The Comparative Analysis :

BMW 840i Convertible xDrive Steptronic (19 - ..) vs. Rolls-Royce Ghost Dawn 6.6 V12 Automatic (16 - 18)

€ 105,800
BMW 840i Convertible xDrive Steptronic (19 - ..) BMW 840i Cabrio
€ 333,200
 Rolls-Royce Ghost Dawn 6.6 V12 Automatic (16 - 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 17.4 inches shorter, 1.8 inches narrower and 6.4 inches lower than the Rolls-Royce Ghost 6.6 V12.
BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
52.7
Blueprint BMW 840i Convertible xDrive Steptronic (19 - ..)
74.9
84.1
59.1
Blueprint Rolls-Royce Ghost Dawn 6.6 V12 Automatic (16 - 18)
76.7
84.5
74.9 in
Width
76.7 in
84.1 in
Width Incl. Mirrors
84.5 in
52.7 in
Height
59.1 in
Blueprint BMW 840i Convertible xDrive Steptronic (19 - ..)
111.1
190.7
Blueprint Rolls-Royce Ghost Dawn 6.6 V12 Automatic (16 - 18)
122.5
208.1
190.7 in
Length
208.1 in
111.1 in
Wheelbase
122.5 in

Vehicle Weight

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
4310 lb
Curb Weight
5644 lb
5291 lb
Gross Vehicle
Weight
6195 lb
BMW 840i Convertible xDrive Steptronic (19 - ..)
Weight Difference:
1334 lb
23.64 %
Rolls-Royce Ghost Dawn 6.6 V12 Automatic (16 - 18)

General

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

Engine

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
Straight-six gasoline engine with tur­bo­charger
Engine Type
V12 gasoline engine with two tur­bo­chargers (bi­turbo)
BMW B58
Engine Series
B58-B30
Engine Code
4
Valves
4
6
Cylinders
12
3 L / 147 cu in
Displacement
6.6 L / 323 cu in
335 hp
at 5000 rpm
Power
562 hp
at 5600 rpm
BMW 840i Cabrio
335 hp
562 hp
Rolls-Royce Ghost 6.6 V12
369 lb‑ft
at 1600 rpm
Max. Torque
575 lb‑ft
at 1400 rpm
BMW 840i Cabrio
369 lb‑ft
575 lb‑ft
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
4.9 sec
62 mph 62
mph

223 ft
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

223 ft
0.000 sec

Rolls-Royce Ghost 6.6 V12

▶ REPLAY
12.87 lb/hp
Weight-to-Power Ratio
10.04 lb/hp
BMW 840i Cabrio
12.87 lb/hp
10.04 lb/hp
Rolls-Royce Ghost 6.6 V12

Fuel Economy / Emissions

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
Fuel Economy
31 mpg
combined
16 mpg
BMW 840i Cabrio
31 mpg
16 mpg
Rolls-Royce Ghost 6.6 V12
24 mpg
city
11 mpg
No data
highway
24 mpg
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
21.9 gal
Kraftstoffanzeige
549 mi
Range
358 mi
BMW 840i Cabrio
549 mi
358 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).
272.8 kWh
BMW 840i Cabrio
145.8 kWh
272.8 kWh
Rolls-Royce Ghost 6.6 V12
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
330 g/mi (WLTP)
CO2 Emissions
531 g/mi (NEFZ)

Practical Convenience

BMW 840i Cabrio
Rolls-Royce Ghost 6.6 V12
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
551 lb
9.9 cu ft
Trunk Volume
9.1 cu ft
No data
Cargo Volume (Seats Down)
No data