The Comparative Analysis :
BMW 640d Convertible Steptronic (15 - 18) vs. Porsche 911 Targa 4S PDK (08 - 12)
€ 95,900
€ 117,400
€ 95,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 117,400
ⓘ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 18.1 inches longer, 1.7 inches wider and 2.6 inches taller than the Porsche 911 Targa 4S.
BMW 640d Cabrio
Porsche 911 Targa 4S
53.7
74.6
81.9
51.2
72.9
80.8
74.6 in
Width
72.9 in
81.9 in
Width Incl. Mirrors
80.8 in
53.7 in
Height
51.2 in
112.4
192.7
92.5
174.6
192.7 in
Length
174.6 in
112.4 in
Wheelbase
92.5 in
Vehicle Weight
BMW 640d Cabrio
Porsche 911 Targa 4S
4266 lb
Curb Weight
3627 lb
5214 lb
Gross Vehicle
Weight
Weight
4299 lb
Weight Difference:
639 lb
14.98 %
General
BMW 640d Cabrio
Porsche 911 Targa 4S
F12
Generation
997
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
BMW 640d Cabrio
Porsche 911 Targa 4S
Straight-six diesel engine with two turbochargers (biturbo)
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
BMW N57
Engine Series
N57-D30
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.8 L / 186 cu in
309 hp
at 4400 rpm
Power
380 hp
at 6500 rpm
BMW 640d Cabrio
309 hp
380 hp
Porsche 911 Targa 4S
465 lb‑ft
at 1500 rpm
Max. Torque
310 lb‑ft
at 4400 rpm
BMW 640d Cabrio
465 lb‑ft
310 lb‑ft
Porsche 911 Targa 4S
Performance
BMW 640d Cabrio
Porsche 911 Targa 4S
155 mph
Maximum Speed
183 mph
5.5 sec
Acceleration 0 to 62 mph
4.7 sec
62 mph
62
mph
mph
249 ft
0.000 sec
BMW 640d Cabrio
62 mph
62
mph
mph
213 ft
0.000 sec
Porsche 911 Targa 4S
▶ REPLAY
13.81 lb/hp
Weight-to-Power Ratio
9.54 lb/hp
BMW 640d Cabrio
13.81 lb/hp
9.54 lb/hp
Porsche 911 Targa 4S
Fuel Economy / Emissions
BMW 640d Cabrio
Porsche 911 Targa 4S
Fuel Economy
42 mpg
combined
22 mpg
BMW 640d Cabrio
42 mpg
22 mpg
Porsche 911 Targa 4S
36 mpg
city
15 mpg
No data
highway
31 mpg
18.5 gal
Fuel Tank Capacity
17.7 gal
777 mi
Range
389 mi
BMW 640d Cabrio
777 mi
389 mi
Porsche 911 Targa 4S
Environmental Impact
115.2 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).
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).
202.8 kWh
BMW 640d Cabrio
115.2 kWh
202.8 kWh
Porsche 911 Targa 4S
Euro 6b (NEFZ)
Emission Standard
Euro 5
240 g/mi (NEFZ)
CO2 Emissions
404 g/mi (NEFZ)
Practical Convenience
BMW 640d Cabrio
Porsche 911 Targa 4S
2
Doors
2
4
No. of Seats
4
948 lb
Maximum Payload
672 lb
9.9 cu ft
Trunk Volume
3 cu ft
No data
Cargo Volume (Seats Down)
No data
