Car comparison

Porsche 911 (991 II) Turbo S 3.8vsPorsche 911 (997) GT2 3.6

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

New comparison

Porsche 911 (991 II)

Turbo S 3.8

580 hp3800 ccGasolineAWDDual-clutchTwin-turboCoupe2015-2018
VS

Porsche 911 (997)

GT2 3.6

530 hp3600 ccGasolineRWDManualTurbochargedCoupe2007-2009

Comparison overview

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

Best choices

Porsche 911 (991 II) Turbo S 3.8

  • Quickest 0-100 km/h
    2.9 s
  • Fastest top speed
    330 km/h
    205 mph
  • Most powerful
    580 hp
    433 kW
  • Highest torque
    750 Nm
    553 lb-ft
  • Lowest combined fuel consumption
    9.1 L/100 km
    25.8 mpg US
    31.0 mpg UK
  • Lowest city consumption
    11.8 L/100 km
    19.9 mpg US
    23.9 mpg UK
  • Lowest highway consumption
    7.5 L/100 km
    31.4 mpg US
    37.7 mpg UK
  • Lowest CO2 emissions
    212 g/km
  • Best estimated range
    747 km
    464 mi
  • Largest trunk
    115 L
  • Best overall score
    77/100
  • Best performance score
    95/100
  • Best economy score
    82/100
  • Best practicality score
    40/100

Specification comparison

Specification comparison
ModelPorsche911 (991 II)Turbo S 3.8Porsche911 (997)GT2 3.6
Power
580hp433kW
530hp395kW
Torque
750Nm553lb-ft
680Nm502lb-ft
Curb weight
1,600kg3,527lb
1,440kg3,175lb
Gross weight
1,990kg4,387lb
1,750kg3,858lb
Top speed
330 km/h
205 mph
329 km/h
204 mph
To 99% top speed
42.8s99% target: 327 km/h / 203 mph
Calculated
53.4s99% target: 326 km/h / 202 mph
Calculated
0-100 km/h
2.9s
3.7s
0-200 km/h
7.9s
Calculated
10.0s
Calculated
0-60 mph
2.8s
Calculated
3.5s
Calculated
Fuel consumption
9.1L/100 km25.8mpg US31.0mpg UK
12.5L/100 km18.8mpg US22.6mpg UK
Fuel consumption city
11.8L/100 km19.9mpg US23.9mpg UK
18.8L/100 km12.5mpg US15.0mpg UK
Fuel consumption highway
7.5L/100 km31.4mpg US37.7mpg UK
8.9L/100 km26.4mpg US31.7mpg UK
Quarter mile
10.3s
Calculated
11.3s
Calculated
Power-to-weight
363hp/t270kW/t164hp/1000 lb
Calculated
368hp/t274kW/t167hp/1000 lb
Calculated
Torque-to-weight
469Nm/t314lb-ft/ton
Calculated
472Nm/t316lb-ft/ton
Calculated
Estimated range
747km464mi
Calculated
720km447mi
Calculated
Displacement
3,800cc232cu in
3,600cc220cu in
Length
4,507mm177in
4,469mm176in
Width
1,880mm74in
1,852mm73in
Height
1,297mm51in
1,285mm51in
Wheelbase
2,450mm96in
2,350mm93in
Front track
1,541mm61in
-
Rear track
1,590mm63in
-
Trunk volume
115L
105L
Max trunk volume
260L
-
Doors
2
2
Seats
4
2
Fuel tank
68L
90L
CO2 emissions
212g/km
298g/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 (991 II) Turbo S 3.8Porsche 911 (997) GT2 3.6PowerTorque
  • Porsche 911 (991 II) Turbo S 3.8: Power / Torque
  • Porsche 911 (997) GT2 3.6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (991 II)Turbo S 3.86,750 rpm2,250-4,000 rpm7,000 rpm
Porsche911 (997)GT2 3.66,500 rpm2,200-4,500 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (991 II)Turbo S 3.8Porsche911 (997)GT2 3.6
Acceleration checkpoints
0-60 mph
0-97 km/h
2.8 s
3.5 s
0-100 km/h
0-62 mph
2.9 s
3.7 s
0-200 km/h
0-124 mph
7.9 s
10.0 s
0-200 mph
0-322 km/h
34.0 s
44.0 s
Top speed
330 km/h
205 mph
329 km/h
204 mph
Drag race simulation
60 ft
18 m
1.8 s
2.0 s
330 ft
101 m
4.6 s
5.1 s
1/8 mile
201 m
6.8 s
7.5 s
1000 ft
305 m
8.7 s
9.6 s
1/4 mile
402 m
10.3 s
11.3 s
Trap speed
1/4 mile
402 m
230 km/h
143 mph
214 km/h
133 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Turbo S 3.8
580 hp
433 kW
Porsche911 (997)GT2 3.6
530 hp
395 kW

Porsche 911 (991 II) Turbo S 3.8 has 50 hp more than Porsche 911 (997) GT2 3.6.

