724 lb
Gross Vehicle
Weight
Weight
4409 lb

Weight Difference:
2150 lb
37.22 %

General
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Targa 4
RR2
Generation
991
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)

6-speed automatic transmission
Transmission
7-speed manual transmission
Engine
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Targa 4
V12 gasoline engine (naturally aspirated engine)
Engine Type
6-cylinder boxer gasoline engine with two turbochargers (biturbo)
4
Valves
4
12
Cylinders
6
6.7 L / 328 cu in
Displacement
3 L / 147 cu in
454 hp
at 5350 rpm
Power
365 hp
at 6500 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
454 hp
365 hp
Porsche 911 Targa 4
531 lb‑ft
at 3500 rpm
Max. Torque
332 lb‑ft
at 1700 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
531 lb‑ft
332 lb‑ft
Porsche 911 Targa 4
Performance
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Targa 4
149 mph
Maximum Speed
180 mph
5.8 sec
Acceleration 0 to 62 mph
4.7 sec
62 mph
62
mph
mph
266 ft
0.000 sec

Rolls-Royce Phantom Drophead Coupé 6.8 V12
62 mph
62
mph
mph
213 ft
0.000 sec

Porsche 911 Targa 4
▶ REPLAY
12.72 lb/hp
Weight-to-Power Ratio
9.94 lb/hp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
12.72 lb/hp
9.94 lb/hp
Porsche 911 Targa 4
Fuel Economy / Emissions
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Targa 4
Fuel Economy
16 mpg
combined
26 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
16 mpg
26 mpg
Porsche 911 Targa 4
10 mpg
city
19 mpg
23 mpg
highway
34 mpg
21.1 gal
Fuel Tank Capacity
18 gal
336 mi
Range
475 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
336 mi
475 mi
Porsche 911 Targa 4
Environmental Impact
280.3 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).
168.7 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
280.3 kWh
168.7 kWh
Porsche 911 Targa 4
Euro 6b (NEFZ)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
558 g/mi (NEFZ)
CO2 Emissions
332 g/mi (NEFZ)
Practical Convenience
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Porsche 911 Targa 4
2
Doors
2
4
No. of Seats
4
948 lb
Maximum Payload
783 lb
8.9 cu ft
Trunk Volume
3.5 cu ft




No data
Cargo Volume (Seats Down)
No data