The Comparative Analysis :

BMW 640i Cabrio Steptronic (15 - 18) vs. Porsche 911 Carrera Cabriolet PDK (19 - ..)

€ 91,700
BMW 640i Cabrio Steptronic (15 - 18) BMW 640i Cabrio
€ 118,900
 Porsche 911 Carrera Cabriolet PDK (19 - ..) Porsche 911 Carrera Cabriolet
€ 91,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 118,900

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

Vehicle Dimensions

The BMW 640i Cabrio is considerably bigger in every dimension. It's 37.5 cm longer, 4.2 cm wider and 6.8 cm taller than the Porsche 911 Carrera Cabriolet.
BMW 640i Cabrio
Porsche 911 Carrera Cabriolet
1365
Blueprint BMW 640i Cabrio Steptronic (15 - 18)
1894
2081
1297
Blueprint Porsche 911 Carrera Cabriolet PDK (19 - ..)
1852
2024
1894 mm
Width
1852 mm
2081 mm
Width Incl. Mirrors
2024 mm
1365 mm
Height
1297 mm
Blueprint BMW 640i Cabrio Steptronic (15 - 18)
2855
4894
Blueprint Porsche 911 Carrera Cabriolet PDK (19 - ..)
2450
4519
4894 mm
Length
4519 mm
2855 mm
Wheelbase
2450 mm

Vehicle Weight

BMW 640i Cabrio
Porsche 911 Carrera Cabriolet
1895 kg
Kerb Weight
1650 kg
2325 kg
Gross Vehicle
Weight
2015 kg
BMW 640i Cabrio Steptronic (15 - 18)
Weight Difference:
245 kg
12.93 %
Porsche 911 Carrera Cabriolet PDK (19 - ..)

General

BMW 640i Cabrio
Porsche 911 Carrera Cabriolet
F12
Generation
992
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
8-speed dual clutch transmission

Engine

BMW 640i Cabrio
Porsche 911 Carrera Cabriolet
Straight-six petrol engine with tur­bo­charger
Engine Type
6-cylinder boxer petrol engine with two tur­bo­chargers (bi­turbo)
BMW N55
Engine Series
N55-B30
Engine Code
4
Valves
4
6
Cylinders
6
2979 CC
Engine Capacity
2981 CC
316 bhp
at 5800 rpm
Power
380 bhp
at 6500 rpm
BMW 640i Cabrio
316 bhp
380 bhp
Porsche 911 Carrera Cabriolet
450 NM
at 1300 rpm
Max. Torque
450 NM
at 1950 rpm
BMW 640i Cabrio
450 NM
450 NM
Porsche 911 Carrera Cabriolet

Performance

BMW 640i Cabrio
Porsche 911 Carrera Cabriolet
155 mph
Maximum Speed
181 mph
5.5 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph 62
mph

76 m
0.000 sec

BMW 640i Cabrio

62 mph 62
mph

61 m
0.000 sec

Porsche 911 Carrera Cabriolet

▶ REPLAY
6 kg/bhp
Weight-to-Power Ratio
4.34 kg/bhp
BMW 640i Cabrio
6 kg/bhp
4.34 kg/bhp
Porsche 911 Carrera Cabriolet

Fuel Economy / Emissions

BMW 640i Cabrio
Porsche 911 Carrera Cabriolet
Fuel Economy
37 mpg
combined
31 mpg
BMW 640i Cabrio
37 mpg
31 mpg
Porsche 911 Carrera Cabriolet
26 mpg
city
25 mpg
No data
motorway
36 mpg
Kraftstoffanzeige
70 L
Fuel Tank Capacity
64 L
Kraftstoffanzeige
565 mi
Range
432 mi
BMW 640i Cabrio
565 mi
432 mi
Porsche 911 Carrera Cabriolet
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).
174.3 kWh
BMW 640i Cabrio
145.8 kWh
174.3 kWh
Porsche 911 Carrera Cabriolet
Euro 6b (NEFZ)
Emission Standard
Euro 6d
179 g/km (NEFZ)
CO2 Emissions
231 g/km (WLTP)

Practical Convenience

BMW 640i Cabrio
Porsche 911 Carrera Cabriolet
2
Doors
2
4
No. of Seats
4
430 kg
Maximum Payload
365 kg
350 L
Boot Capacity
132 L
No data
Boot Capacity (Seats Down)
No data