The Comparative Analysis :
BMW M6 Convertible SMG (06 - 10) vs. Porsche 911 Targa 4 PDK (08 - 12)
€ 123,200

€ 104,300

€ 123,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 104,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW M6 Cabrio is significantly bigger in every dimension. It's 17.2 inches longer, 0.1 inches wider and 2.6 inches taller than the Porsche 911 Targa 4.
BMW M6 Cabrio
Porsche 911 Targa 4
54.2
73
80.2
51.6
72.9
80.8
73 in
Width
72.9 in
80.2 in
Width Incl. Mirrors
80.8 in
54.2 in
Height
51.6 in
109.5
191.8
92.5
174.6
191.8 in
Length
174.6 in
109.5 in
Wheelbase
92.5 in
Vehicle Weight
BMW M6 Cabrio
Porsche 911 Targa 4
4420 lb
Curb Weight
3605 lb
5247 lb
Gross Vehicle
Weight
Weight
4277 lb

Weight Difference:
816 lb
18.46 %

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

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

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

BMW M6 Cabrio
62 mph
62
mph
mph
226 ft
0.000 sec

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






No data
Cargo Volume (Seats Down)
No data