The Comparative Analysis :

BMW 840i Cabrio xDrive Steptronic (19 - ..) vs. Porsche 911 Carrera Cabriolet 4 GTS (14 - 15)

€ 105,800
BMW 840i Cabrio xDrive Steptronic (19 - ..) BMW 840i Cabrio
€ 137,400
 Porsche 911 Carrera Cabriolet 4 GTS (14 - 15) Porsche 911 Carrera Cabriolet 4 GTS
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 137,400

ⓘ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 33.4 cm longer, 5 cm wider and 4.5 cm taller than the Porsche 911 Carrera Cabriolet 4 GTS.
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4 GTS
1339
Blueprint BMW 840i Cabrio xDrive Steptronic (19 - ..)
1902
2137
1294
Blueprint Porsche 911 Carrera Cabriolet 4 GTS (14 - 15)
1852
1978
1902 mm
Width
1852 mm
2137 mm
Width Incl. Mirrors
1978 mm
1339 mm
Height
1294 mm
Blueprint BMW 840i Cabrio xDrive Steptronic (19 - ..)
2822
4843
Blueprint Porsche 911 Carrera Cabriolet 4 GTS (14 - 15)
2450
4509
4843 mm
Length
4509 mm
2822 mm
Wheelbase
2450 mm

Vehicle Weight

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4 GTS
1955 kg
Kerb Weight
1615 kg
2400 kg
Gross Vehicle
Weight
1935 kg
BMW 840i Cabrio xDrive Steptronic (19 - ..)
Weight Difference:
340 kg
17.39 %
Porsche 911 Carrera Cabriolet 4 GTS (14 - 15)

General

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4 GTS
G14
Generation
991
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
7-speed manual transmission

Engine

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4 GTS
Straight-six petrol engine with tur­bo­charger
Engine Type
6-cylinder boxer petrol engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW B58
Engine Series
B58-B30
Engine Code
4
Valves
4
6
Cylinders
6
2998 CC
Engine Capacity
3800 CC
335 bhp
at 5000 rpm
Power
424 bhp
at 7500 rpm
BMW 840i Cabrio
335 bhp
424 bhp
Porsche 911 Carrera Cabriolet 4 GTS
500 NM
at 1600 rpm
Max. Torque
440 NM
at 5750 rpm
BMW 840i Cabrio
500 NM
440 NM
Porsche 911 Carrera Cabriolet 4 GTS

Performance

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4 GTS
155 mph
Maximum Speed
188 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 4 GTS

▶ REPLAY
5.84 kg/bhp
Weight-to-Power Ratio
3.81 kg/bhp
BMW 840i Cabrio
5.84 kg/bhp
3.81 kg/bhp
Porsche 911 Carrera Cabriolet 4 GTS

Fuel Economy / Emissions

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4 GTS
Fuel Economy
37 mpg
combined
28 mpg
BMW 840i Cabrio
37 mpg
28 mpg
Porsche 911 Carrera Cabriolet 4 GTS
29 mpg
city
20 mpg
No data
motorway
37 mpg
Kraftstoffanzeige
68 L
Fuel Tank Capacity
68 L
Kraftstoffanzeige
549 mi
Range
423 mi
BMW 840i Cabrio
549 mi
423 mi
Porsche 911 Carrera Cabriolet 4 GTS
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).
189.4 kWh
BMW 840i Cabrio
145.8 kWh
189.4 kWh
Porsche 911 Carrera Cabriolet 4 GTS
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
205 g/km (WLTP)
CO2 Emissions
235 g/km (NEFZ)

Practical Convenience

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