The Comparative Analysis :

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

€ 102,500
BMW 840i Cabrio Steptronic (19 - ..) BMW 840i Cabrio
€ 135,700
 Porsche 911 Carrera Cabriolet S (17 - 18) Porsche 911 Carrera Cabriolet S
€ 102,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 135,700

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

Vehicle Dimensions

The BMW 840i Cabrio is considerably bigger in every dimension. It's 34.4 cm longer, 9.4 cm wider and 4.8 cm taller than the Porsche 911 Carrera Cabriolet S.
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
1339
Blueprint BMW 840i Cabrio Steptronic (19 - ..)
1902
2137
1291
Blueprint Porsche 911 Carrera Cabriolet S (17 - 18)
1808
1978
1902 mm
Width
1808 mm
2137 mm
Width Incl. Mirrors
1978 mm
1339 mm
Height
1291 mm
Blueprint BMW 840i Cabrio Steptronic (19 - ..)
2822
4843
Blueprint Porsche 911 Carrera Cabriolet S (17 - 18)
2450
4499
4843 mm
Length
4499 mm
2822 mm
Wheelbase
2450 mm

Vehicle Weight

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
1905 kg
Kerb Weight
1585 kg
2340 kg
Gross Vehicle
Weight
1950 kg
BMW 840i Cabrio Steptronic (19 - ..)
Weight Difference:
320 kg
16.8 %
Porsche 911 Carrera Cabriolet S (17 - 18)

General

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

Engine

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

Performance

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
155 mph
Maximum Speed
193 mph
5.3 sec
Acceleration 0 to 62 mph
4.2 sec
62 mph 62
mph

74 m
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

58 m
0.000 sec

Porsche 911 Carrera Cabriolet S

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

Fuel Economy / Emissions

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
Fuel Economy
38 mpg
combined
30 mpg
BMW 840i Cabrio
38 mpg
30 mpg
Porsche 911 Carrera Cabriolet S
31 mpg
city
22 mpg
No data
motorway
39 mpg
Kraftstoffanzeige
68 L
Fuel Tank Capacity
64 L
Kraftstoffanzeige
571 mi
Range
423 mi
BMW 840i Cabrio
571 mi
423 mi
Porsche 911 Carrera Cabriolet S
Environmental Impact
140.2 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).
178.2 kWh
BMW 840i Cabrio
140.2 kWh
178.2 kWh
Porsche 911 Carrera Cabriolet S
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
193 g/km (WLTP)
CO2 Emissions
214 g/km (NEFZ)

Practical Convenience

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