The Comparative Analysis :

BMW 640d Convertible xDrive Steptronic (15 - 18) vs. Porsche 911 Targa 4 (16 - 18)

€ 99,300
BMW 640d Convertible xDrive Steptronic (15 - 18) BMW 640d Cabrio
€ 118,400
 Porsche 911 Targa 4 (16 - 18) Porsche 911 Targa 4
€ 99,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 118,400

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

Vehicle Dimensions

The BMW 640d Cabrio is significantly bigger in every dimension. It's 15.6 inches longer, 1.7 inches wider and 3 inches taller than the Porsche 911 Targa 4.
BMW 640d Cabrio
Porsche 911 Targa 4
53.7
Blueprint BMW 640d Convertible xDrive Steptronic (15 - 18)
74.6
81.9
50.7
Blueprint Porsche 911 Targa 4 (16 - 18)
72.9
77.9
74.6 in
Width
72.9 in
81.9 in
Width Incl. Mirrors
77.9 in
53.7 in
Height
50.7 in
Blueprint BMW 640d Convertible xDrive Steptronic (15 - 18)
112.4
192.7
Blueprint Porsche 911 Targa 4 (16 - 18)
96.5
177.1
192.7 in
Length
177.1 in
112.4 in
Wheelbase
96.5 in

Vehicle Weight

BMW 640d Cabrio
Porsche 911 Targa 4
4420 lb
Curb Weight
3627 lb
5379 lb
Gross Vehicle
Weight
4409 lb
BMW 640d Convertible xDrive Steptronic (15 - 18)
Weight Difference:
794 lb
17.96 %
Porsche 911 Targa 4 (16 - 18)

General

BMW 640d Cabrio
Porsche 911 Targa 4
F12
Generation
991
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
7-speed manual transmission

Engine

BMW 640d Cabrio
Porsche 911 Targa 4
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 L / 147 cu in
309 hp
at 4400 rpm
Power
365 hp
at 6500 rpm
BMW 640d Cabrio
309 hp
365 hp
Porsche 911 Targa 4
465 lb‑ft
at 1500 rpm
Max. Torque
332 lb‑ft
at 1700 rpm
BMW 640d Cabrio
465 lb‑ft
332 lb‑ft
Porsche 911 Targa 4

Performance

BMW 640d Cabrio
Porsche 911 Targa 4
155 mph
Maximum Speed
180 mph
5.3 sec
Acceleration 0 to 62 mph
4.7 sec
62 mph 62
mph

243 ft
0.000 sec

BMW 640d Cabrio

62 mph 62
mph

213 ft
0.000 sec

Porsche 911 Targa 4

▶ REPLAY
14.3 lb/hp
Weight-to-Power Ratio
9.94 lb/hp
BMW 640d Cabrio
14.3 lb/hp
9.94 lb/hp
Porsche 911 Targa 4

Fuel Economy / Emissions

BMW 640d Cabrio
Porsche 911 Targa 4
Fuel Economy
41 mpg
combined
26 mpg
BMW 640d Cabrio
41 mpg
26 mpg
Porsche 911 Targa 4
35 mpg
city
19 mpg
No data
highway
34 mpg
Kraftstoffanzeige
18.5 gal
Fuel Tank Capacity
18 gal
Kraftstoffanzeige
750 mi
Range
475 mi
BMW 640d Cabrio
750 mi
475 mi
Porsche 911 Targa 4
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).
168.7 kWh
BMW 640d Cabrio
119.3 kWh
168.7 kWh
Porsche 911 Targa 4
Euro 6b (NEFZ)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
248 g/mi (NEFZ)
CO2 Emissions
332 g/mi (NEFZ)

Practical Convenience

BMW 640d Cabrio
Porsche 911 Targa 4
2
Doors
2
4
No. of Seats
4
959 lb
Maximum Payload
783 lb
9.9 cu ft
Trunk Volume
3.5 cu ft
No data
Cargo Volume (Seats Down)
No data