The Comparative Analysis :

Porsche 911 Carrera Cabriolet 4S (17 - 18) vs. BMW 840i Cabrio Steptronic (19 - ..)

€ 143,100
Porsche 911 Carrera Cabriolet 4S (17 - 18) Porsche 911 Carrera Cabriolet 4S
€ 102,500
 BMW 840i Cabrio Steptronic (19 - ..) BMW 840i Cabrio
€ 143,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 102,500

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

Vehicle Dimensions

The Porsche 911 Carrera Cabriolet 4S is considerably smaller in every dimension. It's 34.4 cm shorter, 5 cm narrower and 4.6 cm lower than the BMW 840i Cabrio.
Porsche 911 Carrera Cabriolet 4S
BMW 840i Cabrio
1293
Blueprint Porsche 911 Carrera Cabriolet 4S (17 - 18)
1852
1978
1339
Blueprint BMW 840i Cabrio Steptronic (19 - ..)
1902
2137
1852 mm
Width
1902 mm
1978 mm
Width Incl. Mirrors
2137 mm
1293 mm
Height
1339 mm
Blueprint Porsche 911 Carrera Cabriolet 4S (17 - 18)
2450
4499
Blueprint BMW 840i Cabrio Steptronic (19 - ..)
2822
4843
4499 mm
Length
4843 mm
2450 mm
Wheelbase
2822 mm

Vehicle Weight

Porsche 911 Carrera Cabriolet 4S
BMW 840i Cabrio
1635 kg
Kerb Weight
1905 kg
2000 kg
Gross Vehicle
Weight
2340 kg
Porsche 911 Carrera Cabriolet 4S (17 - 18)
Weight Difference:
270 kg
14.17 %
BMW 840i Cabrio Steptronic (19 - ..)

General

Porsche 911 Carrera Cabriolet 4S
BMW 840i Cabrio
991
Generation
G14
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Rear-wheel drive
7-speed manual transmission
Transmission
8-speed automatic transmission

Engine

Porsche 911 Carrera Cabriolet 4S
BMW 840i Cabrio
6-cylinder boxer petrol engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six petrol engine with tur­bo­charger
Engine Series
BMW B58
Engine Code
B58-B30
4
Valves
4
6
Cylinders
6
2981 CC
Engine Capacity
2998 CC
444 bhp
at 6500 rpm
Power
335 bhp
at 5000 rpm
Porsche 911 Carrera Cabriolet 4S
444 bhp
335 bhp
BMW 840i Cabrio
550 NM
at 2150 rpm
Max. Torque
500 NM
at 1600 rpm
Porsche 911 Carrera Cabriolet 4S
550 NM
500 NM
BMW 840i Cabrio

Performance

Porsche 911 Carrera Cabriolet 4S
BMW 840i Cabrio
191 mph
Maximum Speed
155 mph
4.1 sec
Acceleration 0 to 62 mph
5.3 sec
62 mph 62
mph

57 m
0.000 sec

Porsche 911 Carrera Cabriolet 4S

62 mph 62
mph

74 m
0.000 sec

BMW 840i Cabrio

▶ REPLAY
3.68 kg/bhp
Weight-to-Power Ratio
5.69 kg/bhp
Porsche 911 Carrera Cabriolet 4S
3.68 kg/bhp
5.69 kg/bhp
BMW 840i Cabrio

Fuel Economy / Emissions

Porsche 911 Carrera Cabriolet 4S
BMW 840i Cabrio
Fuel Economy
29 mpg
combined
38 mpg
Porsche 911 Carrera Cabriolet 4S
29 mpg
38 mpg
BMW 840i Cabrio
21 mpg
city
31 mpg
37 mpg
motorway
No data
Kraftstoffanzeige
68 L
Fuel Tank Capacity
68 L
Kraftstoffanzeige
436 mi
Range
571 mi
Porsche 911 Carrera Cabriolet 4S
436 mi
571 mi
BMW 840i Cabrio
Environmental Impact
183.8 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).
140.2 kWh
Porsche 911 Carrera Cabriolet 4S
183.8 kWh
140.2 kWh
BMW 840i Cabrio
Euro 6c (NEFZ) 36ZA-ZF
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
220 g/km (NEFZ)
CO2 Emissions
193 g/km (WLTP)

Practical Convenience

Porsche 911 Carrera Cabriolet 4S
BMW 840i Cabrio
2
Doors
2
4
No. of Seats
4
365 kg
Maximum Payload
435 kg
125 L
Boot Capacity
350 L
No data
Boot Capacity (Seats Down)
No data