The Comparative Analysis :

Porsche 911 Turbo Convertible PDK (13 - 15) vs. BMW 640d Convertible Steptronic (11 - 14)

€ 177,900
Porsche 911 Turbo Convertible PDK (13 - 15) Porsche 911 Turbo Convertible
€ 87,400
 BMW 640d Convertible Steptronic (11 - 14) BMW 640d Cabrio
€ 177,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 87,400

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

Vehicle Dimensions

The Porsche 911 Turbo Convertible is considerably smaller in every dimension. It's 15.3 inches shorter, 0.6 inches narrower and 2.9 inches lower than the BMW 640d Cabrio.
Porsche 911 Turbo Convertible
BMW 640d Cabrio
50.9
Blueprint Porsche 911 Turbo Convertible PDK (13 - 15)
74
77.9
53.7
Blueprint BMW 640d Convertible Steptronic (11 - 14)
74.6
81.9
74 in
Width
74.6 in
77.9 in
Width Incl. Mirrors
81.9 in
50.9 in
Height
53.7 in
Blueprint Porsche 911 Turbo Convertible PDK (13 - 15)
96.5
177.4
Blueprint BMW 640d Convertible Steptronic (11 - 14)
112.4
192.7
177.4 in
Length
192.7 in
96.5 in
Wheelbase
112.4 in

Vehicle Weight

Porsche 911 Turbo Convertible
BMW 640d Cabrio
3836 lb
Curb Weight
4266 lb
4508 lb
Gross Vehicle
Weight
5159 lb
Porsche 911 Turbo Convertible PDK (13 - 15)
Weight Difference:
430 lb
10.08 %
BMW 640d Convertible Steptronic (11 - 14)

General

Porsche 911 Turbo Convertible
BMW 640d Cabrio
991
Generation
F12
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Diesel
Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive
7-speed dual clutch transmission
Transmission
8-speed automatic transmission

Engine

Porsche 911 Turbo Convertible
BMW 640d Cabrio
6-cylinder boxer gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Series
BMW N57
Engine Code
N57-D30
4
Valves
4
6
Cylinders
6
3.8 L / 186 cu in
Displacement
3 L / 147 cu in
513 hp
at 6000 rpm
Power
309 hp
at 4400 rpm
Porsche 911 Turbo Convertible
513 hp
309 hp
BMW 640d Cabrio
487 lb‑ft
at 5600 rpm
Max. Torque
465 lb‑ft
at 1500 rpm
Porsche 911 Turbo Convertible
487 lb‑ft
465 lb‑ft
BMW 640d Cabrio

Performance

Porsche 911 Turbo Convertible
BMW 640d Cabrio
196 mph
Maximum Speed
155 mph
3.5 sec
Acceleration 0 to 62 mph
5.6 sec
62 mph 62
mph

161 ft
0.000 sec

Porsche 911 Turbo Convertible

62 mph 62
mph

256 ft
0.000 sec

BMW 640d Cabrio

▶ REPLAY
7.48 lb/hp
Weight-to-Power Ratio
13.81 lb/hp
Porsche 911 Turbo Convertible
7.48 lb/hp
13.81 lb/hp
BMW 640d Cabrio

Fuel Economy / Emissions

Porsche 911 Turbo Convertible
BMW 640d Cabrio
Fuel Economy
24 mpg
combined
42 mpg
Porsche 911 Turbo Convertible
24 mpg
42 mpg
BMW 640d Cabrio
18 mpg
city
35 mpg
30 mpg
highway
No data
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
427 mi
Range
777 mi
Porsche 911 Turbo Convertible
427 mi
777 mi
BMW 640d Cabrio
Environmental Impact
187.5 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).
115.2 kWh
Porsche 911 Turbo Convertible
187.5 kWh
115.2 kWh
BMW 640d Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 5
372 g/mi (NEFZ)
CO2 Emissions
237 g/mi (NEFZ)

Practical Convenience

Porsche 911 Turbo Convertible
BMW 640d Cabrio
2
Doors
2
4
No. of Seats
4
672 lb
Maximum Payload
893 lb
3.3 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data