Car comparison

Porsche 911 (997) GT3 3.6vsPorsche 911 Targa (991) 4 GTS 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 Targa (991)

4 GTS 3.8

430 hp3800 ccGasolineAWDManualNaturally aspirated2015-2015

Comparison overview

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

Best choices

Porsche 911 Targa (991) 4 GTS 3.8

  • Most powerful
    430 hp
    321 kW
  • Highest torque
    440 Nm
    325 lb-ft
  • Lowest combined fuel consumption
    10.0 L/100 km
    23.5 mpg US
    28.2 mpg UK
  • Lowest city consumption
    13.9 L/100 km
    16.9 mpg US
    20.3 mpg UK
  • Lowest highway consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Lowest CO2 emissions
    237 g/km
  • Largest trunk
    285 L
  • Best overall score
    70/100
  • Best economy score
    80/100
  • Best practicality score
    51/100

Porsche 911 (997) GT3 3.6

  • Quickest 0-100 km/h
    4.3 s
  • Fastest top speed
    320 km/h
    199 mph Unrestricted
    310 km/h
    193 mph Restricted
  • Lightest
    1,395 kg
    3,075 lb
  • Best power-to-weight
    297 hp/t
    222 kW/t
    3.4 kg/hp
  • Best estimated range
    703 km
    437 mi
  • Best performance score
    81/100

Specification comparison

Specification comparison
ModelPorsche911 (997)GT3 3.6Porsche911 Targa (991)4 GTS 3.8
Power
415hp309kW
430hp321kW
Torque
405Nm299lb-ft
440Nm325lb-ft
Curb weight
1,395kg3,075lb
1,560kg3,439lb
Gross weight
1,680kg3,704lb
1,960kg4,321lb
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Calculated
303 km/h
188 mph
To 99% top speed
62.7s99% target: 317 km/h / 197 mph
Calculated
63.7s99% target: 300 km/h / 186 mph
Calculated
0-100 km/h
4.3s
4.7s
0-200 km/h
12.0s
Calculated
13.5s
Calculated
0-60 mph
4.1s
Calculated
4.5s
Calculated
Fuel consumption
12.8L/100 km18.4mpg US22.1mpg UK
10L/100 km23.5mpg US28.2mpg UK
Fuel consumption city
19.8L/100 km11.9mpg US14.3mpg UK
13.9L/100 km16.9mpg US20.3mpg UK
Fuel consumption highway
8.9L/100 km26.4mpg US31.7mpg UK
7.7L/100 km30.5mpg US36.7mpg UK
Quarter mile
12.1s
Calculated
12.6s
Calculated
Power-to-weight
297hp/t222kW/t135hp/1000 lb
Calculated
276hp/t206kW/t125hp/1000 lb
Calculated
Torque-to-weight
290Nm/t194lb-ft/ton
Calculated
282Nm/t189lb-ft/ton
Calculated
Estimated range
703km437mi
Calculated
680km423mi
Calculated
Displacement
3,600cc220cu in
3,800cc232cu in
Length
4,445mm175in
4,509mm178in
Width
1,808mm71in
1,852mm73in
Height
1,280mm50in
1,291mm51in
Wheelbase
2,355mm93in
2,450mm96in
Front track-
1,538mm61in
Rear track-
1,560mm61in
Trunk volume-
285L
Max trunk volume
105L
-
Doors
2
2
Seats
2
4
Fuel tank
90L
68L
CO2 emissions
307g/km
237g/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 Targa (991) 4 GTS 3.8PowerTorque
  • Porsche 911 (997) GT3 3.6: Power / Torque
  • Porsche 911 Targa (991) 4 GTS 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 Targa (991)4 GTS 3.87,500 rpm5,750 rpm7,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (997)GT3 3.6Porsche911 Targa (991)4 GTS 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.1 s
4.5 s
0-100 km/h
0-62 mph
4.3 s
4.7 s
0-200 km/h
0-124 mph
12.0 s
13.5 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Likely limited
303 km/h
188 mph
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.5 s
5.7 s
1/8 mile
201 m
8.1 s
8.4 s
1000 ft
305 m
10.3 s
10.7 s
1/4 mile
402 m
12.1 s
12.6 s
Trap speed
1/4 mile
402 m
201 km/h
125 mph
192 km/h
119 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 Targa (991)4 GTS 3.8
430 hp
321 kW

Porsche 911 Targa (991) 4 GTS 3.8 has 15 hp more than Porsche 911 (997) GT3 3.6.

