The Comparative Analysis :
BMW 650i Convertible Automatic (12 - 13) vs. Porsche 911 Carrera Convertible 4S PDK (12 - 15)
€ 95,900

€ 142,800

€ 95,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 142,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 650i Cabrio is significantly bigger in every dimension. It's 15.9 inches longer, 1.7 inches wider and 2.8 inches taller than the Porsche 911 Carrera Convertible 4S.
BMW 650i Cabrio
Porsche 911 Carrera Convertible 4S
53.7
74.6
81.9
50.9
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
112.4
192.7
96.5
176.8
192.7 in
Length
176.8 in
112.4 in
Wheelbase
96.5 in
Vehicle Weight
BMW 650i Cabrio
Porsche 911 Carrera Convertible 4S
4442 lb
Curb Weight
3549 lb
5269 lb
Gross Vehicle
Weight
Weight
4310 lb

Weight Difference:
893 lb
20.1 %

General
BMW 650i Cabrio
Porsche 911 Carrera Convertible 4S
F12
Generation
991
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)

8-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
BMW 650i Cabrio
Porsche 911 Carrera Convertible 4S
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 4S
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 4S
Performance
BMW 650i Cabrio
Porsche 911 Carrera Convertible 4S
155 mph
Maximum Speed
185 mph
5 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph
62
mph
mph
226 ft
0.000 sec

BMW 650i Cabrio
62 mph
62
mph
mph
200 ft
0.000 sec

Porsche 911 Carrera Convertible 4S
▶ REPLAY
10 lb/hp
Weight-to-Power Ratio
8.37 lb/hp
BMW 650i Cabrio
10 lb/hp
8.37 lb/hp
Porsche 911 Carrera Convertible 4S
Fuel Economy / Emissions
BMW 650i Cabrio
Porsche 911 Carrera Convertible 4S
Fuel Economy
26 mpg
combined
26 mpg
BMW 650i Cabrio
26 mpg
26 mpg
Porsche 911 Carrera Convertible 4S
19 mpg
city
18 mpg
No data
highway
33 mpg
18.5 gal
Fuel Tank Capacity
18 gal
489 mi
Range
459 mi
BMW 650i Cabrio
489 mi
459 mi
Porsche 911 Carrera Convertible 4S
Environmental Impact
168.7 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).
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).
174.3 kWh
BMW 650i Cabrio
168.7 kWh
174.3 kWh
Porsche 911 Carrera Convertible 4S
Euro 5
Emission Standard
Euro 5 / Euro 6
335 g/mi (NEFZ)
CO2 Emissions
349 g/mi (NEFZ)
Practical Convenience
BMW 650i Cabrio
Porsche 911 Carrera Convertible 4S
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
761 lb
9.9 cu ft
Trunk Volume
3.5 cu ft





No data
Cargo Volume (Seats Down)
No data