The Comparative Analysis :

BMW 650i Convertible xDrive Steptronic (15 - 18) vs. BMW 840i Convertible Steptronic (19 - ..)

€ 106,700
BMW 650i Convertible xDrive Steptronic (15 - 18) 650i Cabrio
€ 102,500
 BMW 840i Convertible Steptronic (19 - ..) 840i Cabrio
€ 106,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 102,500

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

Vehicle Dimensions

The dimensions of these vehicles differ a little. The 650i Cabrio is 2 inches longer, 0.3 inches narrower and an inch taller than the 840i Cabrio.
650i Cabrio
840i Cabrio
53.7
Blueprint BMW 650i Convertible xDrive Steptronic (15 - 18)
74.6
81.9
52.7
Blueprint BMW 840i Convertible Steptronic (19 - ..)
74.9
84.1
74.6 in
Width
74.9 in
81.9 in
Width Incl. Mirrors
84.1 in
53.7 in
Height
52.7 in
Blueprint BMW 650i Convertible xDrive Steptronic (15 - 18)
112.4
192.7
Blueprint BMW 840i Convertible Steptronic (19 - ..)
111.1
190.7
192.7 in
Length
190.7 in
112.4 in
Wheelbase
111.1 in

Vehicle Weight

650i Cabrio
840i Cabrio
4530 lb
Curb Weight
4200 lb
5467 lb
Gross Vehicle
Weight
5159 lb
BMW 650i Convertible xDrive Steptronic (15 - 18)
Weight Difference:
331 lb
7.31 %
BMW 840i Convertible Steptronic (19 - ..)

General

650i Cabrio
840i Cabrio
F12
Generation
G14
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

650i Cabrio
840i Cabrio
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six gasoline engine with tur­bo­charger
BMW N63
Engine Series
BMW B58
N63-B44
Engine Code
B58-B30
4
Valves
4
8
Cylinders
6
4.4 L / 215 cu in
Displacement
3 L / 147 cu in
444 hp
at 5500 rpm
Power
335 hp
at 5000 rpm
650i Cabrio
444 hp
335 hp
840i Cabrio
479 lb‑ft
at 2000 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
650i Cabrio
479 lb‑ft
369 lb‑ft
840i Cabrio

Performance

650i Cabrio
840i Cabrio
155 mph
Maximum Speed
155 mph
4.5 sec
Acceleration 0 to 62 mph
5.3 sec
62 mph 62
mph

207 ft
0.000 sec

650i Cabrio

62 mph 62
mph

243 ft
0.000 sec

840i Cabrio

▶ REPLAY
10.2 lb/hp
Weight-to-Power Ratio
12.54 lb/hp
650i Cabrio
10.2 lb/hp
12.54 lb/hp
840i Cabrio

Fuel Economy / Emissions

650i Cabrio
840i Cabrio
Fuel Economy
25 mpg
combined
32 mpg
650i Cabrio
25 mpg
32 mpg
840i Cabrio
18 mpg
city
26 mpg
No data
highway
No data
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
18 gal
Kraftstoffanzeige
468 mi
Range
571 mi
650i Cabrio
468 mi
571 mi
840i Cabrio
Environmental Impact
176.2 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).
140.2 kWh
650i Cabrio
176.2 kWh
140.2 kWh
840i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
349 g/mi (NEFZ)
CO2 Emissions
311 g/mi (WLTP)

Practical Convenience

650i Cabrio
840i Cabrio
2
Doors
2
4
No. of Seats
4
937 lb
Maximum Payload
959 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data