The biggest power difference is between Porsche 911 (997) GT3 3.6 and Porsche 911 Targa (991) 4 GTS 3.8: 15 hp (11 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 Targa (991)4 GTS 3.8
440 Nm
325 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 Targa (991)4 GTS 3.8
1,560 kg
3,439 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 Targa (991)4 GTS 3.8
303 km/h
188 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 Targa (991)4 GTS 3.84.7 s

Although Porsche 911 Targa (991) 4 GTS 3.8 has more power, Porsche 911 (997) GT3 3.6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 911 (997) GT3 3.6 and Porsche 911 Targa (991) 4 GTS 3.8: 0.4 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 Targa (991)4 GTS 3.8
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

The biggest fuel consumption difference is between Porsche 911 Targa (991) 4 GTS 3.8 and Porsche 911 (997) GT3 3.6: 2.8 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 Targa (991)4 GTS 3.8
276 hp/t
206 kW/t
3.6 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 Targa (991)4 GTS 3.8
680 km
423 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 Targa (991)4 GTS 3.8
430 hp
321 kW
4.7 s
303 km/h
188 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 Targa (991)4 GTS 3.8
Power
430 hp
321 kW
0-100 km/h4.7 s
Top speed
303 km/h
188 mph
Doors/seats
2 doors
4 seats
Trunk
285 L
10.1 cu ft
Length
4,509 mm
177.5 in
Height
1,291 mm
50.8 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 Targa (991)4 GTS 3.8
Power
430 hp
321 kW
0-100 km/h4.7 s
Top speed
303 km/h
188 mph
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

Porsche 911 Targa (991) 4 GTS 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 Targa (991)4 GTS 3.8
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
4.7 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 Targa (991)4 GTS 3.8
276 hp/t
206 kW/t
3.6 kg/hp
10.0 L/100 km
23.5 mpg US
28.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (997)GT3 3.6Porsche911 Targa (991)4 GTS 3.8
Power
415 hp
309 kW
430 hp
321 kW
Torque
405 Nm
299 lb-ft
440 Nm
325 lb-ft
Acceleration
4.3 s
4.7 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
303 km/h
188 mph
Lightness
1,395 kg
3,075 lb
1,560 kg
3,439 lb
Fuel consumption
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
10.0 L/100 km
23.5 mpg US
28.2 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
285 L
10.1 cu ft
Length
4,509 mm
177.5 in
Height
1,291 mm
50.8 in
Range score
703 km
437 mi
680 km
423 mi
CO2 score
307 g/km
237 g/km
Trunk score
105 L
3.7 cu ft
285 L
10.1 cu ft
Power-to-weight score
297 hp/t
222 kW/t
3.4 kg/hp
276 hp/t
206 kW/t
3.6 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 Targa (991) 4 GTS 3.8
Consumption12.8 L/100 km18.4 mpg US22.1 mpg UK10 L/100 km23.5 mpg US28.2 mpg UK
Cost / 100 km22.40 LC100 km17.50 LC100 km
Cost / 100 mi36.05 LC100 mi28.16 LC100 mi
Annual fuel used1,920 L507 US gal422 UK gal1,500 L396 US gal330 UK gal
Annual fuel cost3,360 LC/year2,625 LC/year

Head-to-head comparisons

Porsche 911 (997) GT3 3.6

  • Is 165 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Has 17 km/h (11 mph) higher top speed
  • Has 22 hp/t better power-to-weight
  • Has 23 km (14 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

Porsche 911 Targa (991) 4 GTS 3.8

  • Has 15 hp more
  • Has 35 Nm more
  • Uses 2.8 L/100 km less fuel
  • Has 180 L more trunk volume
  • Emits 70 g/km less CO2

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (997) GT3 3.6
Porsche 911 Targa (991) 4 GTS 3.8
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