The Comparative Analysis :

Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..) vs. BMW 640i Convertible xDrive Steptronic (13 - 14)

€ 381,900
Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..) Rolls-Royce Ghost 6.6 V12
€ 87,300
 BMW 640i Convertible xDrive Steptronic (13 - 14) BMW 640i Cabrio
€ 381,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 87,300

ⓘ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 15.4 inches longer, 2.1 inches wider and 5.4 inches taller than the BMW 640i Cabrio.
Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
59.1
Blueprint Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..)
76.7
84.5
53.7
Blueprint BMW 640i Convertible xDrive Steptronic (13 - 14)
74.6
81.9
76.7 in
Width
74.6 in
84.5 in
Width Incl. Mirrors
81.9 in
59.1 in
Height
53.7 in
Blueprint Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..)
122.5
208.1
Blueprint BMW 640i Convertible xDrive Steptronic (13 - 14)
112.4
192.7
208.1 in
Length
192.7 in
122.5 in
Wheelbase
112.4 in

Vehicle Weight

Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
5644 lb
Curb Weight
4376 lb
6195 lb
Gross Vehicle
Weight
5291 lb
Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..)
Weight Difference:
1268 lb
22.47 %
BMW 640i Convertible xDrive Steptronic (13 - 14)

General

Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
RR6
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
V12 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six gasoline engine with tur­bo­charger
Engine Series
BMW N55
Engine Code
N55-B30
4
Valves
4
12
Cylinders
6
6.6 L / 323 cu in
Displacement
3 L / 147 cu in
593 hp
at 5250 rpm
Power
316 hp
at 5800 rpm
Rolls-Royce Ghost 6.6 V12
593 hp
316 hp
BMW 640i Cabrio
620 lb‑ft
at 1650 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
Rolls-Royce Ghost 6.6 V12
620 lb‑ft
332 lb‑ft
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
5.4 sec
62 mph 62
mph

223 ft
0.000 sec

Rolls-Royce Ghost 6.6 V12

62 mph 62
mph

246 ft
0.000 sec

BMW 640i Cabrio

▶ REPLAY
9.52 lb/hp
Weight-to-Power Ratio
13.85 lb/hp
Rolls-Royce Ghost 6.6 V12
9.52 lb/hp
13.85 lb/hp
BMW 640i Cabrio

Fuel Economy / Emissions

Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
Fuel Economy
16 mpg
combined
29 mpg
Rolls-Royce Ghost 6.6 V12
16 mpg
29 mpg
BMW 640i Cabrio
10 mpg
city
21 mpg
23 mpg
highway
No data
Kraftstoffanzeige
21.9 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
351 mi
Range
531 mi
Rolls-Royce Ghost 6.6 V12
351 mi
531 mi
BMW 640i Cabrio
Environmental Impact
278.4 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).
155.3 kWh
Rolls-Royce Ghost 6.6 V12
278.4 kWh
155.3 kWh
BMW 640i Cabrio
Euro 6
Emission Standard
Euro 6b (NEFZ)
542 g/mi (NEFZ)
CO2 Emissions
309 g/mi (NEFZ)

Practical Convenience

Rolls-Royce Ghost 6.6 V12
BMW 640i Cabrio
2
Doors
2
4
No. of Seats
4
551 lb
Maximum Payload
915 lb
9.1 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data