The Comparative Analysis :

BMW 640d Convertible xDrive Steptronic (15 - 18) vs. Porsche 911 Turbo Coupé S PDK (20 - ..)

€ 99,300
BMW 640d Convertible xDrive Steptronic (15 - 18) BMW 640d Cabrio
€ 218,800
 Porsche 911 Turbo Coupé S PDK (20 - ..) Porsche 911 Turbo Coupé S
€ 99,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 218,800

ⓘ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 640d Cabrio is 14.1 inches longer, 0.2 inches narrower and 2.4 inches taller than the Porsche 911 Turbo Coupé S.
BMW 640d Cabrio
Porsche 911 Turbo Coupé S
53.7
Blueprint BMW 640d Convertible xDrive Steptronic (15 - 18)
74.6
81.9
51.3
Blueprint Porsche 911 Turbo Coupé 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
51.3 in
Blueprint BMW 640d Convertible xDrive Steptronic (15 - 18)
112.4
192.7
Blueprint Porsche 911 Turbo Coupé S PDK (20 - ..)
96.5
178.5
192.7 in
Length
178.5 in
112.4 in
Wheelbase
96.5 in

Vehicle Weight

BMW 640d Cabrio
Porsche 911 Turbo Coupé S
4420 lb
Curb Weight
3781 lb
5379 lb
Gross Vehicle
Weight
4453 lb
BMW 640d Convertible xDrive Steptronic (15 - 18)
Weight Difference:
639 lb
14.46 %
Porsche 911 Turbo Coupé S PDK (20 - ..)

General

BMW 640d Cabrio
Porsche 911 Turbo Coupé S
F12
Generation
992
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
8-speed dual clutch transmission

Engine

BMW 640d Cabrio
Porsche 911 Turbo Coupé S
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer gasoline engine with two tur­bo­chargers (bi­turbo)
BMW N57
Engine Series
N57-D30
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.7 L / 181 cu in
309 hp
at 4400 rpm
Power
641 hp
at 6750 rpm
BMW 640d Cabrio
309 hp
641 hp
Porsche 911 Turbo Coupé S
465 lb‑ft
at 1500 rpm
Max. Torque
590 lb‑ft
at 2500 rpm
BMW 640d Cabrio
465 lb‑ft
590 lb‑ft
Porsche 911 Turbo Coupé S

Performance

BMW 640d Cabrio
Porsche 911 Turbo Coupé S
155 mph
Maximum Speed
205 mph
5.3 sec
Acceleration 0 to 62 mph
2.7 sec
62 mph 62
mph

243 ft
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

125 ft
0.000 sec

Porsche 911 Turbo Coupé S

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

Fuel Economy / Emissions

BMW 640d Cabrio
Porsche 911 Turbo Coupé S
Fuel Economy
41 mpg
combined
21 mpg
BMW 640d Cabrio
41 mpg
21 mpg
Porsche 911 Turbo Coupé S
35 mpg
city
15 mpg
No data
highway
27 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
17.7 gal
Kraftstoffanzeige
750 mi
Range
375 mi
BMW 640d Cabrio
750 mi
375 mi
Porsche 911 Turbo Coupé S
Environmental Impact
119.3 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).
210.3 kWh
BMW 640d Cabrio
119.3 kWh
210.3 kWh
Porsche 911 Turbo Coupé S
Euro 6b (NEFZ)
Emission Standard
Euro 6d-ISC-FCM (WLTP) 36AP-AR
248 g/mi (NEFZ)
CO2 Emissions
436 g/mi (WLTP)

Practical Convenience

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