The Comparative Analysis :

BMW 840i Convertible Steptronic (19 - ..) vs. Porsche 911 Carrera Convertible S (08 - 11)

€ 102,500
BMW 840i Convertible Steptronic (19 - ..) BMW 840i Cabrio
€ 109,900
 Porsche 911 Carrera Convertible S (08 - 11) Porsche 911 Carrera Convertible S
€ 102,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 109,900

ⓘ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 16.1 inches longer, 3.7 inches wider and 1.5 inches taller than the Porsche 911 Carrera Convertible S.
BMW 840i Cabrio
Porsche 911 Carrera Convertible S
52.7
Blueprint BMW 840i Convertible Steptronic (19 - ..)
74.9
84.1
51.2
Blueprint Porsche 911 Carrera Convertible S (08 - 11)
71.2
79.1
74.9 in
Width
71.2 in
84.1 in
Width Incl. Mirrors
79.1 in
52.7 in
Height
51.2 in
Blueprint BMW 840i Convertible Steptronic (19 - ..)
111.1
190.7
Blueprint Porsche 911 Carrera Convertible S (08 - 11)
92.5
174.6
190.7 in
Length
174.6 in
111.1 in
Wheelbase
92.5 in

Vehicle Weight

BMW 840i Cabrio
Porsche 911 Carrera Convertible S
4200 lb
Curb Weight
3494 lb
5159 lb
Gross Vehicle
Weight
4167 lb
BMW 840i Convertible Steptronic (19 - ..)
Weight Difference:
705 lb
16.79 %
Porsche 911 Carrera Convertible S (08 - 11)

General

BMW 840i Cabrio
Porsche 911 Carrera Convertible S
G14
Generation
997
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

BMW 840i Cabrio
Porsche 911 Carrera Convertible S
Straight-six gasoline engine with tur­bo­charger
Engine Type
6-cylinder boxer gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW B58
Engine Series
B58-B30
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.8 L / 186 cu in
335 hp
at 5000 rpm
Power
380 hp
at 6500 rpm
BMW 840i Cabrio
335 hp
380 hp
Porsche 911 Carrera Convertible S
369 lb‑ft
at 1600 rpm
Max. Torque
310 lb‑ft
at 4400 rpm
BMW 840i Cabrio
369 lb‑ft
310 lb‑ft
Porsche 911 Carrera Convertible S

Performance

BMW 840i Cabrio
Porsche 911 Carrera Convertible S
155 mph
Maximum Speed
188 mph
5.3 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph 62
mph

243 ft
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

223 ft
0.000 sec

Porsche 911 Carrera Convertible S

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

Fuel Economy / Emissions

BMW 840i Cabrio
Porsche 911 Carrera Convertible S
Fuel Economy
32 mpg
combined
22 mpg
BMW 840i Cabrio
32 mpg
22 mpg
Porsche 911 Carrera Convertible S
26 mpg
city
15 mpg
No data
highway
31 mpg
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
16.9 gal
Kraftstoffanzeige
571 mi
Range
368 mi
BMW 840i Cabrio
571 mi
368 mi
Porsche 911 Carrera Convertible 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).
204.5 kWh
BMW 840i Cabrio
140.2 kWh
204.5 kWh
Porsche 911 Carrera Convertible S
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
311 g/mi (WLTP)
CO2 Emissions
409 g/mi (NEFZ)

Practical Convenience

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