Car comparison

Porsche 718 Cayman (982) GT4 4.0vsPorsche 911 (991) Carrera 4 GTS 3.8

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

New comparison

Porsche 718 Cayman (982)

GT4 4.0

420 hp3995 ccGasolineRWDManualNaturally aspiratedCoupe2020-present
VS

Porsche 911 (991)

Carrera 4 GTS 3.8

430 hp3800 ccGasolineAWDManualNaturally aspiratedCoupe2014-2015

Comparison overview

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

Best choices

Porsche 911 (991) Carrera 4 GTS 3.8

  • Most powerful
    430 hp
    321 kW
  • Highest torque
    440 Nm
    325 lb-ft
  • Lowest combined fuel consumption
    9.9 L/100 km
    23.8 mpg US
    28.5 mpg UK
  • Lowest city consumption
    13.8 L/100 km
    17.0 mpg US
    20.5 mpg UK
  • Lowest highway consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Best estimated range
    687 km
    427 mi
  • Largest trunk
    385 L
  • Best overall score
    70/100
  • Best performance score
    80/100
  • Best economy score
    80/100
  • Best practicality score
    50/100

Specification comparison

Specification comparison
ModelPorsche718 Cayman (982)GT4 4.0Porsche911 (991)Carrera 4 GTS 3.8
Power
420hp313kW
430hp321kW
Torque
420Nm310lb-ft
440Nm325lb-ft
Curb weight
1,420kg3,131lb
1,470kg3,241lb
Gross weight
1,750kg3,858lb
1,875kg4,134lb
Top speed
304 km/h
189 mph
304 km/h
189 mph
To 99% top speed
74.3s99% target: 301 km/h / 187 mph
Calculated
62.4s99% target: 301 km/h / 187 mph
Calculated
0-100 km/h
4.4s
4.4s
0-200 km/h
13.8s
12.9s
Calculated
0-60 mph
4.2s
Calculated
4.2s
Calculated
Fuel consumption
10.9L/100 km21.6mpg US25.9mpg UK
9.9L/100 km23.8mpg US28.5mpg UK
Fuel consumption city
15L/100 km15.7mpg US18.8mpg UK
13.8L/100 km17mpg US20.5mpg UK
Fuel consumption highway
8.5L/100 km27.7mpg US33.2mpg UK
7.7L/100 km30.5mpg US36.7mpg UK
Quarter mile
12.4s
Calculated
12.3s
Calculated
Power-to-weight
296hp/t221kW/t134hp/1000 lb
Calculated
293hp/t218kW/t133hp/1000 lb
Calculated
Torque-to-weight
296Nm/t198lb-ft/ton
Calculated
299Nm/t200lb-ft/ton
Calculated
Estimated range
587km365mi
Calculated
687km427mi
Calculated
Displacement
3,995cc244cu in
3,800cc232cu in
Length
4,456mm175in
4,509mm178in
Width
1,801mm71in
1,852mm73in
Height
1,269mm50in
1,296mm51in
Wheelbase
2,484mm98in
2,450mm96in
Front track
1,538mm61in
1,538mm61in
Rear track
1,534mm60in
1,560mm61in
Trunk volume
150L
385L
Doors
2
2
Seats
2
4
Fuel tank
64L
68L
CO2 emissions-
233g/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) GT4 4.0Porsche 911 (991) Carrera 4 GTS 3.8PowerTorque
  • Porsche 718 Cayman (982) GT4 4.0: Power / Torque
  • Porsche 911 (991) Carrera 4 GTS 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche718 Cayman (982)GT4 4.07,600 rpm5,000-6,800 rpm8,000 rpm
Porsche911 (991)Carrera 4 GTS 3.87,500 rpm5,750 rpm7,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche718 Cayman (982)GT4 4.0Porsche911 (991)Carrera 4 GTS 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
4.2 s
0-100 km/h
0-62 mph
4.4 s
4.4 s
0-200 km/h
0-124 mph
13.8 s
12.9 s
Top speed
304 km/h
189 mph
304 km/h
189 mph
Drag race simulation
60 ft
18 m
2.1 s
2.2 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
10.5 s
10.4 s
1/4 mile
402 m
12.4 s
12.3 s
Trap speed
1/4 mile
402 m
190 km/h
118 mph
195 km/h
121 mph

Power comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GT4 4.0
420 hp
313 kW
Porsche911 (991)Carrera 4 GTS 3.8
430 hp
321 kW

Porsche 911 (991) Carrera 4 GTS 3.8 has 10 hp more than Porsche 718 Cayman (982) GT4 4.0.

