The Comparative Analysis :

Porsche 911 Turbo Convertible PDK (16 - 18) vs. BMW 840i Convertible xDrive Steptronic (19 - ..)

€ 190,000
Porsche 911 Turbo Convertible PDK (16 - 18) Porsche 911 Turbo Convertible
€ 105,800
 BMW 840i Convertible xDrive Steptronic (19 - ..) BMW 840i Cabrio
€ 190,000
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 Turbo Convertible is considerably smaller in every dimension. It's 13.2 inches shorter, 0.9 inches narrower and 1.8 inches lower than the BMW 840i Cabrio.
Porsche 911 Turbo Convertible
BMW 840i Cabrio
50.9
Blueprint Porsche 911 Turbo Convertible PDK (16 - 18)
74
77.9
52.7
Blueprint BMW 840i Convertible xDrive Steptronic (19 - ..)
74.9
84.1
74 in
Width
74.9 in
77.9 in
Width Incl. Mirrors
84.1 in
50.9 in
Height
52.7 in
Blueprint Porsche 911 Turbo Convertible PDK (16 - 18)
96.5
177.4
Blueprint BMW 840i Convertible xDrive Steptronic (19 - ..)
111.1
190.7
177.4 in
Length
190.7 in
96.5 in
Wheelbase
111.1 in

Vehicle Weight

Porsche 911 Turbo Convertible
BMW 840i Cabrio
3836 lb
Curb Weight
4310 lb
4553 lb
Gross Vehicle
Weight
5291 lb
Porsche 911 Turbo Convertible PDK (16 - 18)
Weight Difference:
474 lb
11 %
BMW 840i Convertible xDrive Steptronic (19 - ..)

General

Porsche 911 Turbo Convertible
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 Turbo Convertible
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
3.8 L / 186 cu in
Displacement
3 L / 147 cu in
533 hp
at 6400 rpm
Power
335 hp
at 5000 rpm
Porsche 911 Turbo Convertible
533 hp
335 hp
BMW 840i Cabrio
487 lb‑ft
at 5600 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Porsche 911 Turbo Convertible
487 lb‑ft
369 lb‑ft
BMW 840i Cabrio

Performance

Porsche 911 Turbo Convertible
BMW 840i Cabrio
199 mph
Maximum Speed
155 mph
3.1 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph 62
mph

141 ft
0.000 sec

Porsche 911 Turbo Convertible

62 mph 62
mph

223 ft
0.000 sec

BMW 840i Cabrio

▶ REPLAY
7.2 lb/hp
Weight-to-Power Ratio
12.87 lb/hp
Porsche 911 Turbo Convertible
7.2 lb/hp
12.87 lb/hp
BMW 840i Cabrio

Fuel Economy / Emissions

Porsche 911 Turbo Convertible
BMW 840i Cabrio
Fuel Economy
25 mpg
combined
31 mpg
Porsche 911 Turbo Convertible
25 mpg
31 mpg
BMW 840i Cabrio
19 mpg
city
24 mpg
31 mpg
highway
No data
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
18 gal
Kraftstoffanzeige
454 mi
Range
549 mi
Porsche 911 Turbo Convertible
454 mi
549 mi
BMW 840i Cabrio
Environmental Impact
176.2 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).
145.8 kWh
Porsche 911 Turbo Convertible
176.2 kWh
145.8 kWh
BMW 840i Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
348 g/mi (NEFZ)
CO2 Emissions
330 g/mi (WLTP)

Practical Convenience

Porsche 911 Turbo Convertible
BMW 840i Cabrio
2
Doors
2
4
No. of Seats
4
717 lb
Maximum Payload
981 lb
3.3 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data