The Comparative Analysis :

BMW 840d Convertible xDrive Steptronic (19 - ..) vs. Porsche 911 Carrera Convertible 4 PDK (12 - 15)

€ 108,000
BMW 840d Convertible xDrive Steptronic (19 - ..) BMW 840d Cabrio
€ 113,800
 Porsche 911 Carrera Convertible 4 PDK (12 - 15) Porsche 911 Carrera Convertible 4
€ 108,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 113,800

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The BMW 840d Cabrio is considerably bigger in every dimension. It's 13.9 inches longer, 2 inches wider and 1.5 inches taller than the Porsche 911 Carrera Convertible 4.
BMW 840d Cabrio
Porsche 911 Carrera Convertible 4
52.7
Blueprint BMW 840d Convertible xDrive Steptronic (19 - ..)
74.9
84.1
51.2
Blueprint Porsche 911 Carrera Convertible 4 PDK (12 - 15)
72.9
77.9
74.9 in
Width
72.9 in
84.1 in
Width Incl. Mirrors
77.9 in
52.7 in
Height
51.2 in
Blueprint BMW 840d Convertible xDrive Steptronic (19 - ..)
111.1
190.7
Blueprint Porsche 911 Carrera Convertible 4 PDK (12 - 15)
96.5
176.8
190.7 in
Length
176.8 in
111.1 in
Wheelbase
96.5 in

Vehicle Weight

BMW 840d Cabrio
Porsche 911 Carrera Convertible 4
4475 lb
Curb Weight
3516 lb
5478 lb
Gross Vehicle
Weight
4233 lb
BMW 840d Convertible xDrive Steptronic (19 - ..)
Weight Difference:
959 lb
21.43 %
Porsche 911 Carrera Convertible 4 PDK (12 - 15)

General

BMW 840d Cabrio
Porsche 911 Carrera Convertible 4
G14
Generation
991
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
7-speed dual clutch transmission

Engine

BMW 840d Cabrio
Porsche 911 Carrera Convertible 4
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW B57
Engine Series
B57-D30
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.4 L / 166 cu in
316 hp
at 4400 rpm
Power
345 hp
at 7400 rpm
BMW 840d Cabrio
316 hp
345 hp
Porsche 911 Carrera Convertible 4
502 lb‑ft
at 1750 rpm
Max. Torque
288 lb‑ft
at 5600 rpm
BMW 840d Cabrio
502 lb‑ft
288 lb‑ft
Porsche 911 Carrera Convertible 4

Performance

BMW 840d Cabrio
Porsche 911 Carrera Convertible 4
155 mph
Maximum Speed
174 mph
5.2 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph 62
mph

236 ft
0.000 sec

BMW 840d Cabrio

62 mph 62
mph

223 ft
0.000 sec

Porsche 911 Carrera Convertible 4

▶ REPLAY
14.16 lb/hp
Weight-to-Power Ratio
10.19 lb/hp
BMW 840d Cabrio
14.16 lb/hp
10.19 lb/hp
Porsche 911 Carrera Convertible 4

Fuel Economy / Emissions

BMW 840d Cabrio
Porsche 911 Carrera Convertible 4
Fuel Economy
38 mpg
combined
27 mpg
BMW 840d Cabrio
38 mpg
27 mpg
Porsche 911 Carrera Convertible 4
32 mpg
city
20 mpg
No data
highway
34 mpg
Kraftstoffanzeige
17.4 gal
Fuel Tank Capacity
18 gal
Kraftstoffanzeige
662 mi
Range
486 mi
BMW 840d Cabrio
662 mi
486 mi
Porsche 911 Carrera Convertible 4
Environmental Impact
127.6 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).
164.8 kWh
BMW 840d Cabrio
127.6 kWh
164.8 kWh
Porsche 911 Carrera Convertible 4
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5 / Euro 6
296 g/mi (WLTP)
CO2 Emissions
330 g/mi (NEFZ)

Practical Convenience

BMW 840d Cabrio
Porsche 911 Carrera Convertible 4
2
Doors
2
4
No. of Seats
4
1003 lb
Maximum Payload
717 lb
9.9 cu ft
Trunk Volume
3.5 cu ft
No data
Cargo Volume (Seats Down)
No data