The Comparative Analysis :
BMW 840i Cabrio Steptronic (19 - ..) vs. Porsche 911 Carrera Cabriolet S PDK (08 - 11)
€ 102,500

€ 113,400

€ 102,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 113,400
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 840i Cabrio is significantly bigger in every dimension. It's 40.8 cm longer, 9.4 cm wider and 3.9 cm taller than the Porsche 911 Carrera Cabriolet S.
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
1339
1902
2137
1300
1808
2008
1902 mm
Width
1808 mm
2137 mm
Width Incl. Mirrors
2008 mm
1339 mm
Height
1300 mm
2822
4843
2350
4435
4843 mm
Length
4435 mm
2822 mm
Wheelbase
2350 mm
Vehicle Weight
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
1905 kg
Kerb Weight
1615 kg
2340 kg
Gross Vehicle
Weight
Weight
1920 kg

Weight Difference:
290 kg
15.22 %

General
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
G14
Generation
997
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 dual clutch transmission
Engine
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
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 S
500 NM
at 1600 rpm
Max. Torque
420 NM
at 4400 rpm
BMW 840i Cabrio
500 NM
420 NM
Porsche 911 Carrera Cabriolet S
Performance
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
155 mph
Maximum Speed
186 mph
5.3 sec
Acceleration 0 to 62 mph
4.7 sec
62 mph
62
mph
mph
74 m
0.000 sec

BMW 840i Cabrio
62 mph
62
mph
mph
65 m
0.000 sec

Porsche 911 Carrera Cabriolet S
▶ REPLAY
5.69 kg/bhp
Weight-to-Power Ratio
4.25 kg/bhp
BMW 840i Cabrio
5.69 kg/bhp
4.25 kg/bhp
Porsche 911 Carrera Cabriolet S
Fuel Economy / Emissions
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet S
Fuel Economy
38 mpg
combined
27 mpg
BMW 840i Cabrio
38 mpg
27 mpg
Porsche 911 Carrera Cabriolet S
31 mpg
city
18 mpg
No data
motorway
39 mpg
68 L
Fuel Tank Capacity
64 L
571 mi
Range
386 mi
BMW 840i Cabrio
571 mi
386 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).
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).
195.2 kWh
BMW 840i Cabrio
140.2 kWh
195.2 kWh
Porsche 911 Carrera Cabriolet S
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
193 g/km (WLTP)
CO2 Emissions
242 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
305 kg
350 L
Boot Capacity
135 L





No data
Boot Capacity (Seats Down)
No data