The Comparative Analysis :

BMW 650i Convertible xDrive Steptronic (13 - 14) vs. Porsche 911 Carrera Convertible 4 GTS (14 - 15)

€ 99,300
BMW 650i Convertible xDrive Steptronic (13 - 14) BMW 650i Cabrio
€ 137,400
 Porsche 911 Carrera Convertible 4 GTS (14 - 15) Porsche 911 Carrera Convertible 4 GTS
€ 99,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 137,400

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

Vehicle Dimensions

The BMW 650i Cabrio is considerably bigger in every dimension. It's 15.2 inches longer, 1.7 inches wider and 2.8 inches taller than the Porsche 911 Carrera Convertible 4 GTS.
BMW 650i Cabrio
Porsche 911 Carrera Convertible 4 GTS
53.7
Blueprint BMW 650i Convertible xDrive Steptronic (13 - 14)
74.6
81.9
50.9
Blueprint Porsche 911 Carrera Convertible 4 GTS (14 - 15)
72.9
77.9
74.6 in
Width
72.9 in
81.9 in
Width Incl. Mirrors
77.9 in
53.7 in
Height
50.9 in
Blueprint BMW 650i Convertible xDrive Steptronic (13 - 14)
112.4
192.7
Blueprint Porsche 911 Carrera Convertible 4 GTS (14 - 15)
96.5
177.5
192.7 in
Length
177.5 in
112.4 in
Wheelbase
96.5 in

Vehicle Weight

BMW 650i Cabrio
Porsche 911 Carrera Convertible 4 GTS
4530 lb
Curb Weight
3560 lb
5434 lb
Gross Vehicle
Weight
4266 lb
BMW 650i Convertible xDrive Steptronic (13 - 14)
Weight Difference:
970 lb
21.41 %
Porsche 911 Carrera Convertible 4 GTS (14 - 15)

General

BMW 650i Cabrio
Porsche 911 Carrera Convertible 4 GTS
F12
Generation
991
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
7-speed manual transmission

Engine

BMW 650i Cabrio
Porsche 911 Carrera Convertible 4 GTS
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW N63
Engine Series
N63-B44
Engine Code
4
Valves
4
8
Cylinders
6
4.4 L / 215 cu in
Displacement
3.8 L / 186 cu in
444 hp
at 5500 rpm
Power
424 hp
at 7500 rpm
BMW 650i Cabrio
444 hp
424 hp
Porsche 911 Carrera Convertible 4 GTS
479 lb‑ft
at 2000 rpm
Max. Torque
325 lb‑ft
at 5750 rpm
BMW 650i Cabrio
479 lb‑ft
325 lb‑ft
Porsche 911 Carrera Convertible 4 GTS

Performance

BMW 650i Cabrio
Porsche 911 Carrera Convertible 4 GTS
155 mph
Maximum Speed
188 mph
4.9 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph 62
mph

223 ft
0.000 sec

BMW 650i Cabrio

62 mph 62
mph

210 ft
0.000 sec

Porsche 911 Carrera Convertible 4 GTS

▶ REPLAY
10.2 lb/hp
Weight-to-Power Ratio
8.4 lb/hp
BMW 650i Cabrio
10.2 lb/hp
8.4 lb/hp
Porsche 911 Carrera Convertible 4 GTS

Fuel Economy / Emissions

BMW 650i Cabrio
Porsche 911 Carrera Convertible 4 GTS
Fuel Economy
25 mpg
combined
24 mpg
BMW 650i Cabrio
25 mpg
24 mpg
Porsche 911 Carrera Convertible 4 GTS
18 mpg
city
17 mpg
No data
highway
31 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
18 gal
Kraftstoffanzeige
468 mi
Range
423 mi
BMW 650i Cabrio
468 mi
423 mi
Porsche 911 Carrera Convertible 4 GTS
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).
189.4 kWh
BMW 650i Cabrio
176.2 kWh
189.4 kWh
Porsche 911 Carrera Convertible 4 GTS
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
349 g/mi (NEFZ)
CO2 Emissions
378 g/mi (NEFZ)

Practical Convenience

BMW 650i Cabrio
Porsche 911 Carrera Convertible 4 GTS
2
Doors
2
4
No. of Seats
4
904 lb
Maximum Payload
705 lb
9.9 cu ft
Trunk Volume
3.5 cu ft
No data
Cargo Volume (Seats Down)
No data