Car comparison

Porsche 911 Cabriolet (997) Turbo 3.6vsAston Martin DB9 Volante 6.0 i V12

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Porsche 911 Cabriolet (997)

Turbo 3.6

480 hp3600 ccGasolineAWDManualTurbochargedCabriolet / convertible2007-2008

Aston Martin DB9 Volante

6.0 i V12

456 hp5935 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2004-2012

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Porsche 911 Cabriolet (997) Turbo 3.6

Quickest 0-100 km/h
4.0 s
Fastest top speed
320 km/h
199 mph Unrestricted
310 km/h
193 mph Restricted
Most powerful
480 hp
358 kW
Highest torque
620 Nm
457 lb-ft
Lightest
1,655 kg
3,649 lb
Best power-to-weight
290 hp/t
216 kW/t
3.4 kg/hp
Lowest city consumption
19.2 L/100 km
12.3 mpg US
14.7 mpg UK
Lowest highway consumption
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Best overall score
75/100
Best performance score
88/100
Best economy score
72/100
Best practicality score
47/100

Specification comparison

Specification comparison
Model	Porsche911 Cabriolet (997)Turbo 3.6	Aston MartinDB9 Volante6.0 i V12
Power	480hp358kW	456hp340kW
Torque	620Nm457lb-ft	570Nm420lb-ft
Curb weight	1,655kg3,649lb	1,710kg3,770lb
Gross weight	2,000kg4,409lb	-
Top speed	Unrestricted 320 km/h199 mph Restricted 310 km/h193 mph Calculated	Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph Calculated
To 99% top speed	61.0s99% target: 317 km/h / 197 mph Calculated	77.4s99% target: 307 km/h / 191 mph Calculated
0-100 km/h	4.0s	4.9s
0-200 km/h	11.4s Calculated	14.6s Calculated
0-60 mph	3.8s Calculated	4.7s Calculated
Fuel consumption	12.9L/100 km18.2mpg US21.9mpg UK	-
Fuel consumption city	19.2L/100 km12.3mpg US14.7mpg UK	25.2L/100 km9.3mpg US11.2mpg UK
Fuel consumption highway	9.5L/100 km24.8mpg US29.7mpg UK	12.2L/100 km19.3mpg US23.2mpg UK
Quarter mile	11.8s Calculated	12.8s Calculated
Power-to-weight	290hp/t216kW/t132hp/1000 lb Calculated	267hp/t199kW/t121hp/1000 lb Calculated
Torque-to-weight	375Nm/t251lb-ft/ton Calculated	333Nm/t223lb-ft/ton Calculated
Estimated range	496km308mi Calculated	-
Displacement	3,600cc220cu in	5,935cc362cu in
Length	4,427mm174in	4,710mm185in
Width	1,808mm71in	1,875mm74in
Height	1,310mm52in	1,318mm52in
Wheelbase	2,350mm93in	2,740mm108in
Front track	-	1,568mm62in
Rear track	-	1,562mm61in
Trunk volume	-	197L
Doors	2	2
Seats	4	4
Fuel tank	64L	85L

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Porsche 911 Cabriolet (997) Turbo 3.6Aston Martin DB9 Volante 6.0 i V12PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Porsche911 Cabriolet (997)Turbo 3.6	6,000 rpm	1,950-5,000 rpm	6,250 rpm
Aston MartinDB9 Volante6.0 i V12	6,000 rpm	5,000 rpm	6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Porsche911 Cabriolet (997)Turbo 3.6	Aston MartinDB9 Volante6.0 i V12
	Acceleration checkpoints
0-60 mph 0-97 km/h	3.8 s	4.7 s
0-100 km/h 0-62 mph	4.0 s	4.9 s
0-200 km/h 0-124 mph	11.4 s	14.6 s
Top speed	Unrestricted 320 km/h199 mph Restricted 310 km/h193 mph Likely limited	Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph Likely limited
	Drag race simulation
60 ft 18 m	2.1 s	2.2 s
330 ft 101 m	5.3 s	5.7 s
1/8 mile 201 m	7.8 s	8.5 s
1000 ft 305 m	10.0 s	10.9 s
1/4 mile 402 m	11.8 s	12.8 s
Trap speed 1/4 mile 402 m	204 km/h 127 mph	187 km/h 116 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
Vehicle	Value
Porsche911 Cabriolet (997)Turbo 3.6	480 hp 358 kW
Aston MartinDB9 Volante6.0 i V12	456 hp 340 kW

Porsche 911 Cabriolet (997) Turbo 3.6 has 24 hp more than Aston Martin DB9 Volante 6.0 i V12.

