The Comparative Analysis :

BMW 640i Cabrio xDrive Steptronic (13 - 14) vs. Porsche 911 Turbo Coupé S PDK (20 - ..)

€ 87,300
BMW 640i Cabrio xDrive Steptronic (13 - 14) BMW 640i Cabrio
€ 218,800
 Porsche 911 Turbo Coupé S PDK (20 - ..) Porsche 911 Turbo Coupé S
€ 87,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 218,800

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

Vehicle Dimensions

The dimensions of these vehicles differ considerably. The BMW 640i Cabrio is 35.9 cm longer, 0.6 cm narrower and 6.2 cm taller than the Porsche 911 Turbo Coupé S.
BMW 640i Cabrio
Porsche 911 Turbo Coupé S
1365
Blueprint BMW 640i Cabrio xDrive Steptronic (13 - 14)
1894
2081
1303
Blueprint Porsche 911 Turbo Coupé S PDK (20 - ..)
1900
2024
1894 mm
Width
1900 mm
2081 mm
Width Incl. Mirrors
2024 mm
1365 mm
Height
1303 mm
Blueprint BMW 640i Cabrio xDrive Steptronic (13 - 14)
2855
4894
Blueprint Porsche 911 Turbo Coupé S PDK (20 - ..)
2450
4535
4894 mm
Length
4535 mm
2855 mm
Wheelbase
2450 mm

Vehicle Weight

BMW 640i Cabrio
Porsche 911 Turbo Coupé S
1985 kg
Kerb Weight
1715 kg
2400 kg
Gross Vehicle
Weight
2020 kg
BMW 640i Cabrio xDrive Steptronic (13 - 14)
Weight Difference:
270 kg
13.6 %
Porsche 911 Turbo Coupé S PDK (20 - ..)

General

BMW 640i Cabrio
Porsche 911 Turbo Coupé S
F12
Generation
992
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Permanent all-wheel drive
8-speed automatic transmission
Transmission
8-speed dual clutch transmission

Engine

BMW 640i Cabrio
Porsche 911 Turbo Coupé S
Straight-six petrol engine with tur­bo­charger
Engine Type
6-cylinder boxer petrol engine with two tur­bo­chargers (bi­turbo)
BMW N55
Engine Series
N55-B30
Engine Code
4
Valves
4
6
Cylinders
6
2979 CC
Engine Capacity
3745 CC
316 bhp
at 5800 rpm
Power
641 bhp
at 6750 rpm
BMW 640i Cabrio
316 bhp
641 bhp
Porsche 911 Turbo Coupé S
450 NM
at 1300 rpm
Max. Torque
800 NM
at 2500 rpm
BMW 640i Cabrio
450 NM
800 NM
Porsche 911 Turbo Coupé S

Performance

BMW 640i Cabrio
Porsche 911 Turbo Coupé S
155 mph
Maximum Speed
205 mph
5.4 sec
Acceleration 0 to 62 mph
2.7 sec
62 mph 62
mph

75 m
0.000 sec

BMW 640i Cabrio

62 mph 62
mph

38 m
0.000 sec

Porsche 911 Turbo Coupé S

▶ REPLAY
6.28 kg/bhp
Weight-to-Power Ratio
2.68 kg/bhp
BMW 640i Cabrio
6.28 kg/bhp
2.68 kg/bhp
Porsche 911 Turbo Coupé S

Fuel Economy / Emissions

BMW 640i Cabrio
Porsche 911 Turbo Coupé S
Fuel Economy
34 mpg
combined
25 mpg
BMW 640i Cabrio
34 mpg
25 mpg
Porsche 911 Turbo Coupé S
25 mpg
city
18 mpg
No data
motorway
33 mpg
Kraftstoffanzeige
70 L
Fuel Tank Capacity
67 L
Kraftstoffanzeige
531 mi
Range
375 mi
BMW 640i Cabrio
531 mi
375 mi
Porsche 911 Turbo Coupé S
Environmental Impact
155.3 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).
210.3 kWh
BMW 640i Cabrio
155.3 kWh
210.3 kWh
Porsche 911 Turbo Coupé S
Euro 6b (NEFZ)
Emission Standard
Euro 6d-ISC-FCM (WLTP) 36AP-AR
192 g/km (NEFZ)
CO2 Emissions
271 g/km (WLTP)

Practical Convenience

BMW 640i Cabrio
Porsche 911 Turbo Coupé S
2
Doors
2
4
No. of Seats
4
415 kg
Maximum Payload
305 kg
350 L
Boot Capacity
128 L
No data
Boot Capacity (Seats Down)
No data