The Comparative Analysis :

BMW 640d Convertible xDrive Steptronic (12 - 14) vs. Porsche 911 Carrera Convertible 4 GTS (11 - 12)

€ 90,800
BMW 640d Convertible xDrive Steptronic (12 - 14) BMW 640d Cabrio
€ 122,100
 Porsche 911 Carrera Convertible 4 GTS (11 - 12) Porsche 911 Carrera Convertible 4 GTS
€ 90,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 122,100

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

Vehicle Dimensions

The BMW 640d Cabrio is significantly bigger in every dimension. It's 18.1 inches longer, 1.7 inches wider and 2.6 inches taller than the Porsche 911 Carrera Convertible 4 GTS.
BMW 640d Cabrio
Porsche 911 Carrera Convertible 4 GTS
53.7
Blueprint BMW 640d Convertible xDrive Steptronic (12 - 14)
74.6
81.9
51.2
Blueprint Porsche 911 Carrera Convertible 4 GTS (11 - 12)
72.9
80.8
74.6 in
Width
72.9 in
81.9 in
Width Incl. Mirrors
80.8 in
53.7 in
Height
51.2 in
Blueprint BMW 640d Convertible xDrive Steptronic (12 - 14)
112.4
192.7
Blueprint Porsche 911 Carrera Convertible 4 GTS (11 - 12)
92.5
174.6
192.7 in
Length
174.6 in
112.4 in
Wheelbase
92.5 in

Vehicle Weight

BMW 640d Cabrio
Porsche 911 Carrera Convertible 4 GTS
4420 lb
Curb Weight
3616 lb
5379 lb
Gross Vehicle
Weight
4277 lb
BMW 640d Convertible xDrive Steptronic (12 - 14)
Weight Difference:
805 lb
18.21 %
Porsche 911 Carrera Convertible 4 GTS (11 - 12)

General

BMW 640d Cabrio
Porsche 911 Carrera Convertible 4 GTS
F12
Generation
997
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
6-speed manual transmission

Engine

BMW 640d Cabrio
Porsche 911 Carrera Convertible 4 GTS
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW N57
Engine Series
N57-D30
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.8 L / 186 cu in
309 hp
at 4400 rpm
Power
402 hp
at 7300 rpm
BMW 640d Cabrio
309 hp
402 hp
Porsche 911 Carrera Convertible 4 GTS
465 lb‑ft
at 1500 rpm
Max. Torque
310 lb‑ft
at 4400 rpm
BMW 640d Cabrio
465 lb‑ft
310 lb‑ft
Porsche 911 Carrera Convertible 4 GTS

Performance

BMW 640d Cabrio
Porsche 911 Carrera Convertible 4 GTS
155 mph
Maximum Speed
188 mph
5.4 sec
Acceleration 0 to 62 mph
4.8 sec
62 mph 62
mph

246 ft
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

220 ft
0.000 sec

Porsche 911 Carrera Convertible 4 GTS

▶ REPLAY
14.3 lb/hp
Weight-to-Power Ratio
9 lb/hp
BMW 640d Cabrio
14.3 lb/hp
9 lb/hp
Porsche 911 Carrera Convertible 4 GTS

Fuel Economy / Emissions

BMW 640d Cabrio
Porsche 911 Carrera Convertible 4 GTS
Fuel Economy
40 mpg
combined
21 mpg
BMW 640d Cabrio
40 mpg
21 mpg
Porsche 911 Carrera Convertible 4 GTS
33 mpg
city
14 mpg
No data
highway
29 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
17.7 gal
Kraftstoffanzeige
737 mi
Range
372 mi
BMW 640d Cabrio
737 mi
372 mi
Porsche 911 Carrera Convertible 4 GTS
Environmental Impact
121.3 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).
212.1 kWh
BMW 640d Cabrio
121.3 kWh
212.1 kWh
Porsche 911 Carrera Convertible 4 GTS
Euro 5
Emission Standard
Euro 5
248 g/mi (NEFZ)
CO2 Emissions
423 g/mi (NEFZ)

Practical Convenience

BMW 640d Cabrio
Porsche 911 Carrera Convertible 4 GTS
2
Doors
2
4
No. of Seats
2
959 lb
Maximum Payload
661 lb
9.9 cu ft
Trunk Volume
3 cu ft
No data
Cargo Volume (Seats Down)
No data