Car comparison

Porsche 911 (997) GT3 3.6vsPorsche 911 Cabriolet (997) · Facelift 2008 Turbo 3.8

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

New comparison

Porsche 911 (997)

GT3 3.6

415 hp3600 ccGasolineRWDManualNaturally aspiratedCoupe2006-2009
VS

Porsche 911 Cabriolet (997) · Facelift 2008

Turbo 3.8

500 hp3800 ccGasolineAWDDual-clutchTurbochargedCabriolet / convertible2009-2011

Comparison overview

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

Best choices

Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8

  • Quickest 0-100 km/h
    3.7 s
  • Most powerful
    500 hp
    373 kW
  • Highest torque
    650 Nm
    479 lb-ft
  • Best power-to-weight
    299 hp/t
    223 kW/t
    3.3 kg/hp
  • Lowest combined fuel consumption
    11.5 L/100 km
    20.5 mpg US
    24.6 mpg UK
  • Lowest city consumption
    16.7 L/100 km
    14.1 mpg US
    16.9 mpg UK
  • Lowest highway consumption
    8.2 L/100 km
    28.7 mpg US
    34.4 mpg UK
  • Lowest CO2 emissions
    270 g/km
  • Best overall score
    76/100
  • Best performance score
    90/100
  • Best economy score
    76/100
  • Best practicality score
    47/100

Porsche 911 (997) GT3 3.6

  • Fastest top speed
    320 km/h
    199 mph Unrestricted
    310 km/h
    193 mph Restricted
  • Lightest
    1,395 kg
    3,075 lb
  • Best estimated range
    703 km
    437 mi
  • Largest trunk
    105 L

Specification comparison

Specification comparison
ModelPorsche911 (997)GT3 3.6Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
Power
415hp309kW
500hp373kW
Torque
405Nm299lb-ft
650Nm479lb-ft
Curb weight
1,395kg3,075lb
1,670kg3,682lb
Gross weight
1,680kg3,704lb
2,020kg4,453lb
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Calculated
312 km/h
194 mph
To 99% top speed
62.7s99% target: 317 km/h / 197 mph
Calculated
54.9s99% target: 309 km/h / 192 mph
Calculated
0-100 km/h
4.3s
3.7s
0-200 km/h
12.0s
Calculated
10.7s
Calculated
0-60 mph
4.1s
Calculated
3.5s
Calculated
Fuel consumption
12.8L/100 km18.4mpg US22.1mpg UK
11.5L/100 km20.5mpg US24.6mpg UK
Fuel consumption city
19.8L/100 km11.9mpg US14.3mpg UK
16.7L/100 km14.1mpg US16.9mpg UK
Fuel consumption highway
8.9L/100 km26.4mpg US31.7mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Quarter mile
12.1s
Calculated
11.4s
Calculated
Power-to-weight
297hp/t222kW/t135hp/1000 lb
Calculated
299hp/t223kW/t136hp/1000 lb
Calculated
Torque-to-weight
290Nm/t194lb-ft/ton
Calculated
389Nm/t260lb-ft/ton
Calculated
Estimated range
703km437mi
Calculated
583km362mi
Calculated
Displacement
3,600cc220cu in
3,800cc232cu in
Length
4,445mm175in
4,450mm175in
Width
1,808mm71in
1,852mm73in
Height
1,280mm50in
1,300mm51in
Wheelbase
2,355mm93in
2,350mm93in
Max trunk volume
105L
105L
Doors
2
2
Seats
2
4
Fuel tank
90L
67L
CO2 emissions
307g/km
270g/km

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 (997) GT3 3.6Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8PowerTorque
  • Porsche 911 (997) GT3 3.6: Power / Torque
  • Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (997)GT3 3.67,600 rpm5,500 rpm7,850 rpm
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.86,000-6,500 rpm1,950-5,000 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (997)GT3 3.6Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.1 s
3.5 s
0-100 km/h
0-62 mph
4.3 s
3.7 s
0-200 km/h
0-124 mph
12.0 s
10.7 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Likely limited
312 km/h
194 mph
Drag race simulation
60 ft
18 m
2.2 s
2.0 s
330 ft
101 m
5.5 s
5.1 s
1/8 mile
201 m
8.1 s
7.6 s
1000 ft
305 m
10.3 s
9.7 s
1/4 mile
402 m
12.1 s
11.4 s
Trap speed
1/4 mile
402 m
201 km/h
125 mph
207 km/h
129 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 (997)GT3 3.6
415 hp
309 kW
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
500 hp
373 kW

Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8 has 85 hp more than Porsche 911 (997) GT3 3.6.

