The Comparative Analysis :

BMW 840i Cabrio Steptronic (19 - ..) vs. Porsche 911 Carrera Cabriolet 4S PDK (08 - 12)

€ 102,500
BMW 840i Cabrio Steptronic (19 - ..) BMW 840i Cabrio
€ 120,200
 Porsche 911 Carrera Cabriolet 4S PDK (08 - 12) Porsche 911 Carrera Cabriolet 4S
€ 102,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 120,200

ⓘ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 40.8 cm longer, 5 cm wider and 3.9 cm taller than the Porsche 911 Carrera Cabriolet 4S.
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
1339
Blueprint BMW 840i Cabrio Steptronic (19 - ..)
1902
2137
1300
Blueprint Porsche 911 Carrera Cabriolet 4S PDK (08 - 12)
1852
2052
1902 mm
Width
1852 mm
2137 mm
Width Incl. Mirrors
2052 mm
1339 mm
Height
1300 mm
Blueprint BMW 840i Cabrio Steptronic (19 - ..)
2822
4843
Blueprint Porsche 911 Carrera Cabriolet 4S PDK (08 - 12)
2350
4435
4843 mm
Length
4435 mm
2822 mm
Wheelbase
2350 mm

Vehicle Weight

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
1905 kg
Kerb Weight
1670 kg
2340 kg
Gross Vehicle
Weight
1970 kg
BMW 840i Cabrio Steptronic (19 - ..)
Weight Difference:
235 kg
12.34 %
Porsche 911 Carrera Cabriolet 4S PDK (08 - 12)

General

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
G14
Generation
997
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Permanent all-wheel drive
8-speed automatic transmission
Transmission
7-speed dual clutch transmission

Engine

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
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
380 bhp
at 6500 rpm
BMW 840i Cabrio
335 bhp
380 bhp
Porsche 911 Carrera Cabriolet 4S
500 NM
at 1600 rpm
Max. Torque
420 NM
at 4400 rpm
BMW 840i Cabrio
500 NM
420 NM
Porsche 911 Carrera Cabriolet 4S

Performance

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

74 m
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

65 m
0.000 sec

Porsche 911 Carrera Cabriolet 4S

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

Fuel Economy / Emissions

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
Fuel Economy
38 mpg
combined
26 mpg
BMW 840i Cabrio
38 mpg
26 mpg
Porsche 911 Carrera Cabriolet 4S
31 mpg
city
18 mpg
No data
motorway
38 mpg
Kraftstoffanzeige
68 L
Fuel Tank Capacity
67 L
Kraftstoffanzeige
571 mi
Range
389 mi
BMW 840i Cabrio
571 mi
389 mi
Porsche 911 Carrera Cabriolet 4S
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).
202.8 kWh
BMW 840i Cabrio
140.2 kWh
202.8 kWh
Porsche 911 Carrera Cabriolet 4S
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
193 g/km (WLTP)
CO2 Emissions
251 g/km (NEFZ)

Practical Convenience

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