Car comparison

Porsche 718 Cayman (982) GTS 2.5vsPorsche 911 (991) Carrera 3.4

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

New comparison

Porsche 718 Cayman (982)

GTS 2.5

365 hp2497 ccGasolineRWDDual-clutchTurbochargedCoupe2017-2018
VS

Porsche 911 (991)

Carrera 3.4

350 hp3436 ccGasolineRWDDual-clutchNaturally aspiratedCoupe2011-2015

Comparison overview

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

Best choices

Porsche 718 Cayman (982) GTS 2.5

  • Quickest 0-100 km/h
    4.3 s
  • Fastest top speed
    300 km/h
    186 mph Unrestricted
    290 km/h
    180 mph Restricted
  • Most powerful
    365 hp
    272 kW
  • Highest torque
    430 Nm
    317 lb-ft
  • Lightest
    1,405 kg
    3,097 lb
  • Best power-to-weight
    260 hp/t
    194 kW/t
    3.8 kg/hp
  • Lowest combined fuel consumption
    8.2 L/100 km
    28.7 mpg US
    34.4 mpg UK
  • Lowest city consumption
    10.9 L/100 km
    21.6 mpg US
    25.9 mpg UK
  • Lowest highway consumption
    6.6 L/100 km
    35.6 mpg US
    42.8 mpg UK
  • Lowest CO2 emissions
    186 g/km
  • Best estimated range
    780 km
    485 mi
  • Best performance score
    77/100
  • Best economy score
    85/100

Specification comparison

Specification comparison
ModelPorsche718 Cayman (982)GTS 2.5Porsche911 (991)Carrera 3.4
Power
365hp272kW
350hp261kW
Torque
430Nm317lb-ft
390Nm288lb-ft
Curb weight
1,405kg3,097lb
1,420kg3,131lb
Gross weight
1,705kg3,759lb
1,815kg4,001lb
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Calculated
287 km/h
178 mph
To 99% top speed
63.0s99% target: 297 km/h / 185 mph
Calculated
60.0s99% target: 284 km/h / 177 mph
Calculated
0-100 km/h
4.3s
4.4s
0-200 km/h
12.9s
Calculated
13.6s
Calculated
0-60 mph
4.1s
Calculated
4.2s
Calculated
Fuel consumption
8.2L/100 km28.7mpg US34.4mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption city
10.9L/100 km21.6mpg US25.9mpg UK
11.3L/100 km20.8mpg US25.0mpg UK
Fuel consumption highway
6.6L/100 km35.6mpg US42.8mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
Quarter mile
12.2s
Calculated
12.3s
Calculated
Power-to-weight
260hp/t194kW/t118hp/1000 lb
Calculated
246hp/t184kW/t112hp/1000 lb
Calculated
Torque-to-weight
306Nm/t205lb-ft/ton
Calculated
275Nm/t184lb-ft/ton
Calculated
Estimated range
780km485mi
Calculated
780km485mi
Calculated
Displacement
2,497cc152cu in
3,436cc210cu in
Length
4,393mm173in
4,491mm177in
Width
1,801mm71in
1,808mm71in
Height
1,286mm51in
1,303mm51in
Wheelbase
2,475mm97in
2,450mm96in
Front track-
1,532mm60in
Rear track-
1,518mm60in
Trunk volume
150L
340L
Max trunk volume
425L
-
Doors
2
2
Seats
2
4
Fuel tank
64L
64L
CO2 emissions
186g/km
191g/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 718 Cayman (982) GTS 2.5Porsche 911 (991) Carrera 3.4PowerTorque
  • Porsche 718 Cayman (982) GTS 2.5: Power / Torque
  • Porsche 911 (991) Carrera 3.4: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche718 Cayman (982)GTS 2.56,500 rpm1,900-5,000 rpm6,750 rpm
Porsche911 (991)Carrera 3.47,400 rpm5,600 rpm7,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche718 Cayman (982)GTS 2.5Porsche911 (991)Carrera 3.4
Acceleration checkpoints
0-60 mph
0-97 km/h
4.1 s
4.2 s
0-100 km/h
0-62 mph
4.3 s
4.4 s
0-200 km/h
0-124 mph
12.9 s
13.6 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Likely limited
287 km/h
178 mph
Drag race simulation
60 ft
18 m
2.1 s
2.1 s
330 ft
101 m
5.4 s
5.5 s
1/8 mile
201 m
8.1 s
8.1 s
1000 ft
305 m
10.3 s
10.4 s
1/4 mile
402 m
12.2 s
12.3 s
Trap speed
1/4 mile
402 m
194 km/h
121 mph
191 km/h
119 mph

Power comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GTS 2.5
365 hp
272 kW
Porsche911 (991)Carrera 3.4
350 hp
261 kW

Porsche 718 Cayman (982) GTS 2.5 has 15 hp more than Porsche 911 (991) Carrera 3.4.