The biggest power difference is between Porsche 911 (997) GT2 3.6 and Porsche 911 (991 II) Turbo S 3.8: 50 hp (37 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Turbo S 3.8
750 Nm
553 lb-ft
Porsche911 (997)GT2 3.6
680 Nm
502 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Turbo S 3.8
1,600 kg
3,527 lb
Porsche911 (997)GT2 3.6
1,440 kg
3,175 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 (991 II)Turbo S 3.8
330 km/h
205 mph
Porsche911 (997)GT2 3.6
329 km/h
204 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Turbo S 3.82.9 s
Porsche911 (997)GT2 3.63.7 s

The biggest 0-100 km/h difference is between Porsche 911 (991 II) Turbo S 3.8 and Porsche 911 (997) GT2 3.6: 0.8 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 (991 II)Turbo S 3.8
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Porsche911 (997)GT2 3.6
12.5 L/100 km
18.8 mpg US
22.6 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991 II) Turbo S 3.8 and Porsche 911 (997) GT2 3.6: 3.4 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 (991 II)Turbo S 3.8
363 hp/t
270 kW/t
2.8 kg/hp
Porsche911 (997)GT2 3.6
368 hp/t
274 kW/t
2.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Turbo S 3.8
747 km
464 mi
Porsche911 (997)GT2 3.6
720 km
447 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (991 II)Turbo S 3.8
580 hp
433 kW
2.9 s
330 km/h
205 mph
Porsche911 (997)GT2 3.6
530 hp
395 kW
3.7 s
329 km/h
204 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 (991 II)Turbo S 3.8
Power
580 hp
433 kW
0-100 km/h2.9 s
Top speed
330 km/h
205 mph
Doors/seats
2 doors
4 seats
Trunk
115 L
4.1 cu ft
Length
4,507 mm
177.4 in
Height
1,297 mm
51.1 in
Porsche911 (997)GT2 3.6
Power
530 hp
395 kW
0-100 km/h3.7 s
Top speed
329 km/h
204 mph
Doors/seats
2 doors
2 seats
Trunk
105 L
3.7 cu ft
Length
4,469 mm
175.9 in
Height
1,285 mm
50.6 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 (991 II)Turbo S 3.8
Power
580 hp
433 kW
0-100 km/h2.9 s
Top speed
330 km/h
205 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Porsche911 (997)GT2 3.6
Power
530 hp
395 kW
0-100 km/h3.7 s
Top speed
329 km/h
204 mph
12.5 L/100 km
18.8 mpg US
22.6 mpg UK

Porsche 911 (991 II) Turbo S 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 (991 II)Turbo S 3.8
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
2.9 s
Porsche911 (997)GT2 3.6
12.5 L/100 km
18.8 mpg US
22.6 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 (991 II)Turbo S 3.8
363 hp/t
270 kW/t
2.8 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Porsche911 (997)GT2 3.6
368 hp/t
274 kW/t
2.7 kg/hp
12.5 L/100 km
18.8 mpg US
22.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991 II)Turbo S 3.8Porsche911 (997)GT2 3.6
Power
580 hp
433 kW
530 hp
395 kW
Torque
750 Nm
553 lb-ft
680 Nm
502 lb-ft
Acceleration
2.9 s
3.7 s
Top speed
330 km/h
205 mph
329 km/h
204 mph
Lightness
1,600 kg
3,527 lb
1,440 kg
3,175 lb
Fuel consumption
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
115 L
4.1 cu ft
Length
4,507 mm
177.4 in
Height
1,297 mm
51.1 in
Doors/seats
2 doors
2 seats
Trunk
105 L
3.7 cu ft
Length
4,469 mm
175.9 in
Height
1,285 mm
50.6 in
Range score
747 km
464 mi
720 km
447 mi
CO2 score
212 g/km
298 g/km
Trunk score
115 L
4.1 cu ft
105 L
3.7 cu ft
Power-to-weight score
363 hp/t
270 kW/t
2.8 kg/hp
368 hp/t
274 kW/t
2.7 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 (991 II) Turbo S 3.8Porsche 911 (997) GT2 3.6
Consumption9.1 L/100 km25.8 mpg US31 mpg UK12.5 L/100 km18.8 mpg US22.6 mpg UK
Cost / 100 km15.92 LC100 km21.88 LC100 km
Cost / 100 mi25.63 LC100 mi35.20 LC100 mi
Annual fuel used1,365 L361 US gal300 UK gal1,875 L495 US gal412 UK gal
Annual fuel cost2,389 LC/year3,281 LC/year

Head-to-head comparisons

Porsche 911 (991 II) Turbo S 3.8

  • Has 50 hp more
  • Has 70 Nm more
  • Is 0.8 s quicker from 0-100 km/h
  • Has 1 km/h (1 mph) higher top speed
  • Uses 3.4 L/100 km less fuel
  • Has 27 km (17 mi) more estimated range
  • Has 10 L more trunk volume
  • Emits 86 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Heaviest

Porsche 911 (997) GT2 3.6

  • Is 160 kg lighter
  • Has 6 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (991 II) Turbo S 3.8
Porsche 911 (997) GT2 3.6
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Porsche 911 (991 II) Turbo S 3.8 vs Porsche 911 (997) GT2 3.6 - car comparison - FastVsFaster