The Comparative Analysis :

BMW 640i Convertible xDrive Automatic (13 - 13) vs. BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)

€ 87,300
BMW 640i Convertible xDrive Automatic (13 - 13) 640i Cabrio
€ 176,000
 BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..) M8 Competition Cabrio
€ 87,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 176,000

ⓘ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 640i Cabrio is 1.1 inches longer, 0.5 inches narrower and 0.5 inches taller than the M8 Competition Cabrio.
640i Cabrio
M8 Competition Cabrio
53.7
Blueprint BMW 640i Convertible xDrive Automatic (13 - 13)
74.6
81.9
53.3
Blueprint BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)
75.1
84.1
74.6 in
Width
75.1 in
81.9 in
Width Incl. Mirrors
84.1 in
53.7 in
Height
53.3 in
Blueprint BMW 640i Convertible xDrive Automatic (13 - 13)
112.4
192.7
Blueprint BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)
111.3
191.6
192.7 in
Length
191.6 in
112.4 in
Wheelbase
111.3 in

Vehicle Weight

640i Cabrio
M8 Competition Cabrio
4376 lb
Curb Weight
4597 lb
5291 lb
Gross Vehicle
Weight
5379 lb
BMW 640i Convertible xDrive Automatic (13 - 13)
Weight Difference:
220 lb
4.79 %
BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)

General

640i Cabrio
M8 Competition Cabrio
F12
Generation
G14
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

640i Cabrio
M8 Competition Cabrio
Straight-six gasoline engine with tur­bo­charger
Engine Type
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
BMW N55
Engine Series
BMW S63
N55-B30
Engine Code
S63-B44
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.4 L / 215 cu in
316 hp
at 5800 rpm
Power
616 hp
at 6000 rpm
640i Cabrio
316 hp
616 hp
M8 Competition Cabrio
332 lb‑ft
at 1300 rpm
Max. Torque
553 lb‑ft
at 1800 rpm
640i Cabrio
332 lb‑ft
553 lb‑ft
M8 Competition Cabrio

Performance

640i Cabrio
M8 Competition Cabrio
155 mph
Maximum Speed
155 mph
5.4 sec
Acceleration 0 to 62 mph
3.3 sec
62 mph 62
mph

246 ft
0.000 sec

640i Cabrio

62 mph 62
mph

151 ft
0.000 sec

M8 Competition Cabrio

▶ REPLAY
13.85 lb/hp
Weight-to-Power Ratio
7.46 lb/hp
640i Cabrio
13.85 lb/hp
7.46 lb/hp
M8 Competition Cabrio

Fuel Economy / Emissions

640i Cabrio
M8 Competition Cabrio
Fuel Economy
29 mpg
combined
22 mpg
640i Cabrio
29 mpg
22 mpg
M8 Competition Cabrio
21 mpg
city
No data
No data
highway
No data
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
18 gal
Kraftstoffanzeige
531 mi
Range
391 mi
640i Cabrio
531 mi
391 mi
M8 Competition Cabrio
Environmental Impact
155.3 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).
204.5 kWh
640i Cabrio
155.3 kWh
204.5 kWh
M8 Competition Cabrio
Euro 5
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
309 g/mi (NEFZ)
CO2 Emissions
410 g/mi (WLTP)

Practical Convenience

640i Cabrio
M8 Competition Cabrio
2
Doors
2
4
No. of Seats
4
915 lb
Maximum Payload
783 lb
9.9 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data