The Comparative Analysis :

Porsche 911 Carrera Convertible 4S PDK (17 - 18) vs. BMW 840i Convertible Steptronic (19 - ..)

€ 146,200
Porsche 911 Carrera Convertible 4S PDK (17 - 18) Porsche 911 Carrera Convertible 4S
€ 102,500
 BMW 840i Convertible Steptronic (19 - ..) BMW 840i Cabrio
€ 146,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 102,500

ⓘ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 13.5 inches shorter, 2 inches narrower and 1.9 inches lower than the BMW 840i Cabrio.
Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
50.9
Blueprint Porsche 911 Carrera Convertible 4S PDK (17 - 18)
72.9
77.9
52.7
Blueprint BMW 840i Convertible Steptronic (19 - ..)
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
Blueprint Porsche 911 Carrera Convertible 4S PDK (17 - 18)
96.5
177.1
Blueprint BMW 840i Convertible Steptronic (19 - ..)
111.1
190.7
177.1 in
Length
190.7 in
96.5 in
Wheelbase
111.1 in

Vehicle Weight

Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
3649 lb
Curb Weight
4200 lb
4442 lb
Gross Vehicle
Weight
5159 lb
Porsche 911 Carrera Convertible 4S PDK (17 - 18)
Weight Difference:
551 lb
13.12 %
BMW 840i Convertible Steptronic (19 - ..)

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
Rear-wheel drive
7-speed dual clutch transmission
Transmission
8-speed automatic transmission

Engine

Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
6-cylinder boxer gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six gasoline engine with tur­bo­charger
Engine Series
BMW B58
Engine Code
B58-B30
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
444 hp
at 6500 rpm
Power
335 hp
at 5000 rpm
Porsche 911 Carrera Convertible 4S
444 hp
335 hp
BMW 840i Cabrio
406 lb‑ft
at 2150 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Porsche 911 Carrera Convertible 4S
406 lb‑ft
369 lb‑ft
BMW 840i Cabrio

Performance

Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
190 mph
Maximum Speed
155 mph
3.7 sec
Acceleration 0 to 62 mph
5.3 sec
62 mph 62
mph

167 ft
0.000 sec

Porsche 911 Carrera Convertible 4S

62 mph 62
mph

243 ft
0.000 sec

BMW 840i Cabrio

▶ REPLAY
8.22 lb/hp
Weight-to-Power Ratio
12.54 lb/hp
Porsche 911 Carrera Convertible 4S
8.22 lb/hp
12.54 lb/hp
BMW 840i Cabrio

Fuel Economy / Emissions

Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
Fuel Economy
27 mpg
combined
32 mpg
Porsche 911 Carrera Convertible 4S
27 mpg
32 mpg
BMW 840i Cabrio
21 mpg
city
26 mpg
32 mpg
highway
No data
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
18 gal
Kraftstoffanzeige
486 mi
Range
571 mi
Porsche 911 Carrera Convertible 4S
486 mi
571 mi
BMW 840i Cabrio
Environmental Impact
164.8 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).
140.2 kWh
Porsche 911 Carrera Convertible 4S
164.8 kWh
140.2 kWh
BMW 840i Cabrio
Euro 6c (NEFZ) 36ZA-ZF
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
315 g/mi (NEFZ)
CO2 Emissions
311 g/mi (WLTP)

Practical Convenience

Porsche 911 Carrera Convertible 4S
BMW 840i Cabrio
2
Doors
2
4
No. of Seats
4
794 lb
Maximum Payload
959 lb
3.5 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data