The biggest power difference is between Porsche 911 (991) Carrera 3.4 and Porsche 718 Cayman (982) GTS 2.5: 15 hp (11 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GTS 2.5
430 Nm
317 lb-ft
Porsche911 (991)Carrera 3.4
390 Nm
288 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GTS 2.5
1,405 kg
3,097 lb
Porsche911 (991)Carrera 3.4
1,420 kg
3,131 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GTS 2.5
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Porsche911 (991)Carrera 3.4
287 km/h
178 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GTS 2.54.3 s
Porsche911 (991)Carrera 3.44.4 s

The biggest 0-100 km/h difference is between Porsche 718 Cayman (982) GTS 2.5 and Porsche 911 (991) Carrera 3.4: 0.1 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GTS 2.5
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Porsche911 (991)Carrera 3.4
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GTS 2.5
260 hp/t
194 kW/t
3.8 kg/hp
Porsche911 (991)Carrera 3.4
246 hp/t
184 kW/t
4.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GTS 2.5
780 km
485 mi
Porsche911 (991)Carrera 3.4
780 km
485 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche718 Cayman (982)GTS 2.5
365 hp
272 kW
4.3 s
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Porsche911 (991)Carrera 3.4
350 hp
261 kW
4.4 s
287 km/h
178 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
Porsche718 Cayman (982)GTS 2.5
Power
365 hp
272 kW
0-100 km/h4.3 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Doors/seats
2 doors
2 seats
Trunk
150 L
5.3 cu ft
Length
4,393 mm
173.0 in
Height
1,286 mm
50.6 in
Porsche911 (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.4 s
Top speed
287 km/h
178 mph
Doors/seats
2 doors
4 seats
Trunk
340 L
12.0 cu ft
Length
4,491 mm
176.8 in
Height
1,303 mm
51.3 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
Porsche718 Cayman (982)GTS 2.5
Power
365 hp
272 kW
0-100 km/h4.3 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Porsche911 (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.4 s
Top speed
287 km/h
178 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Porsche 718 Cayman (982) GTS 2.5 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
Porsche718 Cayman (982)GTS 2.5
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
4.3 s
Porsche911 (991)Carrera 3.4
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
4.4 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
Porsche718 Cayman (982)GTS 2.5
260 hp/t
194 kW/t
3.8 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Porsche911 (991)Carrera 3.4
246 hp/t
184 kW/t
4.1 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche718 Cayman (982)GTS 2.5Porsche911 (991)Carrera 3.4
Power
365 hp
272 kW
350 hp
261 kW
Torque
430 Nm
317 lb-ft
390 Nm
288 lb-ft
Acceleration
4.3 s
4.4 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
287 km/h
178 mph
Lightness
1,405 kg
3,097 lb
1,420 kg
3,131 lb
Fuel consumption
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
150 L
5.3 cu ft
Length
4,393 mm
173.0 in
Height
1,286 mm
50.6 in
Doors/seats
2 doors
4 seats
Trunk
340 L
12.0 cu ft
Length
4,491 mm
176.8 in
Height
1,303 mm
51.3 in
Range score
780 km
485 mi
780 km
485 mi
CO2 score
186 g/km
191 g/km
Trunk score
150 L
5.3 cu ft
340 L
12.0 cu ft
Power-to-weight score
260 hp/t
194 kW/t
3.8 kg/hp
246 hp/t
184 kW/t
4.1 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 718 Cayman (982) GTS 2.5Porsche 911 (991) Carrera 3.4
Consumption8.2 L/100 km28.7 mpg US34.4 mpg UK8.2 L/100 km28.7 mpg US34.4 mpg UK
Cost / 100 km14.35 LC100 km14.35 LC100 km
Cost / 100 mi23.09 LC100 mi23.09 LC100 mi
Annual fuel used1,230 L325 US gal271 UK gal1,230 L325 US gal271 UK gal
Annual fuel cost2,153 LC/year2,153 LC/year

Head-to-head comparisons

Porsche 718 Cayman (982) GTS 2.5

  • Has 15 hp more
  • Has 40 Nm more
  • Is 15 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 13 km/h (8 mph) higher top speed
  • Has 13 hp/t better power-to-weight
  • Emits 5 g/km less CO2

Pros

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

Cons

  • Smallest trunk

Porsche 911 (991) Carrera 3.4

  • Has 190 L more trunk volume

Pros

  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 718 Cayman (982) GTS 2.5
Porsche 911 (991) Carrera 3.4
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Porsche 718 Cayman (982) GTS 2.5 vs Porsche 911 (991) Carrera 3.4 - car comparison - FastVsFaster