The Comparative Analysis :

BMW 840i Convertible Steptronic (19 - ..) vs. Porsche 911 Carrera Convertible PDK (19 - ..)

€ 102,500
BMW 840i Convertible Steptronic (19 - ..) BMW 840i Cabrio
€ 118,900
 Porsche 911 Carrera Convertible PDK (19 - ..) Porsche 911 Carrera Convertible
€ 102,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 118,900

ⓘ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 12.8 inches longer, 2 inches wider and 1.7 inches taller than the Porsche 911 Carrera Convertible.
BMW 840i Cabrio
Porsche 911 Carrera Convertible
52.7
Blueprint BMW 840i Convertible Steptronic (19 - ..)
74.9
84.1
51.1
Blueprint Porsche 911 Carrera Convertible PDK (19 - ..)
72.9
79.7
74.9 in
Width
72.9 in
84.1 in
Width Incl. Mirrors
79.7 in
52.7 in
Height
51.1 in
Blueprint BMW 840i Convertible Steptronic (19 - ..)
111.1
190.7
Blueprint Porsche 911 Carrera Convertible PDK (19 - ..)
96.5
177.9
190.7 in
Length
177.9 in
111.1 in
Wheelbase
96.5 in

Vehicle Weight

BMW 840i Cabrio
Porsche 911 Carrera Convertible
4200 lb
Curb Weight
3638 lb
5159 lb
Gross Vehicle
Weight
4442 lb
BMW 840i Convertible Steptronic (19 - ..)
Weight Difference:
562 lb
13.38 %
Porsche 911 Carrera Convertible PDK (19 - ..)

General

BMW 840i Cabrio
Porsche 911 Carrera Convertible
G14
Generation
992
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
8-speed dual clutch transmission

Engine

BMW 840i Cabrio
Porsche 911 Carrera Convertible
Straight-six gasoline engine with tur­bo­charger
Engine Type
6-cylinder boxer gasoline engine with two tur­bo­chargers (bi­turbo)
BMW B58
Engine Series
B58-B30
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3 L / 147 cu in
335 hp
at 5000 rpm
Power
380 hp
at 6500 rpm
BMW 840i Cabrio
335 hp
380 hp
Porsche 911 Carrera Convertible
369 lb‑ft
at 1600 rpm
Max. Torque
332 lb‑ft
at 1950 rpm
BMW 840i Cabrio
369 lb‑ft
332 lb‑ft
Porsche 911 Carrera Convertible

Performance

BMW 840i Cabrio
Porsche 911 Carrera Convertible
155 mph
Maximum Speed
181 mph
5.3 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph 62
mph

243 ft
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

200 ft
0.000 sec

Porsche 911 Carrera Convertible

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

Fuel Economy / Emissions

BMW 840i Cabrio
Porsche 911 Carrera Convertible
Fuel Economy
32 mpg
combined
26 mpg
BMW 840i Cabrio
32 mpg
26 mpg
Porsche 911 Carrera Convertible
26 mpg
city
21 mpg
No data
highway
30 mpg
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
16.9 gal
Kraftstoffanzeige
571 mi
Range
432 mi
BMW 840i Cabrio
571 mi
432 mi
Porsche 911 Carrera Convertible
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).
174.3 kWh
BMW 840i Cabrio
140.2 kWh
174.3 kWh
Porsche 911 Carrera Convertible
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6d
311 g/mi (WLTP)
CO2 Emissions
372 g/mi (WLTP)

Practical Convenience

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