The Comparative Analysis :
Porsche 911 Targa 4 (08 - 12) vs. BMW M6 Convertible SMG (06 - 10)
€ 100,800

€ 123,200

€ 100,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 123,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Porsche 911 Targa 4 is significantly smaller in every dimension. It's 17.2 inches shorter, 0.1 inches narrower and 2.6 inches lower than the BMW M6 Cabrio.
Porsche 911 Targa 4
BMW M6 Cabrio
51.6
72.9
80.8
54.2
73
80.2
72.9 in
Width
73 in
80.8 in
Width Incl. Mirrors
80.2 in
51.6 in
Height
54.2 in
92.5
174.6
109.5
191.8
174.6 in
Length
191.8 in
92.5 in
Wheelbase
109.5 in
Vehicle Weight
Porsche 911 Targa 4
BMW M6 Cabrio
3538 lb
Curb Weight
4420 lb
4211 lb
Gross Vehicle
Weight
Weight
5247 lb

Weight Difference:
882 lb
19.95 %

General
Porsche 911 Targa 4
BMW M6 Cabrio
997
Generation
E64
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive

6-speed manual transmission
Transmission
7-speed automated manual transmission (AMT)
Engine
Porsche 911 Targa 4
BMW M6 Cabrio
6-cylinder boxer gasoline engine (naturally aspirated engine)
Engine Type
V10 gasoline engine (naturally aspirated engine)
Engine Series
BMW S85
Engine Code
S85-B50
4
Valves
4
6
Cylinders
10
3.6 L / 176 cu in
Displacement
5 L / 245 cu in
340 hp
at 6500 rpm
Power
500 hp
at 7750 rpm
Porsche 911 Targa 4
340 hp
500 hp
BMW M6 Cabrio
288 lb‑ft
at 4400 rpm
Max. Torque
384 lb‑ft
at 6100 rpm
Porsche 911 Targa 4
288 lb‑ft
384 lb‑ft
BMW M6 Cabrio
Performance
Porsche 911 Targa 4
BMW M6 Cabrio
176 mph
Maximum Speed
155 mph
5.2 sec
Acceleration 0 to 62 mph
4.8 sec
62 mph
62
mph
mph
236 ft
0.000 sec

Porsche 911 Targa 4
62 mph
62
mph
mph
220 ft
0.000 sec

BMW M6 Cabrio
▶ REPLAY
10.41 lb/hp
Weight-to-Power Ratio
8.84 lb/hp
Porsche 911 Targa 4
10.41 lb/hp
8.84 lb/hp
BMW M6 Cabrio
Fuel Economy / Emissions
Porsche 911 Targa 4
BMW M6 Cabrio
Fuel Economy
22 mpg
combined
16 mpg
Porsche 911 Targa 4
22 mpg
16 mpg
BMW M6 Cabrio
15 mpg
city
11 mpg
32 mpg
highway
No data
17.7 gal
Fuel Tank Capacity
18.5 gal
393 mi
Range
296 mi
Porsche 911 Targa 4
393 mi
296 mi
BMW M6 Cabrio
Environmental Impact
200.8 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).
278.4 kWh
Porsche 911 Targa 4
200.8 kWh
278.4 kWh
BMW M6 Cabrio
Euro 5
Emission Standard
Euro 4
401 g/mi (NEFZ)
CO2 Emissions
566 g/mi (NEFZ)
Practical Convenience
Porsche 911 Targa 4
BMW M6 Cabrio
2
Doors
2
4
No. of Seats
4
672 lb
Maximum Payload
827 lb
3 cu ft
Trunk Volume
9.9 cu ft






No data
Cargo Volume (Seats Down)
No data