The Comparative Analysis :
Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10) vs. BMW 640d Convertible xDrive Steptronic (15 - 18)
€ 450,700

€ 99,300

€ 450,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 99,300
ⓘ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 28.1 inches longer, 3.7 inches wider and 8.5 inches taller than the BMW 640d Cabrio.
Rolls-Royce Phantom Drophead Coupé 6.8 V12
BMW 640d Cabrio
62.2
78.2
86.1
53.7
74.6
81.9
78.2 in
Width
74.6 in
86.1 in
Width Incl. Mirrors
81.9 in
62.2 in
Height
53.7 in
130.7
220.8
112.4
192.7
220.8 in
Length
192.7 in
130.7 in
Wheelbase
112.4 in
Vehicle Weight
Rolls-Royce Phantom Drophead Coupé 6.8 V12
BMW 640d Cabrio
5776 lb
Curb Weight
4420 lb
6724 lb
Gross Vehicle
Weight
Weight
5379 lb

Weight Difference:
1356 lb
23.48 %

General
Rolls-Royce Phantom Drophead Coupé 6.8 V12
BMW 640d Cabrio
RR2
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Diesel

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

6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Rolls-Royce Phantom Drophead Coupé 6.8 V12
BMW 640d Cabrio
V12 gasoline engine (naturally aspirated engine)
Engine Type
Straight-six diesel engine with two turbochargers (biturbo)
Engine Series
BMW N57
Engine Code
N57-D30

4
Valves
4
12
Cylinders
6
6.7 L / 328 cu in
Displacement
3 L / 147 cu in
454 hp
at 5350 rpm
Power
309 hp
at 4400 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
454 hp
309 hp
BMW 640d Cabrio
531 lb‑ft
at 3500 rpm
Max. Torque
465 lb‑ft
at 1500 rpm
Rolls-Royce Phantom Drophead Coupé 6.8 V12
531 lb‑ft
465 lb‑ft
BMW 640d Cabrio
Performance
Rolls-Royce Phantom Drophead Coupé 6.8 V12
BMW 640d Cabrio
149 mph
Maximum Speed
155 mph
5.8 sec
Acceleration 0 to 62 mph
5.3 sec
62 mph
62
mph
mph
266 ft
0.000 sec

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

BMW 640d Cabrio
▶ REPLAY
12.72 lb/hp
Weight-to-Power Ratio
14.3 lb/hp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
12.72 lb/hp
14.3 lb/hp
BMW 640d Cabrio
Fuel Economy / Emissions
Rolls-Royce Phantom Drophead Coupé 6.8 V12
BMW 640d Cabrio
Fuel Economy
15 mpg
combined
41 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
15 mpg
41 mpg
BMW 640d Cabrio
10 mpg
city
35 mpg
21 mpg
highway
No data
21.1 gal
Fuel Tank Capacity
18.5 gal
313 mi
Range
750 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
313 mi
750 mi
BMW 640d Cabrio
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).
119.3 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
301.3 kWh
119.3 kWh
BMW 640d Cabrio
Euro 4 III
Emission Standard
Euro 6b (NEFZ)
620 g/mi (NEFZ)
CO2 Emissions
248 g/mi (NEFZ)
Practical Convenience
Rolls-Royce Phantom Drophead Coupé 6.8 V12
BMW 640d Cabrio
2
Doors
2
4
No. of Seats
4
948 lb
Maximum Payload
959 lb
8.9 cu ft
Trunk Volume
9.9 cu ft







No data
Cargo Volume (Seats Down)
No data