The biggest power difference is between Aston Martin DB9 Volante 6.0 i V12 and Porsche 911 Cabriolet (997) Turbo 3.6: 24 hp (18 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
Vehicle	Value
Porsche911 Cabriolet (997)Turbo 3.6	620 Nm 457 lb-ft
Aston MartinDB9 Volante6.0 i V12	570 Nm 420 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
Vehicle	Value
Porsche911 Cabriolet (997)Turbo 3.6	1,655 kg 3,649 lb
Aston MartinDB9 Volante6.0 i V12	1,710 kg 3,770 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
Vehicle	Value
Porsche911 Cabriolet (997)Turbo 3.6	Unrestricted 320 km/h199 mph Restricted 310 km/h193 mph
Aston MartinDB9 Volante6.0 i V12	Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
Vehicle	Value
Porsche911 Cabriolet (997)Turbo 3.6	4.0 s
Aston MartinDB9 Volante6.0 i V12	4.9 s

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (997) Turbo 3.6 and Aston Martin DB9 Volante 6.0 i V12: 0.9 s.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
Porsche911 Cabriolet (997)Turbo 3.6	290 hp/t 216 kW/t 3.4 kg/hp
Aston MartinDB9 Volante6.0 i V12	267 hp/t 199 kW/t 3.8 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Porsche911 Cabriolet (997)Turbo 3.6	480 hp 358 kW	4.0 s	Unrestricted 320 km/h199 mph Restricted 310 km/h193 mph
Aston MartinDB9 Volante6.0 i V12	456 hp 340 kW	4.9 s	Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

Porsche911 Cabriolet (997)Turbo 3.6

Power	480 hp 358 kW
0-100 km/h	4.0 s
Top speed Unrestricted 320 km/h199 mph Restricted 310 km/h193 mph

Doors/seats	2 doors 4 seats
Trunk	-
Length	4,427 mm 174.3 in
Height	1,310 mm 51.6 in

Aston MartinDB9 Volante6.0 i V12

Power	456 hp 340 kW
0-100 km/h	4.9 s
Top speed Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph

Doors/seats	2 doors 4 seats
Trunk	197 L 7.0 cu ft
Length	4,710 mm 185.4 in
Height	1,318 mm 51.9 in

Detailed score breakdown

Vehicle

Porsche911 Cabriolet (997)Turbo 3.6

Aston MartinDB9 Volante6.0 i V12

Power

480 hp

358 kW

456 hp

340 kW

Torque

620 Nm

457 lb-ft

570 Nm

420 lb-ft

Acceleration

4.0 s

4.9 s

Top speed

Unrestricted

320 km/h199 mph

Restricted

310 km/h193 mph

Unrestricted

310 km/h193 mph

Restricted

300 km/h186 mph

Lightness

1,655 kg

3,649 lb

1,710 kg

3,770 lb

Fuel consumption

12.9 L/100 km

18.2 mpg US

21.9 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	-
Length	4,427 mm 174.3 in
Height	1,310 mm 51.6 in

Doors/seats	2 doors 4 seats
Trunk	197 L 7.0 cu ft
Length	4,710 mm 185.4 in
Height	1,318 mm 51.9 in

Range score

496 km

308 mi

Trunk score

197 L

7.0 cu ft

Power-to-weight score

290 hp/t

216 kW/t

3.4 kg/hp

267 hp/t

199 kW/t

3.8 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
Vehicle	Porsche 911 Cabriolet (997) Turbo 3.6
Consumption	12.9 L/100 km18.2 mpg US21.9 mpg UK
Cost / 100 km	22.58 LC100 km
Cost / 100 mi	36.33 LC100 mi
Annual fuel used	1,935 L511 US gal426 UK gal
Annual fuel cost	3,386 LC/year