The Comparative Analysis :

BMW 840i Cabrio xDrive Steptronic (19 - ..) vs. Porsche 911 Carrera Cabriolet PDK (15 - 18)

€ 105,800
BMW 840i Cabrio xDrive Steptronic (19 - ..) BMW 840i Cabrio
€ 114,500
 Porsche 911 Carrera Cabriolet PDK (15 - 18) Porsche 911 Carrera Cabriolet
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 114,500

ⓘ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 5 cm taller than the Porsche 911 Carrera Cabriolet.
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet
1339
Blueprint BMW 840i Cabrio xDrive Steptronic (19 - ..)
1902
2137
1289
Blueprint Porsche 911 Carrera Cabriolet PDK (15 - 18)
1808
1978
1902 mm
Width
1808 mm
2137 mm
Width Incl. Mirrors
1978 mm
1339 mm
Height
1289 mm
Blueprint BMW 840i Cabrio xDrive Steptronic (19 - ..)
2822
4843
Blueprint Porsche 911 Carrera Cabriolet PDK (15 - 18)
2450
4499
4843 mm
Length
4499 mm
2822 mm
Wheelbase
2450 mm

Vehicle Weight

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet
1955 kg
Kerb Weight
1595 kg
2400 kg
Gross Vehicle
Weight
1940 kg
BMW 840i Cabrio xDrive Steptronic (19 - ..)
Weight Difference:
360 kg
18.41 %
Porsche 911 Carrera Cabriolet PDK (15 - 18)

General

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

Engine

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet
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
365 bhp
at 6500 rpm
BMW 840i Cabrio
335 bhp
365 bhp
Porsche 911 Carrera Cabriolet
500 NM
at 1600 rpm
Max. Torque
450 NM
at 1700 rpm
BMW 840i Cabrio
500 NM
450 NM
Porsche 911 Carrera Cabriolet

Performance

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet
155 mph
Maximum Speed
180 mph
4.9 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph 62
mph

68 m
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

64 m
0.000 sec

Porsche 911 Carrera Cabriolet

▶ REPLAY
5.84 kg/bhp
Weight-to-Power Ratio
4.37 kg/bhp
BMW 840i Cabrio
5.84 kg/bhp
4.37 kg/bhp
Porsche 911 Carrera Cabriolet

Fuel Economy / Emissions

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet
Fuel Economy
37 mpg
combined
38 mpg
BMW 840i Cabrio
37 mpg
38 mpg
Porsche 911 Carrera Cabriolet
29 mpg
city
29 mpg
No data
motorway
46 mpg
Kraftstoffanzeige
68 L
Fuel Tank Capacity
64 L
Kraftstoffanzeige
549 mi
Range
530 mi
BMW 840i Cabrio
549 mi
530 mi
Porsche 911 Carrera Cabriolet
Environmental Impact
145.8 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).
142.1 kWh
BMW 840i Cabrio
145.8 kWh
142.1 kWh
Porsche 911 Carrera Cabriolet
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
205 g/km (WLTP)
CO2 Emissions
172 g/km (NEFZ)

Practical Convenience

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