The Comparative Analysis :

BMW 840i Cabrio xDrive Steptronic (19 - ..) vs. Rolls-Royce Ghost Dawn 6.6 V12 Automatic (18 - ..)

€ 105,800
BMW 840i Cabrio xDrive Steptronic (19 - ..) BMW 840i Cabrio
€ 333,200
 Rolls-Royce Ghost Dawn 6.6 V12 Automatic (18 - ..) Rolls-Royce Ghost 6.6 V12
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 333,200

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

Vehicle Dimensions

The BMW 840i Cabrio is significantly smaller in every dimension. It's 44.2 cm shorter, 4.5 cm narrower and 16.3 cm lower than the Rolls-Royce Ghost 6.6 V12.
BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
1339
Blueprint BMW 840i Cabrio xDrive Steptronic (19 - ..)
1902
2137
1502
Blueprint Rolls-Royce Ghost Dawn 6.6 V12 Automatic (18 - ..)
1947
2147
1902 mm
Width
1947 mm
2137 mm
Width Incl. Mirrors
2147 mm
1339 mm
Height
1502 mm
Blueprint BMW 840i Cabrio xDrive Steptronic (19 - ..)
2822
4843
Blueprint Rolls-Royce Ghost Dawn 6.6 V12 Automatic (18 - ..)
3112
5285
4843 mm
Length
5285 mm
2822 mm
Wheelbase
3112 mm

Vehicle Weight

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
1955 kg
Kerb Weight
2560 kg
2400 kg
Gross Vehicle
Weight
2810 kg
BMW 840i Cabrio xDrive Steptronic (19 - ..)
Weight Difference:
605 kg
23.63 %
Rolls-Royce Ghost Dawn 6.6 V12 Automatic (18 - ..)

General

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
G14
Generation
RR6
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
Straight-six petrol engine with tur­bo­charger
Engine Type
V12 petrol engine with two tur­bo­chargers (bi­turbo)
BMW B58
Engine Series
B58-B30
Engine Code
4
Valves
4
6
Cylinders
12
2998 CC
Engine Capacity
6592 CC
335 bhp
at 5000 rpm
Power
562 bhp
at 5250 rpm
BMW 840i Cabrio
335 bhp
562 bhp
Rolls-Royce Ghost 6.6 V12
500 NM
at 1600 rpm
Max. Torque
820 NM
at 1500 rpm
BMW 840i Cabrio
500 NM
820 NM
Rolls-Royce Ghost 6.6 V12

Performance

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
5 sec
62 mph 62
mph

68 m
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

69 m
0.000 sec

Rolls-Royce Ghost 6.6 V12

▶ REPLAY
5.84 kg/bhp
Weight-to-Power Ratio
4.56 kg/bhp
BMW 840i Cabrio
5.84 kg/bhp
4.56 kg/bhp
Rolls-Royce Ghost 6.6 V12

Fuel Economy / Emissions

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
Fuel Economy
37 mpg
combined
18 mpg
BMW 840i Cabrio
37 mpg
18 mpg
Rolls-Royce Ghost 6.6 V12
29 mpg
city
13 mpg
No data
motorway
23 mpg
Kraftstoffanzeige
68 L
Fuel Tank Capacity
83 L
Kraftstoffanzeige
549 mi
Range
321 mi
BMW 840i Cabrio
549 mi
321 mi
Rolls-Royce Ghost 6.6 V12
Environmental Impact
145.8 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).
305 kWh
BMW 840i Cabrio
145.8 kWh
305 kWh
Rolls-Royce Ghost 6.6 V12
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6d-TEMP
205 g/km (WLTP)
CO2 Emissions
367 g/km (NEFZ)

Practical Convenience

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
2
Doors
2
4
No. of Seats
4
445 kg
Maximum Payload
250 kg
350 L
Boot Capacity
321 L
No data
Boot Capacity (Seats Down)
No data