The Comparative Analysis :
ALPINA B6 Bi-Turbo Cabriolet Switch-Tronic (12 - 14) vs. Rolls-Royce Phantom Drophead Coupé 6.8 V12 Automatic (07 - 10)
€ 130,800

€ 450,700

€ 130,800
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 ALPINA B6 Bi-Turbo Cabriolet is substantially smaller in every dimension. It's 71.5 cm shorter, 9.3 cm narrower and 20.8 cm lower than the Rolls-Royce Phantom Drophead Coupé 6.8 V12.
ALPINA B6 Bi-Turbo Cabriolet
Rolls-Royce Phantom Drophead Coupé 6.8 V12
1373
1894
2094
1581
1987
2187
1894 mm
Width
1987 mm
2094 mm
Width Incl. Mirrors
2187 mm
1373 mm
Height
1581 mm
2855
4894
3320
5609
4894 mm
Length
5609 mm
2855 mm
Wheelbase
3320 mm
Vehicle Weight
ALPINA B6 Bi-Turbo Cabriolet
Rolls-Royce Phantom Drophead Coupé 6.8 V12
2095 kg
Kerb Weight
2620 kg
2430 kg
Gross Vehicle
Weight
Weight
3050 kg

Weight Difference:
525 kg
20.04 %

General
ALPINA B6 Bi-Turbo Cabriolet
Rolls-Royce Phantom Drophead Coupé 6.8 V12
F12
Generation
RR2
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
6-speed automatic transmission
Engine
ALPINA B6 Bi-Turbo Cabriolet
Rolls-Royce Phantom Drophead Coupé 6.8 V12
V8 petrol engine with two turbochargers (biturbo)
Engine Type
V12 petrol engine (naturally aspirated engine)
N63-M10
Engine Code
4
Valves
4
8
Cylinders
12
4395 CC
Engine Capacity
6749 CC
533 bhp
at 5200 rpm
Power
454 bhp
at 5350 rpm
ALPINA B6 Bi-Turbo Cabriolet
533 bhp
454 bhp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
730 NM
at 2800 rpm
Max. Torque
720 NM
at 3500 rpm
ALPINA B6 Bi-Turbo Cabriolet
730 NM
720 NM
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Performance
ALPINA B6 Bi-Turbo Cabriolet
Rolls-Royce Phantom Drophead Coupé 6.8 V12
197 mph
Maximum Speed
149 mph
4.4 sec
Acceleration 0 to 62 mph
5.8 sec
62 mph
62
mph
mph
61 m
0.000 sec

ALPINA B6 Bi-Turbo Cabriolet
62 mph
62
mph
mph
81 m
0.000 sec

Rolls-Royce Phantom Drophead Coupé 6.8 V12
▶ REPLAY
3.93 kg/bhp
Weight-to-Power Ratio
5.77 kg/bhp
ALPINA B6 Bi-Turbo Cabriolet
3.93 kg/bhp
5.77 kg/bhp
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Fuel Economy / Emissions
ALPINA B6 Bi-Turbo Cabriolet
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Fuel Economy
29 mpg
combined
18 mpg
ALPINA B6 Bi-Turbo Cabriolet
29 mpg
18 mpg
Rolls-Royce Phantom Drophead Coupé 6.8 V12
21 mpg
city
11 mpg
No data
motorway
26 mpg
70 L
Fuel Tank Capacity
80 L
453 mi
Range
313 mi
ALPINA B6 Bi-Turbo Cabriolet
453 mi
313 mi
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Environmental Impact
181.9 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).
301.3 kWh
ALPINA B6 Bi-Turbo Cabriolet
181.9 kWh
301.3 kWh
Rolls-Royce Phantom Drophead Coupé 6.8 V12
Euro 5
Emission Standard
Euro 4 III
224 g/km (NEFZ)
CO2 Emissions
385 g/km (NEFZ)
Practical Convenience
ALPINA B6 Bi-Turbo Cabriolet
Rolls-Royce Phantom Drophead Coupé 6.8 V12
2
Doors
2
4
No. of Seats
4
335 kg
Maximum Payload
430 kg
350 L
Boot Capacity
315 L







No data
Boot Capacity (Seats Down)
No data