The Comparative Analysis :
Porsche 911 Targa 4S PDK (15 - 15) vs. BMW 640d Convertible Steptronic (15 - 18)
€ 142,800
€ 95,900
€ 142,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 95,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Porsche 911 Targa 4S is significantly smaller in every dimension. It's 15.9 inches shorter, 1.7 inches narrower and 3 inches lower than the BMW 640d Cabrio.
Porsche 911 Targa 4S
BMW 640d Cabrio
50.7
72.9
77.9
53.7
74.6
81.9
72.9 in
Width
74.6 in
77.9 in
Width Incl. Mirrors
81.9 in
50.7 in
Height
53.7 in
96.5
176.8
112.4
192.7
176.8 in
Length
192.7 in
96.5 in
Wheelbase
112.4 in
Vehicle Weight
Porsche 911 Targa 4S
BMW 640d Cabrio
3638 lb
Curb Weight
4266 lb
4365 lb
Gross Vehicle
Weight
Weight
5214 lb
Weight Difference:
628 lb
14.72 %
General
Porsche 911 Targa 4S
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 Targa 4S
BMW 640d Cabrio
6-cylinder boxer gasoline engine (naturally aspirated engine)
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
424 hp
at 7500 rpm
Power
309 hp
at 4400 rpm
Porsche 911 Targa 4S
424 hp
309 hp
BMW 640d Cabrio
325 lb‑ft
at 5750 rpm
Max. Torque
465 lb‑ft
at 1500 rpm
Porsche 911 Targa 4S
325 lb‑ft
465 lb‑ft
BMW 640d Cabrio
Performance
Porsche 911 Targa 4S
BMW 640d Cabrio
187 mph
Maximum Speed
155 mph
4.5 sec
Acceleration 0 to 62 mph
5.5 sec
62 mph
62
mph
mph
207 ft
0.000 sec
Porsche 911 Targa 4S
62 mph
62
mph
mph
249 ft
0.000 sec
BMW 640d Cabrio
▶ REPLAY
8.58 lb/hp
Weight-to-Power Ratio
13.81 lb/hp
Porsche 911 Targa 4S
8.58 lb/hp
13.81 lb/hp
BMW 640d Cabrio
Fuel Economy / Emissions
Porsche 911 Targa 4S
BMW 640d Cabrio
Fuel Economy
26 mpg
combined
42 mpg
Porsche 911 Targa 4S
26 mpg
42 mpg
BMW 640d Cabrio
19 mpg
city
36 mpg
33 mpg
highway
No data
18 gal
Fuel Tank Capacity
18.5 gal
459 mi
Range
777 mi
Porsche 911 Targa 4S
459 mi
777 mi
BMW 640d Cabrio
Environmental Impact
174.3 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).
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 Targa 4S
174.3 kWh
115.2 kWh
BMW 640d Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
344 g/mi (NEFZ)
CO2 Emissions
240 g/mi (NEFZ)
Practical Convenience
Porsche 911 Targa 4S
BMW 640d Cabrio
2
Doors
2
4
No. of Seats
4
728 lb
Maximum Payload
948 lb
3.5 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data
