The Comparative Analysis :

BMW M6 Convertible SMG (06 - 10) vs. Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10)

€ 123,200
BMW M6 Convertible SMG (06 - 10) BMW M6 Cabrio
€ 450,700
 Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10) Rolls-Royce Phantom Drophead Coupé 6.8 V12
€ 123,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 450,700

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

Vehicle Dimensions

The BMW M6 Cabrio is substantially smaller in every dimension. It's 29.1 inches shorter, 5.2 inches narrower and 8 inches lower than the Rolls-Royce Phantom Drophead Coupé 6.8 V12.
BMW M6 Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
54.2
Blueprint BMW M6 Convertible SMG (06 - 10)
73
80.2
62.2
Blueprint Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10)
78.2
86.1
73 in
Width
78.2 in
80.2 in
Width Incl. Mirrors
86.1 in
54.2 in
Height
62.2 in
Blueprint BMW M6 Convertible SMG (06 - 10)
109.5
191.8
Blueprint Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10)
130.7
220.8
191.8 in
Length
220.8 in
109.5 in
Wheelbase
130.7 in

Vehicle Weight

BMW M6 Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
4420 lb
Curb Weight
5776 lb
5247 lb
Gross Vehicle
Weight
6724 lb
BMW M6 Convertible SMG (06 - 10)
Weight Difference:
1356 lb
23.48 %
Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10)

General

BMW M6 Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
E64
Generation
RR2
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed automated manual transmission (AMT)
Transmission
6-speed automatic transmission

Engine

BMW M6 Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
V10 gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
Engine Type
V12 gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW S85
Engine Series
S85-B50
Engine Code
4
Valves
4
10
Cylinders
12
5 L / 245 cu in
Displacement
6.7 L / 328 cu in
500 hp
at 7750 rpm
Power
454 hp
at 5350 rpm
BMW M6 Cabrio
500 hp
454 hp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
384 lb‑ft
at 6100 rpm
Max. Torque
531 lb‑ft
at 3500 rpm
BMW M6 Cabrio
384 lb‑ft
531 lb‑ft
Rolls-Royce Phantom Drophead Coupé 6.8 V12

Performance

BMW M6 Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
155 mph
Maximum Speed
149 mph
4.8 sec
Acceleration 0 to 62 mph
5.8 sec
62 mph 62
mph

220 ft
0.000 sec

BMW M6 Cabrio

62 mph 62
mph

266 ft
0.000 sec

Rolls-Royce Phantom Drophead Coupé 6.8 V12

▶ REPLAY
8.84 lb/hp
Weight-to-Power Ratio
12.72 lb/hp
BMW M6 Cabrio
8.84 lb/hp
12.72 lb/hp
Rolls-Royce Phantom Drophead Coupé 6.8 V12

Fuel Economy / Emissions

BMW M6 Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Fuel Economy
16 mpg
combined
15 mpg
BMW M6 Cabrio
16 mpg
15 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
11 mpg
city
10 mpg
No data
highway
21 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
21.1 gal
Kraftstoffanzeige
296 mi
Range
313 mi
BMW M6 Cabrio
296 mi
313 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
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).
301.3 kWh
BMW M6 Cabrio
278.4 kWh
301.3 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Euro 4
Emission Standard
Euro 4 III
566 g/mi (NEFZ)
CO2 Emissions
620 g/mi (NEFZ)

Practical Convenience

BMW M6 Cabrio
Rolls-Royce Phantom Drophead Coupé 6.8 V12
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
948 lb
9.9 cu ft
Trunk Volume
8.9 cu ft
No data
Cargo Volume (Seats Down)
No data