The Comparative Analysis :

BMW 640i Convertible Automatic (11 - 13) vs. Porsche 911 Turbo Convertible S PDK (20 - ..)

€ 83,900
BMW 640i Convertible Automatic (11 - 13) BMW 640i Cabrio
€ 231,700
 Porsche 911 Turbo Convertible S PDK (20 - ..) Porsche 911 Turbo Convertible S
€ 83,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 231,700

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

Vehicle Dimensions

The dimensions of these vehicles differ considerably. The BMW 640i Cabrio is 14.1 inches longer, 0.2 inches narrower and 2.5 inches taller than the Porsche 911 Turbo Convertible S.
BMW 640i Cabrio
Porsche 911 Turbo Convertible S
53.7
Blueprint BMW 640i Convertible Automatic (11 - 13)
74.6
81.9
51.2
Blueprint Porsche 911 Turbo Convertible S PDK (20 - ..)
74.8
79.7
74.6 in
Width
74.8 in
81.9 in
Width Incl. Mirrors
79.7 in
53.7 in
Height
51.2 in
Blueprint BMW 640i Convertible Automatic (11 - 13)
112.4
192.7
Blueprint Porsche 911 Turbo Convertible S PDK (20 - ..)
96.5
178.5
192.7 in
Length
178.5 in
112.4 in
Wheelbase
96.5 in

Vehicle Weight

BMW 640i Cabrio
Porsche 911 Turbo Convertible S
4222 lb
Curb Weight
3935 lb
5049 lb
Gross Vehicle
Weight
4586 lb
BMW 640i Convertible Automatic (11 - 13)
Weight Difference:
287 lb
6.8 %
Porsche 911 Turbo Convertible S PDK (20 - ..)

General

BMW 640i Cabrio
Porsche 911 Turbo Convertible S
F12
Generation
992
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
8-speed dual clutch transmission

Engine

BMW 640i Cabrio
Porsche 911 Turbo Convertible S
Straight-six gasoline engine with tur­bo­charger
Engine Type
6-cylinder boxer gasoline engine with two tur­bo­chargers (bi­turbo)
BMW N55
Engine Series
N55-B30
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.7 L / 181 cu in
316 hp
at 5800 rpm
Power
641 hp
at 6750 rpm
BMW 640i Cabrio
316 hp
641 hp
Porsche 911 Turbo Convertible S
332 lb‑ft
at 1300 rpm
Max. Torque
590 lb‑ft
at 2500 rpm
BMW 640i Cabrio
332 lb‑ft
590 lb‑ft
Porsche 911 Turbo Convertible S

Performance

BMW 640i Cabrio
Porsche 911 Turbo Convertible S
155 mph
Maximum Speed
205 mph
5.7 sec
Acceleration 0 to 62 mph
2.8 sec
62 mph 62
mph

259 ft
0.000 sec

BMW 640i Cabrio

62 mph 62
mph

128 ft
0.000 sec

Porsche 911 Turbo Convertible S

▶ REPLAY
13.36 lb/hp
Weight-to-Power Ratio
6.14 lb/hp
BMW 640i Cabrio
13.36 lb/hp
6.14 lb/hp
Porsche 911 Turbo Convertible S

Fuel Economy / Emissions

BMW 640i Cabrio
Porsche 911 Turbo Convertible S
Fuel Economy
30 mpg
combined
21 mpg
BMW 640i Cabrio
30 mpg
21 mpg
Porsche 911 Turbo Convertible S
22 mpg
city
15 mpg
No data
highway
27 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
17.7 gal
Kraftstoffanzeige
557 mi
Range
368 mi
BMW 640i Cabrio
557 mi
368 mi
Porsche 911 Turbo Convertible S
Environmental Impact
147.7 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).
214 kWh
BMW 640i Cabrio
147.7 kWh
214 kWh
Porsche 911 Turbo Convertible S
Euro 5
Emission Standard
Euro 6d-ISC-FCM (WLTP) 36AP-AR
291 g/mi (NEFZ)
CO2 Emissions
443 g/mi (WLTP)

Practical Convenience

BMW 640i Cabrio
Porsche 911 Turbo Convertible S
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
650 lb
9.9 cu ft
Trunk Volume
3.6 cu ft
No data
Cargo Volume (Seats Down)
No data