The Comparative Analysis :
Porsche 911 Carrera Cabriolet S (12 - 15) vs. BMW 640i Cabrio Steptronic (15 - 18)
€ 117,900
€ 91,700
€ 117,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Porsche 911 Carrera Cabriolet S is significantly smaller in every dimension. It's 40.3 cm shorter, 8.6 cm narrower and 7.3 cm lower than the BMW 640i Cabrio.
Porsche 911 Carrera Cabriolet S
BMW 640i Cabrio
1292
1808
1978
1365
1894
2081
1808 mm
Width
1894 mm
1978 mm
Width Incl. Mirrors
2081 mm
1292 mm
Height
1365 mm
2450
4491
2855
4894
4491 mm
Length
4894 mm
2450 mm
Wheelbase
2855 mm
Vehicle Weight
Porsche 911 Carrera Cabriolet S
BMW 640i Cabrio
1540 kg
Kerb Weight
1895 kg
1885 kg
Gross Vehicle
Weight
Weight
2325 kg
Weight Difference:
355 kg
18.73 %
General
Porsche 911 Carrera Cabriolet S
BMW 640i Cabrio
991
Generation
F12
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
7-speed manual transmission
Transmission
8-speed automatic transmission
Engine
Porsche 911 Carrera Cabriolet S
BMW 640i Cabrio
6-cylinder boxer petrol engine (naturally aspirated engine)
Engine Type
Straight-six petrol engine with turbocharger
Engine Series
BMW N55
Engine Code
N55-B30
4
Valves
4
6
Cylinders
6
3800 CC
Engine Capacity
2979 CC
395 bhp
at 7400 rpm
Power
316 bhp
at 5800 rpm
Porsche 911 Carrera Cabriolet S
395 bhp
316 bhp
BMW 640i Cabrio
440 NM
at 5600 rpm
Max. Torque
450 NM
at 1300 rpm
Porsche 911 Carrera Cabriolet S
440 NM
450 NM
BMW 640i Cabrio
Performance
Porsche 911 Carrera Cabriolet S
BMW 640i Cabrio
187 mph
Maximum Speed
155 mph
4.7 sec
Acceleration 0 to 62 mph
5.5 sec
62 mph
62
mph
mph
65 m
0.000 sec
Porsche 911 Carrera Cabriolet S
62 mph
62
mph
mph
76 m
0.000 sec
BMW 640i Cabrio
▶ REPLAY
3.9 kg/bhp
Weight-to-Power Ratio
6 kg/bhp
Porsche 911 Carrera Cabriolet S
3.9 kg/bhp
6 kg/bhp
BMW 640i Cabrio
Fuel Economy / Emissions
Porsche 911 Carrera Cabriolet S
BMW 640i Cabrio
Fuel Economy
29 mpg
combined
37 mpg
Porsche 911 Carrera Cabriolet S
29 mpg
37 mpg
BMW 640i Cabrio
20 mpg
city
26 mpg
39 mpg
motorway
No data
64 L
Fuel Tank Capacity
70 L
410 mi
Range
565 mi
Porsche 911 Carrera Cabriolet S
410 mi
565 mi
BMW 640i Cabrio
Environmental Impact
183.8 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).
145.8 kWh
Porsche 911 Carrera Cabriolet S
183.8 kWh
145.8 kWh
BMW 640i Cabrio
Euro 5 / Euro 6
Emission Standard
Euro 6b (NEFZ)
229 g/km (NEFZ)
CO2 Emissions
179 g/km (NEFZ)
Practical Convenience
Porsche 911 Carrera Cabriolet S
BMW 640i Cabrio
2
Doors
2
4
No. of Seats
4
345 kg
Maximum Payload
430 kg
145 L
Boot Capacity
350 L
No data
Boot Capacity (Seats Down)
No data
