The Comparative Analysis :
BMW 840i Cabrio xDrive Steptronic (19 - ..) vs. Porsche 911 Carrera Cabriolet 4S PDK (17 - 18)
€ 105,800
€ 146,200
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 146,200
ⓘ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 34.4 cm longer, 5 cm wider and 4.7 cm taller than the Porsche 911 Carrera Cabriolet 4S.
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
1339
1902
2137
1292
1852
1978
1902 mm
Width
1852 mm
2137 mm
Width Incl. Mirrors
1978 mm
1339 mm
Height
1292 mm
2822
4843
2450
4499
4843 mm
Length
4499 mm
2822 mm
Wheelbase
2450 mm
Vehicle Weight
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
1955 kg
Kerb Weight
1655 kg
2400 kg
Gross Vehicle
Weight
Weight
2015 kg
Weight Difference:
300 kg
15.35 %
General
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
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 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 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 4S
500 NM
at 1600 rpm
Max. Torque
550 NM
at 2150 rpm
BMW 840i Cabrio
500 NM
550 NM
Porsche 911 Carrera Cabriolet 4S
Performance
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
155 mph
Maximum Speed
190 mph
4.9 sec
Acceleration 0 to 62 mph
3.7 sec
62 mph
62
mph
mph
68 m
0.000 sec
BMW 840i Cabrio
62 mph
62
mph
mph
51 m
0.000 sec
Porsche 911 Carrera Cabriolet 4S
▶ REPLAY
5.84 kg/bhp
Weight-to-Power Ratio
3.73 kg/bhp
BMW 840i Cabrio
5.84 kg/bhp
3.73 kg/bhp
Porsche 911 Carrera Cabriolet 4S
Fuel Economy / Emissions
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
Fuel Economy
37 mpg
combined
32 mpg
BMW 840i Cabrio
37 mpg
32 mpg
Porsche 911 Carrera Cabriolet 4S
29 mpg
city
25 mpg
No data
motorway
39 mpg
68 L
Fuel Tank Capacity
68 L
549 mi
Range
486 mi
BMW 840i Cabrio
549 mi
486 mi
Porsche 911 Carrera Cabriolet 4S
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).
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).
164.8 kWh
BMW 840i Cabrio
145.8 kWh
164.8 kWh
Porsche 911 Carrera Cabriolet 4S
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
205 g/km (WLTP)
CO2 Emissions
196 g/km (NEFZ)
Practical Convenience
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4S
2
Doors
2
4
No. of Seats
4
445 kg
Maximum Payload
360 kg
350 L
Boot Capacity
125 L
No data
Boot Capacity (Seats Down)
No data
