The Comparative Analysis :

BMW 640i Convertible xDrive Automatic (13 - 13) vs. Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17)

€ 87,300
BMW 640i Convertible xDrive Automatic (13 - 13) BMW 640i Cabrio
€ 465,600
 Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17) Rolls-Royce Phantom Drophead Coupé 6.8 V12
€ 87,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 465,600

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The BMW 640i Cabrio is substantially smaller in every dimension. It's 28.3 inches shorter, 3.7 inches narrower and 7.9 inches lower than the Rolls-Royce Phantom Drophead Coupé 6.8 V12.
BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
53.7
Blueprint BMW 640i Convertible xDrive Automatic (13 - 13)
74.6
81.9
61.7
Blueprint Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17)
78.2
86.1
74.6 in
Width
78.2 in
81.9 in
Width Incl. Mirrors
86.1 in
53.7 in
Height
61.7 in
Blueprint BMW 640i Convertible xDrive Automatic (13 - 13)
112.4
192.7
Blueprint Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17)
130.7
220.9
192.7 in
Length
220.9 in
112.4 in
Wheelbase
130.7 in

Vehicle Weight

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
4376 lb
Curb Weight
5776 lb
5291 lb
Gross Vehicle
Weight
6724 lb
BMW 640i Convertible xDrive Automatic (13 - 13)
Weight Difference:
1400 lb
24.24 %
Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17)

General

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
F12
Generation
RR2
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed automatic transmission

Engine

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Straight-six gasoline engine with tur­bo­charger
Engine Type
V12 gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW N55
Engine Series
N55-B30
Engine Code
4
Valves
4
6
Cylinders
12
3 L / 147 cu in
Displacement
6.7 L / 328 cu in
316 hp
at 5800 rpm
Power
454 hp
at 5350 rpm
BMW 640i Cabrio
316 hp
454 hp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
332 lb‑ft
at 1300 rpm
Max. Torque
531 lb‑ft
at 3500 rpm
BMW 640i Cabrio
332 lb‑ft
531 lb‑ft
Rolls-Royce Phantom Drophead Coupé 6.8 V12

Performance

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
155 mph
Maximum Speed
149 mph
5.4 sec
Acceleration 0 to 62 mph
5.8 sec
62 mph 62
mph

246 ft
0.000 sec

BMW 640i Cabrio

62 mph 62
mph

266 ft
0.000 sec

Rolls-Royce Phantom Drophead Coupé 6.8 V12

▶ REPLAY
13.85 lb/hp
Weight-to-Power Ratio
12.72 lb/hp
BMW 640i Cabrio
13.85 lb/hp
12.72 lb/hp
Rolls-Royce Phantom Drophead Coupé 6.8 V12

Fuel Economy / Emissions

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Fuel Economy
29 mpg
combined
16 mpg
BMW 640i Cabrio
29 mpg
16 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
21 mpg
city
10 mpg
No data
highway
23 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
21.1 gal
Kraftstoffanzeige
531 mi
Range
336 mi
BMW 640i Cabrio
531 mi
336 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Environmental Impact
155.3 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).
280.3 kWh
BMW 640i Cabrio
155.3 kWh
280.3 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Euro 5
Emission Standard
Euro 6b (NEFZ)
309 g/mi (NEFZ)
CO2 Emissions
558 g/mi (NEFZ)

Practical Convenience

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
2
Doors
2
4
No. of Seats
4
915 lb
Maximum Payload
948 lb
9.9 cu ft
Trunk Volume
8.9 cu ft
No data
Cargo Volume (Seats Down)
No data