The Comparative Analysis :
Rolls-Royce Ghost Dawn 6.6 V12 Automatic (16 - 18) vs. BMW 640i Cabrio Automatic (11 - 13)
€ 333,200

€ 83,900

€ 333,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 83,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Rolls-Royce Ghost 6.6 V12 is significantly bigger in every dimension. It's 39.1 cm longer, 5.3 cm wider and 13.7 cm taller than the BMW 640i Cabrio.
Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
1502
1947
2147
1365
1894
2081
1947 mm
Width
1894 mm
2147 mm
Width Incl. Mirrors
2081 mm
1502 mm
Height
1365 mm
3112
5285
2855
4894
5285 mm
Length
4894 mm
3112 mm
Wheelbase
2855 mm
Vehicle Weight
Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
2560 kg
Kerb Weight
1915 kg
2810 kg
Gross Vehicle
Weight
Weight
2290 kg

Weight Difference:
645 kg
25.2 %

General
Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
RR6
Generation
F12
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
8-speed automatic transmission
Engine
Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
V12 petrol engine with two turbochargers (biturbo)
Engine Type
Straight-six petrol engine with turbocharger
Engine Series
BMW N55
Engine Code
N55-B30

4
Valves
4
12
Cylinders
6
6592 CC
Engine Capacity
2979 CC
562 bhp
at 5600 rpm
Power
316 bhp
at 5800 rpm
Rolls-Royce Ghost 6.6 V12
562 bhp
316 bhp
BMW 640i Cabrio
780 NM
at 1400 rpm
Max. Torque
450 NM
at 1300 rpm
Rolls-Royce Ghost 6.6 V12
780 NM
450 NM
BMW 640i Cabrio
Performance
Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
5.7 sec
62 mph
62
mph
mph
68 m
0.000 sec

Rolls-Royce Ghost 6.6 V12
62 mph
62
mph
mph
79 m
0.000 sec

BMW 640i Cabrio
▶ REPLAY
4.56 kg/bhp
Weight-to-Power Ratio
6.06 kg/bhp
Rolls-Royce Ghost 6.6 V12
4.56 kg/bhp
6.06 kg/bhp
BMW 640i Cabrio
Fuel Economy / Emissions
Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
Fuel Economy
20 mpg
combined
36 mpg
Rolls-Royce Ghost 6.6 V12
20 mpg
36 mpg
BMW 640i Cabrio
13 mpg
city
26 mpg
28 mpg
motorway
No data
83 L
Fuel Tank Capacity
70 L
358 mi
Range
557 mi
Rolls-Royce Ghost 6.6 V12
358 mi
557 mi
BMW 640i Cabrio
Environmental Impact
272.8 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).
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).
147.7 kWh
Rolls-Royce Ghost 6.6 V12
272.8 kWh
147.7 kWh
BMW 640i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 5
330 g/km (NEFZ)
CO2 Emissions
181 g/km (NEFZ)
Practical Convenience
Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
2
Doors
2
4
No. of Seats
4
250 kg
Maximum Payload
375 kg
321 L
Boot Capacity
350 L







No data
Boot Capacity (Seats Down)
No data