The biggest power difference is between Porsche 911 (997) GT3 3.6 and Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8: 85 hp (63 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (997)GT3 3.6
405 Nm
299 lb-ft
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
650 Nm
479 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 (997)GT3 3.6
1,395 kg
3,075 lb
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
1,670 kg
3,682 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Porsche911 (997)GT3 3.6
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
312 km/h
194 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 (997)GT3 3.64.3 s
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.83.7 s

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8 and Porsche 911 (997) GT3 3.6: 0.6 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
Porsche911 (997)GT3 3.6
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8 and Porsche 911 (997) GT3 3.6: 1.3 L/100 km.

Power-to-weight comparison

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

Chart data table
VehicleValue
Porsche911 (997)GT3 3.6
297 hp/t
222 kW/t
3.4 kg/hp
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
299 hp/t
223 kW/t
3.3 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
Porsche911 (997)GT3 3.6
703 km
437 mi
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
583 km
362 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (997)GT3 3.6
415 hp
309 kW
4.3 s
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
500 hp
373 kW
3.7 s
312 km/h
194 mph

Most attractive quadrant

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

Chart data table
VehiclePerformance scorePracticality score
Porsche911 (997)GT3 3.6
Power
415 hp
309 kW
0-100 km/h4.3 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Doors/seats
2 doors
2 seats
Trunk
105 L
3.7 cu ft
Length
4,445 mm
175.0 in
Height
1,280 mm
50.4 in
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
Power
500 hp
373 kW
0-100 km/h3.7 s
Top speed
312 km/h
194 mph
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
Porsche911 (997)GT3 3.6
Power
415 hp
309 kW
0-100 km/h4.3 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
Power
500 hp
373 kW
0-100 km/h3.7 s
Top speed
312 km/h
194 mph
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
Porsche911 (997)GT3 3.6
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
4.3 s
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
3.7 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Porsche911 (997)GT3 3.6
297 hp/t
222 kW/t
3.4 kg/hp
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
299 hp/t
223 kW/t
3.3 kg/hp
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (997)GT3 3.6Porsche911 Cabriolet (997)Facelift 2008Turbo 3.8
Power
415 hp
309 kW
500 hp
373 kW
Torque
405 Nm
299 lb-ft
650 Nm
479 lb-ft
Acceleration
4.3 s
3.7 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
312 km/h
194 mph
Lightness
1,395 kg
3,075 lb
1,670 kg
3,682 lb
Fuel consumption
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
105 L
3.7 cu ft
Length
4,445 mm
175.0 in
Height
1,280 mm
50.4 in
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 in
Range score
703 km
437 mi
583 km
362 mi
CO2 score
307 g/km
270 g/km
Trunk score
105 L
3.7 cu ft
105 L
3.7 cu ft
Power-to-weight score
297 hp/t
222 kW/t
3.4 kg/hp
299 hp/t
223 kW/t
3.3 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

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

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
VehiclePorsche 911 (997) GT3 3.6Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8
Consumption12.8 L/100 km18.4 mpg US22.1 mpg UK11.5 L/100 km20.5 mpg US24.6 mpg UK
Cost / 100 km22.40 LC100 km20.13 LC100 km
Cost / 100 mi36.05 LC100 mi32.39 LC100 mi
Annual fuel used1,920 L507 US gal422 UK gal1,725 L456 US gal379 UK gal
Annual fuel cost3,360 LC/year3,019 LC/year

Head-to-head comparisons

Porsche 911 (997) GT3 3.6

  • Is 275 kg lighter
  • Has 8 km/h (5 mph) higher top speed
  • Has 121 km (75 mi) more estimated range

Pros

  • Highest top speed
  • Lightest
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Highest CO2 emissions

Porsche 911 Cabriolet (997) Facelift 2008 Turbo 3.8

  • Has 85 hp more
  • Has 245 Nm more
  • Is 0.6 s quicker from 0-100 km/h
  • Uses 1.3 L/100 km less fuel
  • Has 2 hp/t better power-to-weight
  • Emits 37 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best power-to-weight ratio

Cons

  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (997) GT3 3.6
Porsche 911 Cabriolet (997) Turbo 3.8
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