The Comparative Analysis :

Porsche 911 Carrera Cabriolet 4 (16 - 18) vs. BMW 640i Cabrio xDrive Steptronic (15 - 18)

€ 118,400
Porsche 911 Carrera Cabriolet 4 (16 - 18) Porsche 911 Carrera Cabriolet 4
€ 95,100
 BMW 640i Cabrio xDrive Steptronic (15 - 18) BMW 640i Cabrio
€ 118,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 95,100

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

Vehicle Dimensions

The Porsche 911 Carrera Cabriolet 4 is significantly smaller in every dimension. It's 39.5 cm shorter, 4.2 cm narrower and 7.5 cm lower than the BMW 640i Cabrio.
Porsche 911 Carrera Cabriolet 4
BMW 640i Cabrio
1290
Blueprint Porsche 911 Carrera Cabriolet 4 (16 - 18)
1852
1978
1365
Blueprint BMW 640i Cabrio xDrive Steptronic (15 - 18)
1894
2081
1852 mm
Width
1894 mm
1978 mm
Width Incl. Mirrors
2081 mm
1290 mm
Height
1365 mm
Blueprint Porsche 911 Carrera Cabriolet 4 (16 - 18)
2450
4499
Blueprint BMW 640i Cabrio xDrive Steptronic (15 - 18)
2855
4894
4499 mm
Length
4894 mm
2450 mm
Wheelbase
2855 mm

Vehicle Weight

Porsche 911 Carrera Cabriolet 4
BMW 640i Cabrio
1625 kg
Kerb Weight
1965 kg
1975 kg
Gross Vehicle
Weight
2390 kg
Porsche 911 Carrera Cabriolet 4 (16 - 18)
Weight Difference:
340 kg
17.3 %
BMW 640i Cabrio xDrive Steptronic (15 - 18)

General

Porsche 911 Carrera Cabriolet 4
BMW 640i Cabrio
991
Generation
F12
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Permanent all-wheel drive
7-speed manual transmission
Transmission
8-speed automatic transmission

Engine

Porsche 911 Carrera Cabriolet 4
BMW 640i Cabrio
6-cylinder boxer petrol engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six petrol engine with tur­bo­charger
Engine Series
BMW N55
Engine Code
N55-B30
4
Valves
4
6
Cylinders
6
2981 CC
Engine Capacity
2979 CC
365 bhp
at 6500 rpm
Power
316 bhp
at 5800 rpm
Porsche 911 Carrera Cabriolet 4
365 bhp
316 bhp
BMW 640i Cabrio
450 NM
at 1700 rpm
Max. Torque
450 NM
at 1300 rpm
Porsche 911 Carrera Cabriolet 4
450 NM
450 NM
BMW 640i Cabrio

Performance

Porsche 911 Carrera Cabriolet 4
BMW 640i Cabrio
180 mph
Maximum Speed
155 mph
4.7 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph 62
mph

65 m
0.000 sec

Porsche 911 Carrera Cabriolet 4

62 mph 62
mph

75 m
0.000 sec

BMW 640i Cabrio

▶ REPLAY
4.45 kg/bhp
Weight-to-Power Ratio
6.22 kg/bhp
Porsche 911 Carrera Cabriolet 4
4.45 kg/bhp
6.22 kg/bhp
BMW 640i Cabrio

Fuel Economy / Emissions

Porsche 911 Carrera Cabriolet 4
BMW 640i Cabrio
Fuel Economy
32 mpg
combined
34 mpg
Porsche 911 Carrera Cabriolet 4
32 mpg
34 mpg
BMW 640i Cabrio
23 mpg
city
25 mpg
41 mpg
motorway
No data
Kraftstoffanzeige
68 L
Fuel Tank Capacity
70 L
Kraftstoffanzeige
475 mi
Range
531 mi
Porsche 911 Carrera Cabriolet 4
475 mi
531 mi
BMW 640i Cabrio
Environmental Impact
168.7 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).
155.3 kWh
Porsche 911 Carrera Cabriolet 4
168.7 kWh
155.3 kWh
BMW 640i Cabrio
Euro 6c (NEFZ) 36ZA-ZF
Emission Standard
Euro 6b (NEFZ)
206 g/km (NEFZ)
CO2 Emissions
191 g/km (NEFZ)

Practical Convenience

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