The Comparative Analysis :
BMW M6 Convertible M DKG (12 - 14) vs. Rolls-Royce Ghost Dawn 6.6 V12 Black Badge Automatic (17 - ..)
€ 131,400

€ 381,900

€ 131,400
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 M6 Cabrio is significantly smaller in every dimension. It's 15.2 inches shorter, 1.9 inches narrower and 5.1 inches lower than the Rolls-Royce Ghost 6.6 V12.
BMW M6 Cabrio
Rolls-Royce Ghost 6.6 V12
54
74.8
82.9
59.1
76.7
84.5
74.8 in
Width
76.7 in
82.9 in
Width Incl. Mirrors
84.5 in
54 in
Height
59.1 in
112.2
192.8
122.5
208.1
192.8 in
Length
208.1 in
112.2 in
Wheelbase
122.5 in
Vehicle Weight
BMW M6 Cabrio
Rolls-Royce Ghost 6.6 V12
4530 lb
Curb Weight
5644 lb
5313 lb
Gross Vehicle
Weight
Weight
6195 lb

Weight Difference:
1113 lb
19.72 %

General
BMW M6 Cabrio
Rolls-Royce Ghost 6.6 V12
F12
Generation
RR6
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed dual clutch transmission
Transmission
8-speed automatic transmission
Engine
BMW M6 Cabrio
Rolls-Royce Ghost 6.6 V12
V8 gasoline engine with two turbochargers (biturbo)
Engine Type
V12 gasoline engine with two turbochargers (biturbo)
BMW S63
Engine Series
S63-B44
Engine Code
4
Valves
4
8
Cylinders
12
4.4 L / 215 cu in
Displacement
6.6 L / 323 cu in
552 hp
at 6000 rpm
Power
593 hp
at 5250 rpm
BMW M6 Cabrio
552 hp
593 hp
Rolls-Royce Ghost 6.6 V12
502 lb‑ft
at 1500 rpm
Max. Torque
620 lb‑ft
at 1650 rpm
BMW M6 Cabrio
502 lb‑ft
620 lb‑ft
Rolls-Royce Ghost 6.6 V12
Performance
BMW M6 Cabrio
Rolls-Royce Ghost 6.6 V12
155 mph
Maximum Speed
155 mph
4.3 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
197 ft
0.000 sec

BMW M6 Cabrio
62 mph
62
mph
mph
223 ft
0.000 sec

Rolls-Royce Ghost 6.6 V12
▶ REPLAY
8.21 lb/hp
Weight-to-Power Ratio
9.52 lb/hp
BMW M6 Cabrio
8.21 lb/hp
9.52 lb/hp
Rolls-Royce Ghost 6.6 V12
Fuel Economy / Emissions
BMW M6 Cabrio
Rolls-Royce Ghost 6.6 V12
Fuel Economy
23 mpg
combined
16 mpg
BMW M6 Cabrio
23 mpg
16 mpg
Rolls-Royce Ghost 6.6 V12
16 mpg
city
10 mpg
No data
highway
23 mpg
21.1 gal
Fuel Tank Capacity
21.9 gal
483 mi
Range
351 mi
BMW M6 Cabrio
483 mi
351 mi
Rolls-Royce Ghost 6.6 V12
Environmental Impact
195.2 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).
278.4 kWh
BMW M6 Cabrio
195.2 kWh
278.4 kWh
Rolls-Royce Ghost 6.6 V12
Euro 5
Emission Standard
Euro 6
385 g/mi (NEFZ)
CO2 Emissions
542 g/mi (NEFZ)
Practical Convenience
BMW M6 Cabrio
Rolls-Royce Ghost 6.6 V12
2
Doors
2
4
No. of Seats
4
783 lb
Maximum Payload
551 lb
9.9 cu ft
Trunk Volume
9.1 cu ft







No data
Cargo Volume (Seats Down)
No data