The Comparative Analysis :

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

€ 99,300
BMW 640d Cabrio xDrive Steptronic (15 - 18) BMW 640d Cabrio
€ 114,500
 Porsche 911 Carrera Cabriolet PDK (15 - 18) Porsche 911 Carrera Cabriolet
€ 99,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 114,500

ⓘ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 39.5 cm longer, 8.6 cm wider and 7.6 cm taller than the Porsche 911 Carrera Cabriolet.
BMW 640d Cabrio
Porsche 911 Carrera Cabriolet
1365
Blueprint BMW 640d Cabrio xDrive Steptronic (15 - 18)
1894
2081
1289
Blueprint Porsche 911 Carrera Cabriolet PDK (15 - 18)
1808
1978
1894 mm
Width
1808 mm
2081 mm
Width Incl. Mirrors
1978 mm
1365 mm
Height
1289 mm
Blueprint BMW 640d Cabrio xDrive Steptronic (15 - 18)
2855
4894
Blueprint Porsche 911 Carrera Cabriolet PDK (15 - 18)
2450
4499
4894 mm
Length
4499 mm
2855 mm
Wheelbase
2450 mm

Vehicle Weight

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet
2005 kg
Kerb Weight
1595 kg
2440 kg
Gross Vehicle
Weight
1940 kg
BMW 640d Cabrio xDrive Steptronic (15 - 18)
Weight Difference:
410 kg
20.45 %
Porsche 911 Carrera Cabriolet PDK (15 - 18)

General

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet
F12
Generation
991
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed dual clutch transmission

Engine

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer petrol engine with two tur­bo­chargers (bi­turbo)
BMW N57
Engine Series
N57-D30
Engine Code
4
Valves
4
6
Cylinders
6
2993 CC
Engine Capacity
2981 CC
309 bhp
at 4400 rpm
Power
365 bhp
at 6500 rpm
BMW 640d Cabrio
309 bhp
365 bhp
Porsche 911 Carrera Cabriolet
630 NM
at 1500 rpm
Max. Torque
450 NM
at 1700 rpm
BMW 640d Cabrio
630 NM
450 NM
Porsche 911 Carrera Cabriolet

Performance

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet
155 mph
Maximum Speed
180 mph
5.3 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph 62
mph

74 m
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

64 m
0.000 sec

Porsche 911 Carrera Cabriolet

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

Fuel Economy / Emissions

BMW 640d Cabrio
Porsche 911 Carrera Cabriolet
Fuel Economy
49 mpg
combined
38 mpg
BMW 640d Cabrio
49 mpg
38 mpg
Porsche 911 Carrera Cabriolet
42 mpg
city
29 mpg
No data
motorway
46 mpg
Kraftstoffanzeige
70 L
Fuel Tank Capacity
64 L
Kraftstoffanzeige
750 mi
Range
530 mi
BMW 640d Cabrio
750 mi
530 mi
Porsche 911 Carrera Cabriolet
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).
142.1 kWh
BMW 640d Cabrio
119.3 kWh
142.1 kWh
Porsche 911 Carrera Cabriolet
Euro 6b (NEFZ)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
154 g/km (NEFZ)
CO2 Emissions
172 g/km (NEFZ)

Practical Convenience

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