The Comparative Analysis :
BMW 840i Convertible xDrive Steptronic (19 - ..) vs. BMW M6 Convertible SMG (06 - 10)
€ 105,800
€ 123,200
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 123,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The 840i Cabrio is 1.1 inches shorter, 1.9 inches wider and 1.5 inches lower than the M6 Cabrio.
840i Cabrio
M6 Cabrio
52.7
74.9
84.1
54.2
73
80.2
74.9 in
Width
73 in
84.1 in
Width Incl. Mirrors
80.2 in
52.7 in
Height
54.2 in
111.1
190.7
109.5
191.8
190.7 in
Length
191.8 in
111.1 in
Wheelbase
109.5 in
Vehicle Weight
840i Cabrio
M6 Cabrio
4310 lb
Curb Weight
4420 lb
5291 lb
Gross Vehicle
Weight
Weight
5247 lb
Weight Difference:
110 lb
2.49 %
General
840i Cabrio
M6 Cabrio
G14
Generation
E64
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
7-speed automated manual transmission (AMT)
Engine
840i Cabrio
M6 Cabrio
Straight-six gasoline engine with turbocharger
Engine Type
V10 gasoline engine (naturally aspirated engine)
BMW B58
Engine Series
BMW S85
B58-B30
Engine Code
S85-B50
4
Valves
4
6
Cylinders
10
3 L / 147 cu in
Displacement
5 L / 245 cu in
335 hp
at 5000 rpm
Power
500 hp
at 7750 rpm
840i Cabrio
335 hp
500 hp
M6 Cabrio
369 lb‑ft
at 1600 rpm
Max. Torque
384 lb‑ft
at 6100 rpm
840i Cabrio
369 lb‑ft
384 lb‑ft
M6 Cabrio
Performance
840i Cabrio
M6 Cabrio
155 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
4.8 sec
62 mph
62
mph
mph
223 ft
0.000 sec
840i Cabrio
62 mph
62
mph
mph
220 ft
0.000 sec
M6 Cabrio
▶ REPLAY
12.87 lb/hp
Weight-to-Power Ratio
8.84 lb/hp
840i Cabrio
12.87 lb/hp
8.84 lb/hp
M6 Cabrio
Fuel Economy / Emissions
840i Cabrio
M6 Cabrio
Fuel Economy
31 mpg
combined
16 mpg
840i Cabrio
31 mpg
16 mpg
M6 Cabrio
24 mpg
city
11 mpg
No data
highway
No data
18 gal
Fuel Tank Capacity
18.5 gal
549 mi
Range
296 mi
840i Cabrio
549 mi
296 mi
M6 Cabrio
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).
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).
278.4 kWh
840i Cabrio
145.8 kWh
278.4 kWh
M6 Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
330 g/mi (WLTP)
CO2 Emissions
566 g/mi (NEFZ)
Practical Convenience
840i Cabrio
M6 Cabrio
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
827 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data
