The Comparative Analysis :

BMW M6 Convertible M DKG (15 - 18) vs. BMW 640i Convertible Steptronic (13 - 14)

€ 138,800
BMW M6 Convertible M DKG (15 - 18) M6 Cabrio
€ 83,900
 BMW 640i Convertible Steptronic (13 - 14) 640i Cabrio
€ 138,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 83,900

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

Vehicle Dimensions

The M6 Cabrio is a bit bigger in every dimension. It's 0.2 inches longer, 0.2 inches wider and 0.1 inches taller than the 640i Cabrio.
M6 Cabrio
640i Cabrio
53.9
Blueprint BMW M6 Convertible M DKG (15 - 18)
74.8
82.9
53.7
Blueprint BMW 640i Convertible Steptronic (13 - 14)
74.6
81.9
74.8 in
Width
74.6 in
82.9 in
Width Incl. Mirrors
81.9 in
53.9 in
Height
53.7 in
Blueprint BMW M6 Convertible M DKG (15 - 18)
112.2
192.8
Blueprint BMW 640i Convertible Steptronic (13 - 14)
112.4
192.7
192.8 in
Length
192.7 in
112.2 in
Wheelbase
112.4 in

Vehicle Weight

M6 Cabrio
640i Cabrio
4530 lb
Curb Weight
4222 lb
5313 lb
Gross Vehicle
Weight
5049 lb
BMW M6 Convertible M DKG (15 - 18)
Weight Difference:
309 lb
6.82 %
BMW 640i Convertible Steptronic (13 - 14)

General

M6 Cabrio
640i Cabrio
F12
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
7-speed dual clutch transmission
Transmission
8-speed automatic transmission

Engine

M6 Cabrio
640i Cabrio
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six gasoline engine with tur­bo­charger
BMW S63
Engine Series
BMW N55
S63-B44
Engine Code
N55-B30
4
Valves
4
8
Cylinders
6
4.4 L / 215 cu in
Displacement
3 L / 147 cu in
552 hp
at 6000 rpm
Power
316 hp
at 5800 rpm
M6 Cabrio
552 hp
316 hp
640i Cabrio
502 lb‑ft
at 1500 rpm
Max. Torque
332 lb‑ft
at 1300 rpm
M6 Cabrio
502 lb‑ft
332 lb‑ft
640i Cabrio

Performance

M6 Cabrio
640i Cabrio
155 mph
Maximum Speed
155 mph
4.3 sec
Acceleration 0 to 62 mph
5.7 sec
62 mph 62
mph

197 ft
0.000 sec

M6 Cabrio

62 mph 62
mph

259 ft
0.000 sec

640i Cabrio

▶ REPLAY
8.21 lb/hp
Weight-to-Power Ratio
13.36 lb/hp
M6 Cabrio
8.21 lb/hp
13.36 lb/hp
640i Cabrio

Fuel Economy / Emissions

M6 Cabrio
640i Cabrio
Fuel Economy
23 mpg
combined
30 mpg
M6 Cabrio
23 mpg
30 mpg
640i Cabrio
17 mpg
city
22 mpg
No data
highway
No data
Kraftstoffanzeige
21.1 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
483 mi
Range
557 mi
M6 Cabrio
483 mi
557 mi
640i Cabrio
Environmental Impact
195.2 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).
147.7 kWh
M6 Cabrio
195.2 kWh
147.7 kWh
640i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
385 g/mi (NEFZ)
CO2 Emissions
291 g/mi (NEFZ)

Practical Convenience

M6 Cabrio
640i Cabrio
2
Doors
2
4
No. of Seats
4
783 lb
Maximum Payload
827 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data