The Comparative Analysis :

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

€ 99,300
BMW 640d Cabrio xDrive Steptronic (15 - 18) BMW 640d Cabrio
€ 110,300
 Porsche 911 Carrera Cabriolet 4 (12 - 15) Porsche 911 Carrera Cabriolet 4
€ 99,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 110,300

ⓘ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 40.3 cm longer, 4.2 cm wider and 6.5 cm taller than the Porsche 911 Carrera Cabriolet 4.
BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
1365
Blueprint BMW 640d Cabrio xDrive Steptronic (15 - 18)
1894
2081
1300
Blueprint Porsche 911 Carrera Cabriolet 4 (12 - 15)
1852
1978
1894 mm
Width
1852 mm
2081 mm
Width Incl. Mirrors
1978 mm
1365 mm
Height
1300 mm
Blueprint BMW 640d Cabrio xDrive Steptronic (15 - 18)
2855
4894
Blueprint Porsche 911 Carrera Cabriolet 4 (12 - 15)
2450
4491
4894 mm
Length
4491 mm
2855 mm
Wheelbase
2450 mm

Vehicle Weight

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
2005 kg
Kerb Weight
1575 kg
2440 kg
Gross Vehicle
Weight
1900 kg
BMW 640d Cabrio xDrive Steptronic (15 - 18)
Weight Difference:
430 kg
21.45 %
Porsche 911 Carrera Cabriolet 4 (12 - 15)

General

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
F12
Generation
991
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Permanent all-wheel drive
8-speed automatic transmission
Transmission
7-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
3436 CC
309 bhp
at 4400 rpm
Power
345 bhp
at 7400 rpm
BMW 640d Cabrio
309 bhp
345 bhp
Porsche 911 Carrera Cabriolet 4
630 NM
at 1500 rpm
Max. Torque
390 NM
at 5600 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
175 mph
5.3 sec
Acceleration 0 to 62 mph
5.1 sec
62 mph 62
mph

74 m
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

71 m
0.000 sec

Porsche 911 Carrera Cabriolet 4

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

Fuel Economy / Emissions

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet 4
Fuel Economy
49 mpg
combined
30 mpg
BMW 640d Cabrio
49 mpg
30 mpg
Porsche 911 Carrera Cabriolet 4
42 mpg
city
21 mpg
No data
motorway
39 mpg
Kraftstoffanzeige
70 L
Fuel Tank Capacity
68 L
Kraftstoffanzeige
750 mi
Range
445 mi
BMW 640d Cabrio
750 mi
445 mi
Porsche 911 Carrera Cabriolet 4
Environmental Impact
119.3 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).
179.9 kWh
BMW 640d Cabrio
119.3 kWh
179.9 kWh
Porsche 911 Carrera Cabriolet 4
Euro 6b (NEFZ)
Emission Standard
Euro 5 / Euro 6
154 g/km (NEFZ)
CO2 Emissions
224 g/km (NEFZ)

Practical Convenience

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