The biggest power difference is between Porsche 718 Cayman (982) GT4 4.0 and Porsche 911 (991) Carrera 4 GTS 3.8: 10 hp (7 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GT4 4.0
420 Nm
310 lb-ft
Porsche911 (991)Carrera 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
Porsche718 Cayman (982)GT4 4.0
1,420 kg
3,131 lb
Porsche911 (991)Carrera 4 GTS 3.8
1,470 kg
3,241 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)GT4 4.0
304 km/h
189 mph
Porsche911 (991)Carrera 4 GTS 3.8
304 km/h
189 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)GT4 4.04.4 s
Porsche911 (991)Carrera 4 GTS 3.84.4 s

Although Porsche 911 (991) Carrera 4 GTS 3.8 has more power, Porsche 718 Cayman (982) GT4 4.0 is quicker from 0-100 km/h.

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)GT4 4.0
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
Porsche911 (991)Carrera 4 GTS 3.8
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991) Carrera 4 GTS 3.8 and Porsche 718 Cayman (982) GT4 4.0: 1.0 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
Porsche718 Cayman (982)GT4 4.0
296 hp/t
221 kW/t
3.4 kg/hp
Porsche911 (991)Carrera 4 GTS 3.8
293 hp/t
218 kW/t
3.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GT4 4.0
587 km
365 mi
Porsche911 (991)Carrera 4 GTS 3.8
687 km
427 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche718 Cayman (982)GT4 4.0
420 hp
313 kW
4.4 s
304 km/h
189 mph
Porsche911 (991)Carrera 4 GTS 3.8
430 hp
321 kW
4.4 s
304 km/h
189 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)GT4 4.0
Power
420 hp
313 kW
0-100 km/h4.4 s
Top speed
304 km/h
189 mph
Doors/seats
2 doors
2 seats
Trunk
150 L
5.3 cu ft
Length
4,456 mm
175.4 in
Height
1,269 mm
50.0 in
Porsche911 (991)Carrera 4 GTS 3.8
Power
430 hp
321 kW
0-100 km/h4.4 s
Top speed
304 km/h
189 mph
Doors/seats
2 doors
4 seats
Trunk
385 L
13.6 cu ft
Length
4,509 mm
177.5 in
Height
1,296 mm
51.0 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)GT4 4.0
Power
420 hp
313 kW
0-100 km/h4.4 s
Top speed
304 km/h
189 mph
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
Porsche911 (991)Carrera 4 GTS 3.8
Power
430 hp
321 kW
0-100 km/h4.4 s
Top speed
304 km/h
189 mph
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

Porsche 911 (991) Carrera 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
Porsche718 Cayman (982)GT4 4.0
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
4.4 s
Porsche911 (991)Carrera 4 GTS 3.8
9.9 L/100 km
23.8 mpg US
28.5 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)GT4 4.0
296 hp/t
221 kW/t
3.4 kg/hp
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
Porsche911 (991)Carrera 4 GTS 3.8
293 hp/t
218 kW/t
3.4 kg/hp
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche718 Cayman (982)GT4 4.0Porsche911 (991)Carrera 4 GTS 3.8
Power
420 hp
313 kW
430 hp
321 kW
Torque
420 Nm
310 lb-ft
440 Nm
325 lb-ft
Acceleration
4.4 s
4.4 s
Top speed
304 km/h
189 mph
304 km/h
189 mph
Lightness
1,420 kg
3,131 lb
1,470 kg
3,241 lb
Fuel consumption
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
150 L
5.3 cu ft
Length
4,456 mm
175.4 in
Height
1,269 mm
50.0 in
Doors/seats
2 doors
4 seats
Trunk
385 L
13.6 cu ft
Length
4,509 mm
177.5 in
Height
1,296 mm
51.0 in
Range score
587 km
365 mi
687 km
427 mi
CO2 score
-
233 g/km
Trunk score
150 L
5.3 cu ft
385 L
13.6 cu ft
Power-to-weight score
296 hp/t
221 kW/t
3.4 kg/hp
293 hp/t
218 kW/t
3.4 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) GT4 4.0Porsche 911 (991) Carrera 4 GTS 3.8
Consumption10.9 L/100 km21.6 mpg US25.9 mpg UK9.9 L/100 km23.8 mpg US28.5 mpg UK
Cost / 100 km19.08 LC100 km17.33 LC100 km
Cost / 100 mi30.70 LC100 mi27.88 LC100 mi
Annual fuel used1,635 L432 US gal360 UK gal1,485 L392 US gal327 UK gal
Annual fuel cost2,861 LC/year2,599 LC/year

Head-to-head comparisons

Porsche 718 Cayman (982) GT4 4.0

  • Is 50 kg lighter
  • Has 3 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk

Porsche 911 (991) Carrera 4 GTS 3.8

  • Has 10 hp more
  • Has 20 Nm more
  • Uses 1.0 L/100 km less fuel
  • Has 100 km (62 mi) more estimated range
  • Has 235 L more trunk volume

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 718 Cayman (982) GT4 4.0
Porsche 911 (991) Carrera 4 GTS 3.8
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2 vehicles selected

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