The Comparative Analysis :

BMW 640d Cabrio Steptronic (15 - 18) vs. Porsche 911 Turbo Cabriolet PDK (13 - 15)

€ 95,900
BMW 640d Cabrio Steptronic (15 - 18) BMW 640d Cabrio
€ 177,900
 Porsche 911 Turbo Cabriolet PDK (13 - 15) Porsche 911 Turbo Cabriolet
€ 95,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 177,900

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

Vehicle Dimensions

The BMW 640d Cabrio is considerably bigger in every dimension. It's 38.8 cm longer, 1.4 cm wider and 7.3 cm taller than the Porsche 911 Turbo Cabriolet.
BMW 640d Cabrio
Porsche 911 Turbo Cabriolet
1365
Blueprint BMW 640d Cabrio Steptronic (15 - 18)
1894
2081
1292
Blueprint Porsche 911 Turbo Cabriolet PDK (13 - 15)
1880
1978
1894 mm
Width
1880 mm
2081 mm
Width Incl. Mirrors
1978 mm
1365 mm
Height
1292 mm
Blueprint BMW 640d Cabrio Steptronic (15 - 18)
2855
4894
Blueprint Porsche 911 Turbo Cabriolet PDK (13 - 15)
2450
4506
4894 mm
Length
4506 mm
2855 mm
Wheelbase
2450 mm

Vehicle Weight

BMW 640d Cabrio
Porsche 911 Turbo Cabriolet
1935 kg
Kerb Weight
1740 kg
2365 kg
Gross Vehicle
Weight
2045 kg
BMW 640d Cabrio Steptronic (15 - 18)
Weight Difference:
195 kg
10.08 %
Porsche 911 Turbo Cabriolet PDK (13 - 15)

General

BMW 640d Cabrio
Porsche 911 Turbo Cabriolet
F12
Generation
991
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
7-speed dual clutch transmission

Engine

BMW 640d Cabrio
Porsche 911 Turbo 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
3800 CC
309 bhp
at 4400 rpm
Power
513 bhp
at 6000 rpm
BMW 640d Cabrio
309 bhp
513 bhp
Porsche 911 Turbo Cabriolet
630 NM
at 1500 rpm
Max. Torque
660 NM
at 5600 rpm
BMW 640d Cabrio
630 NM
660 NM
Porsche 911 Turbo Cabriolet

Performance

BMW 640d Cabrio
Porsche 911 Turbo Cabriolet
155 mph
Maximum Speed
196 mph
5.5 sec
Acceleration 0 to 62 mph
3.5 sec
62 mph 62
mph

76 m
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

49 m
0.000 sec

Porsche 911 Turbo Cabriolet

▶ REPLAY
6.26 kg/bhp
Weight-to-Power Ratio
3.39 kg/bhp
BMW 640d Cabrio
6.26 kg/bhp
3.39 kg/bhp
Porsche 911 Turbo Cabriolet

Fuel Economy / Emissions

BMW 640d Cabrio
Porsche 911 Turbo Cabriolet
Fuel Economy
50 mpg
combined
29 mpg
BMW 640d Cabrio
50 mpg
29 mpg
Porsche 911 Turbo Cabriolet
43 mpg
city
21 mpg
No data
motorway
36 mpg
Kraftstoffanzeige
70 L
Fuel Tank Capacity
68 L
Kraftstoffanzeige
777 mi
Range
427 mi
BMW 640d Cabrio
777 mi
427 mi
Porsche 911 Turbo Cabriolet
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).
187.5 kWh
BMW 640d Cabrio
115.2 kWh
187.5 kWh
Porsche 911 Turbo Cabriolet
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
149 g/km (NEFZ)
CO2 Emissions
231 g/km (NEFZ)

Practical Convenience

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