The Comparative Analysis :

Porsche 911 Turbo Convertible S PDK (13 - 15) vs. BMW 640d Convertible xDrive Steptronic (15 - 18)

€ 209,800
Porsche 911 Turbo Convertible S PDK (13 - 15) Porsche 911 Turbo Convertible S
€ 99,300
 BMW 640d Convertible xDrive Steptronic (15 - 18) BMW 640d Cabrio
€ 209,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 99,300

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

Vehicle Dimensions

The Porsche 911 Turbo Convertible S 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 S
BMW 640d Cabrio
50.9
Blueprint Porsche 911 Turbo Convertible S PDK (13 - 15)
74
77.9
53.7
Blueprint BMW 640d Convertible xDrive Steptronic (15 - 18)
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 S PDK (13 - 15)
96.5
177.4
Blueprint BMW 640d Convertible xDrive Steptronic (15 - 18)
112.4
192.7
177.4 in
Length
192.7 in
96.5 in
Wheelbase
112.4 in

Vehicle Weight

Porsche 911 Turbo Convertible S
BMW 640d Cabrio
3858 lb
Curb Weight
4420 lb
4508 lb
Gross Vehicle
Weight
5379 lb
Porsche 911 Turbo Convertible S PDK (13 - 15)
Weight Difference:
562 lb
12.71 %
BMW 640d Convertible xDrive Steptronic (15 - 18)

General

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

Engine

Porsche 911 Turbo Convertible S
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
552 hp
at 6500 rpm
Power
309 hp
at 4400 rpm
Porsche 911 Turbo Convertible S
552 hp
309 hp
BMW 640d Cabrio
516 lb‑ft
at 5600 rpm
Max. Torque
465 lb‑ft
at 1500 rpm
Porsche 911 Turbo Convertible S
516 lb‑ft
465 lb‑ft
BMW 640d Cabrio

Performance

Porsche 911 Turbo Convertible S
BMW 640d Cabrio
198 mph
Maximum Speed
155 mph
3.2 sec
Acceleration 0 to 62 mph
5.3 sec
62 mph 62
mph

144 ft
0.000 sec

Porsche 911 Turbo Convertible S

62 mph 62
mph

243 ft
0.000 sec

BMW 640d Cabrio

▶ REPLAY
6.99 lb/hp
Weight-to-Power Ratio
14.3 lb/hp
Porsche 911 Turbo Convertible S
6.99 lb/hp
14.3 lb/hp
BMW 640d Cabrio

Fuel Economy / Emissions

Porsche 911 Turbo Convertible S
BMW 640d Cabrio
Fuel Economy
24 mpg
combined
41 mpg
Porsche 911 Turbo Convertible S
24 mpg
41 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
750 mi
Porsche 911 Turbo Convertible S
427 mi
750 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).
119.3 kWh
Porsche 911 Turbo Convertible S
187.5 kWh
119.3 kWh
BMW 640d Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
372 g/mi (NEFZ)
CO2 Emissions
248 g/mi (NEFZ)

Practical Convenience

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