The Comparative Analysis :

BMW 640i Cabrio Steptronic (15 - 18) vs. Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17)

€ 91,700
BMW 640i Cabrio Steptronic (15 - 18) BMW 640i Cabrio
€ 465,600
 Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17) Rolls-Royce Phantom Drophead Coupé 6.8 V12
€ 91,700
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 71.8 cm shorter, 9.3 cm narrower and 20.1 cm lower than the Rolls-Royce Phantom Drophead Coupé 6.8 V12.
BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
1365
Blueprint BMW 640i Cabrio Steptronic (15 - 18)
1894
2081
1566
Blueprint Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17)
1987
2187
1894 mm
Width
1987 mm
2081 mm
Width Incl. Mirrors
2187 mm
1365 mm
Height
1566 mm
Blueprint BMW 640i Cabrio Steptronic (15 - 18)
2855
4894
Blueprint Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (10 - 17)
3320
5612
4894 mm
Length
5612 mm
2855 mm
Wheelbase
3320 mm

Vehicle Weight

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
1895 kg
Kerb Weight
2620 kg
2325 kg
Gross Vehicle
Weight
3050 kg
BMW 640i Cabrio Steptronic (15 - 18)
Weight Difference:
725 kg
27.67 %
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
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
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 petrol engine with tur­bo­charger
Engine Type
V12 petrol engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW N55
Engine Series
N55-B30
Engine Code
4
Valves
4
6
Cylinders
12
2979 CC
Engine Capacity
6749 CC
316 bhp
at 5800 rpm
Power
454 bhp
at 5350 rpm
BMW 640i Cabrio
316 bhp
454 bhp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
450 NM
at 1300 rpm
Max. Torque
720 NM
at 3500 rpm
BMW 640i Cabrio
450 NM
720 NM
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
5.5 sec
Acceleration 0 to 62 mph
5.8 sec
62 mph 62
mph

76 m
0.000 sec

BMW 640i Cabrio

62 mph 62
mph

81 m
0.000 sec

Rolls-Royce Phantom Drophead Coupé 6.8 V12

▶ REPLAY
6 kg/bhp
Weight-to-Power Ratio
5.77 kg/bhp
BMW 640i Cabrio
6 kg/bhp
5.77 kg/bhp
Rolls-Royce Phantom Drophead Coupé 6.8 V12

Fuel Economy / Emissions

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Fuel Economy
37 mpg
combined
19 mpg
BMW 640i Cabrio
37 mpg
19 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
26 mpg
city
12 mpg
No data
motorway
28 mpg
Kraftstoffanzeige
70 L
Fuel Tank Capacity
80 L
Kraftstoffanzeige
565 mi
Range
336 mi
BMW 640i Cabrio
565 mi
336 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Environmental Impact
145.8 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).
280.3 kWh
BMW 640i Cabrio
145.8 kWh
280.3 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
179 g/km (NEFZ)
CO2 Emissions
347 g/km (NEFZ)

Practical Convenience

BMW 640i Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
2
Doors
2
4
No. of Seats
4
430 kg
Maximum Payload
430 kg
350 L
Boot Capacity
315 L
No data
Boot Capacity (Seats Down)
No data