The Comparative Analysis :
BMW 840i Convertible Steptronic (19 - ..) vs. BMW M6 Convertible Competition M DKG (15 - 18)
€ 102,500
€ 148,300
€ 102,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 148,300
ⓘ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 840i Cabrio is 2.2 inches shorter, 0.1 inches wider and 0.7 inches lower than the M6 Cabrio.
840i Cabrio
M6 Cabrio
52.7
74.9
84.1
53.5
74.8
82.9
74.9 in
Width
74.8 in
84.1 in
Width Incl. Mirrors
82.9 in
52.7 in
Height
53.5 in
111.1
190.7
112.2
192.8
190.7 in
Length
192.8 in
111.1 in
Wheelbase
112.2 in
Vehicle Weight
840i Cabrio
M6 Cabrio
4200 lb
Curb Weight
4530 lb
5159 lb
Gross Vehicle
Weight
Weight
5313 lb
Weight Difference:
331 lb
7.31 %
General
840i Cabrio
M6 Cabrio
G14
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
840i Cabrio
M6 Cabrio
Straight-six gasoline engine with turbocharger
Engine Type
V8 gasoline engine with two turbochargers (biturbo)
BMW B58
Engine Series
BMW S63
B58-B30
Engine Code
S63-B44
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.4 L / 215 cu in
335 hp
at 5000 rpm
Power
592 hp
at 6000 rpm
840i Cabrio
335 hp
592 hp
M6 Cabrio
369 lb‑ft
at 1600 rpm
Max. Torque
516 lb‑ft
at 1500 rpm
840i Cabrio
369 lb‑ft
516 lb‑ft
M6 Cabrio
Performance
840i Cabrio
M6 Cabrio
155 mph
Maximum Speed
155 mph
5.3 sec
Acceleration 0 to 62 mph
4 sec
62 mph
62
mph
mph
243 ft
0.000 sec
840i Cabrio
62 mph
62
mph
mph
184 ft
0.000 sec
M6 Cabrio
▶ REPLAY
12.54 lb/hp
Weight-to-Power Ratio
7.65 lb/hp
840i Cabrio
12.54 lb/hp
7.65 lb/hp
M6 Cabrio
Fuel Economy / Emissions
840i Cabrio
M6 Cabrio
Fuel Economy
32 mpg
combined
23 mpg
840i Cabrio
32 mpg
23 mpg
M6 Cabrio
26 mpg
city
17 mpg
No data
highway
No data
18 gal
Fuel Tank Capacity
21.1 gal
571 mi
Range
483 mi
840i Cabrio
571 mi
483 mi
M6 Cabrio
Environmental Impact
140.2 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).
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).
195.2 kWh
840i Cabrio
140.2 kWh
195.2 kWh
M6 Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
311 g/mi (WLTP)
CO2 Emissions
385 g/mi (NEFZ)
Practical Convenience
840i Cabrio
M6 Cabrio
2
Doors
2
4
No. of Seats
4
959 lb
Maximum Payload
783 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data
