The Comparative Analysis :
Porsche 911 Carrera Convertible 4S PDK (12 - 15) vs. BMW 840i Convertible xDrive Steptronic (19 - ..)
€ 142,800
€ 105,800
€ 142,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 105,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Porsche 911 Carrera Convertible 4S is considerably smaller in every dimension. It's 13.9 inches shorter, 2 inches narrower and 1.8 inches lower than the BMW 840i Cabrio.
Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
50.9
72.9
77.9
52.7
74.9
84.1
72.9 in
Width
74.9 in
77.9 in
Width Incl. Mirrors
84.1 in
50.9 in
Height
52.7 in
96.5
176.8
111.1
190.7
176.8 in
Length
190.7 in
96.5 in
Wheelbase
111.1 in
Vehicle Weight
Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
3549 lb
Curb Weight
4310 lb
4310 lb
Gross Vehicle
Weight
Weight
5291 lb
Weight Difference:
761 lb
17.66 %
General
Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
991
Generation
G14
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)
7-speed dual clutch transmission
Transmission
8-speed automatic transmission
Engine
Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
6-cylinder boxer gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine with turbocharger
Engine Series
BMW B58
Engine Code
B58-B30
4
Valves
4
6
Cylinders
6
3.8 L / 186 cu in
Displacement
3 L / 147 cu in
424 hp
at 7500 rpm
Power
335 hp
at 5000 rpm
Porsche 911 Carrera Convertible 4S
424 hp
335 hp
BMW 840i Cabrio
325 lb‑ft
at 5750 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Porsche 911 Carrera Convertible 4S
325 lb‑ft
369 lb‑ft
BMW 840i Cabrio
Performance
Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
185 mph
Maximum Speed
155 mph
4.4 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
200 ft
0.000 sec
Porsche 911 Carrera Convertible 4S
62 mph
62
mph
mph
223 ft
0.000 sec
BMW 840i Cabrio
▶ REPLAY
8.37 lb/hp
Weight-to-Power Ratio
12.87 lb/hp
Porsche 911 Carrera Convertible 4S
8.37 lb/hp
12.87 lb/hp
BMW 840i Cabrio
Fuel Economy / Emissions
Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
Fuel Economy
26 mpg
combined
31 mpg
Porsche 911 Carrera Convertible 4S
26 mpg
31 mpg
BMW 840i Cabrio
18 mpg
city
24 mpg
33 mpg
highway
No data
18 gal
Fuel Tank Capacity
18 gal
459 mi
Range
549 mi
Porsche 911 Carrera Convertible 4S
459 mi
549 mi
BMW 840i Cabrio
Environmental Impact
174.3 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).
145.8 kWh
Porsche 911 Carrera Convertible 4S
174.3 kWh
145.8 kWh
BMW 840i Cabrio
Euro 5 / Euro 6
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
349 g/mi (NEFZ)
CO2 Emissions
330 g/mi (WLTP)
Practical Convenience
Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
2
Doors
2
4
No. of Seats
4
761 lb
Maximum Payload
981 lb
3.5 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data
