The Comparative Analysis :

BMW 640d Convertible xDrive Steptronic (15 - 18) vs. Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..)

€ 99,300
BMW 640d Convertible xDrive Steptronic (15 - 18) BMW 640d Cabrio
€ 381,900
 Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..) Rolls-Royce Ghost 6.6 V12
€ 99,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 381,900

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

Vehicle Dimensions

The BMW 640d Cabrio is significantly smaller in every dimension. It's 15.4 inches shorter, 2.1 inches narrower and 5.4 inches lower than the Rolls-Royce Ghost 6.6 V12.
BMW 640d Cabrio
Rolls-Royce Ghost 6.6 V12
53.7
Blueprint BMW 640d Convertible xDrive Steptronic (15 - 18)
74.6
81.9
59.1
Blueprint Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..)
76.7
84.5
74.6 in
Width
76.7 in
81.9 in
Width Incl. Mirrors
84.5 in
53.7 in
Height
59.1 in
Blueprint BMW 640d Convertible xDrive Steptronic (15 - 18)
112.4
192.7
Blueprint Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..)
122.5
208.1
192.7 in
Length
208.1 in
112.4 in
Wheelbase
122.5 in

Vehicle Weight

BMW 640d Cabrio
Rolls-Royce Ghost 6.6 V12
4420 lb
Curb Weight
5644 lb
5379 lb
Gross Vehicle
Weight
6195 lb
BMW 640d Convertible xDrive Steptronic (15 - 18)
Weight Difference:
1224 lb
21.69 %
Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..)

General

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

Engine

BMW 640d Cabrio
Rolls-Royce Ghost 6.6 V12
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
V12 gasoline engine with two tur­bo­chargers (bi­turbo)
BMW N57
Engine Series
N57-D30
Engine Code
4
Valves
4
6
Cylinders
12
3 L / 147 cu in
Displacement
6.6 L / 323 cu in
309 hp
at 4400 rpm
Power
593 hp
at 5250 rpm
BMW 640d Cabrio
309 hp
593 hp
Rolls-Royce Ghost 6.6 V12
465 lb‑ft
at 1500 rpm
Max. Torque
620 lb‑ft
at 1650 rpm
BMW 640d Cabrio
465 lb‑ft
620 lb‑ft
Rolls-Royce Ghost 6.6 V12

Performance

BMW 640d Cabrio
Rolls-Royce Ghost 6.6 V12
155 mph
Maximum Speed
155 mph
5.3 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph 62
mph

243 ft
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

223 ft
0.000 sec

Rolls-Royce Ghost 6.6 V12

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

Fuel Economy / Emissions

BMW 640d Cabrio
Rolls-Royce Ghost 6.6 V12
Fuel Economy
41 mpg
combined
16 mpg
BMW 640d Cabrio
41 mpg
16 mpg
Rolls-Royce Ghost 6.6 V12
35 mpg
city
10 mpg
No data
highway
23 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
21.9 gal
Kraftstoffanzeige
750 mi
Range
351 mi
BMW 640d Cabrio
750 mi
351 mi
Rolls-Royce Ghost 6.6 V12
Environmental Impact
119.3 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).
278.4 kWh
BMW 640d Cabrio
119.3 kWh
278.4 kWh
Rolls-Royce Ghost 6.6 V12
Euro 6b (NEFZ)
Emission Standard
Euro 6
248 g/mi (NEFZ)
CO2 Emissions
542 g/mi (NEFZ)

Practical Convenience

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