The Comparative Analysis :

BMW 640d Cabrio Steptronic (15 - 18) vs. Porsche 911 Carrera Cabriolet 4 (08 - 12)

€ 95,900
BMW 640d Cabrio Steptronic (15 - 18) BMW 640d Cabrio
€ 103,600
 Porsche 911 Carrera Cabriolet 4 (08 - 12) Porsche 911 Carrera Cabriolet 4
€ 95,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 103,600

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

Vehicle Dimensions

The BMW 640d Cabrio is significantly bigger in every dimension. It's 45.9 cm longer, 4.2 cm wider and 5.5 cm taller than the Porsche 911 Carrera Cabriolet 4.
BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
1365
Blueprint BMW 640d Cabrio Steptronic (15 - 18)
1894
2081
1310
Blueprint Porsche 911 Carrera Cabriolet 4 (08 - 12)
1852
2052
1894 mm
Width
1852 mm
2081 mm
Width Incl. Mirrors
2052 mm
1365 mm
Height
1310 mm
Blueprint BMW 640d Cabrio Steptronic (15 - 18)
2855
4894
Blueprint Porsche 911 Carrera Cabriolet 4 (08 - 12)
2350
4435
4894 mm
Length
4435 mm
2855 mm
Wheelbase
2350 mm

Vehicle Weight

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
1935 kg
Kerb Weight
1630 kg
2365 kg
Gross Vehicle
Weight
1930 kg
BMW 640d Cabrio Steptronic (15 - 18)
Weight Difference:
305 kg
15.76 %
Porsche 911 Carrera Cabriolet 4 (08 - 12)

General

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
F12
Generation
997
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Permanent all-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer petrol engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW N57
Engine Series
N57-D30
Engine Code
4
Valves
4
6
Cylinders
6
2993 CC
Engine Capacity
3614 CC
309 bhp
at 4400 rpm
Power
340 bhp
at 6500 rpm
BMW 640d Cabrio
309 bhp
340 bhp
Porsche 911 Carrera Cabriolet 4
630 NM
at 1500 rpm
Max. Torque
390 NM
at 4400 rpm
BMW 640d Cabrio
630 NM
390 NM
Porsche 911 Carrera Cabriolet 4

Performance

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
155 mph
Maximum Speed
176 mph
5.5 sec
Acceleration 0 to 62 mph
5.2 sec
62 mph 62
mph

76 m
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

72 m
0.000 sec

Porsche 911 Carrera Cabriolet 4

▶ REPLAY
6.26 kg/bhp
Weight-to-Power Ratio
4.79 kg/bhp
BMW 640d Cabrio
6.26 kg/bhp
4.79 kg/bhp
Porsche 911 Carrera Cabriolet 4

Fuel Economy / Emissions

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
Fuel Economy
50 mpg
combined
26 mpg
BMW 640d Cabrio
50 mpg
26 mpg
Porsche 911 Carrera Cabriolet 4
43 mpg
city
17 mpg
No data
motorway
37 mpg
Kraftstoffanzeige
70 L
Fuel Tank Capacity
67 L
Kraftstoffanzeige
777 mi
Range
385 mi
BMW 640d Cabrio
777 mi
385 mi
Porsche 911 Carrera Cabriolet 4
Environmental Impact
115.2 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).
204.5 kWh
BMW 640d Cabrio
115.2 kWh
204.5 kWh
Porsche 911 Carrera Cabriolet 4
Euro 6b (NEFZ)
Emission Standard
Euro 5
149 g/km (NEFZ)
CO2 Emissions
254 g/km (NEFZ)

Practical Convenience

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