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 ccGasolineRWDDual-clutchNaturally aspiratedCoupe2020-present
VS

Porsche 911 (991)

Carrera 4 GTS 3.8

430 hp3800 ccGasolineAWDDual-clutchNaturally 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
    9.1 L/100 km
    25.8 mpg US
    31.0 mpg UK
  • Lowest city consumption
    12.5 L/100 km
    18.8 mpg US
    22.6 mpg UK
  • Lowest highway consumption
    7.1 L/100 km
    33.1 mpg US
    39.8 mpg UK
  • Best estimated range
    747 km
    464 mi
  • Largest trunk
    385 L
  • Best overall score
    71/100
  • Best economy score
    82/100
  • Best practicality score
    50/100

Porsche 718 Cayman (982) GT4 4.0

  • Quickest 0-100 km/h
    3.9 s
  • Fastest top speed
    302 km/h
    188 mph
  • Lightest
    1,450 kg
    3,197 lb
  • Best power-to-weight
    290 hp/t
    216 kW/t
    3.5 kg/hp
  • Best performance score
    81/100

Specification comparison

Specification comparison
ModelPorsche718 Cayman (982)GT4 4.0Porsche911 (991)Carrera 4 GTS 3.8
Power
420hp313kW
430hp321kW
Torque
430Nm317lb-ft
440Nm325lb-ft
Curb weight
1,450kg3,197lb
1,490kg3,285lb
Gross weight
1,780kg3,924lb
1,895kg4,178lb
Top speed
302 km/h
188 mph
302 km/h
188 mph
To 99% top speed
80.8s99% target: 299 km/h / 186 mph
Calculated
56.6s99% target: 299 km/h / 186 mph
Calculated
0-100 km/h
3.9s
4.0s
0-200 km/h
13.4s
11.8s
Calculated
0-60 mph
3.7s
Calculated
3.8s
Calculated
Fuel consumption
10.2L/100 km23.1mpg US27.7mpg UK
9.1L/100 km25.8mpg US31.0mpg UK
Fuel consumption city
13.7L/100 km17.2mpg US20.6mpg UK
12.5L/100 km18.8mpg US22.6mpg UK
Fuel consumption highway
8.1L/100 km29mpg US34.9mpg UK
7.1L/100 km33.1mpg US39.8mpg UK
Quarter mile
12.0s
Calculated
11.8s
Calculated
Power-to-weight
290hp/t216kW/t131hp/1000 lb
Calculated
289hp/t215kW/t131hp/1000 lb
Calculated
Torque-to-weight
297Nm/t198lb-ft/ton
Calculated
295Nm/t198lb-ft/ton
Calculated
Estimated range
627km390mi
Calculated
747km464mi
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
270L
385L
Doors
2
2
Seats
2
4
Fuel tank
64L
68L
CO2 emissions-
212g/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 rpm5,500 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
3.7 s
3.8 s
0-100 km/h
0-62 mph
3.9 s
4.0 s
0-200 km/h
0-124 mph
13.4 s
11.8 s
Top speed
302 km/h
188 mph
302 km/h
188 mph
Drag race simulation
60 ft
18 m
1.9 s
2.1 s
330 ft
101 m
5.1 s
5.3 s
1/8 mile
201 m
7.8 s
7.8 s
1000 ft
305 m
10.1 s
10.0 s
1/4 mile
402 m
12.0 s
11.8 s
Trap speed
1/4 mile
402 m
190 km/h
118 mph
200 km/h
125 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
430 Nm
317 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
1,450 kg
3,197 lb
Porsche911 (991)Carrera 4 GTS 3.8
1,490 kg
3,285 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
302 km/h
188 mph
Porsche911 (991)Carrera 4 GTS 3.8
302 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
Porsche718 Cayman (982)GT4 4.03.9 s
Porsche911 (991)Carrera 4 GTS 3.84.0 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.

The biggest 0-100 km/h difference is between Porsche 718 Cayman (982) GT4 4.0 and Porsche 911 (991) Carrera 4 GTS 3.8: 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)GT4 4.0
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
Porsche911 (991)Carrera 4 GTS 3.8
9.1 L/100 km
25.8 mpg US
31.0 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: 1.1 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
290 hp/t
216 kW/t
3.5 kg/hp
Porsche911 (991)Carrera 4 GTS 3.8
289 hp/t
215 kW/t
3.5 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
627 km
390 mi
Porsche911 (991)Carrera 4 GTS 3.8
747 km
464 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
3.9 s
302 km/h
188 mph
Porsche911 (991)Carrera 4 GTS 3.8
430 hp
321 kW
4.0 s
302 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
Porsche718 Cayman (982)GT4 4.0
Power
420 hp
313 kW
0-100 km/h3.9 s
Top speed
302 km/h
188 mph
Doors/seats
2 doors
2 seats
Trunk
270 L
9.5 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/h4.0 s
Top speed
302 km/h
188 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/h3.9 s
Top speed
302 km/h
188 mph
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
Porsche911 (991)Carrera 4 GTS 3.8
Power
430 hp
321 kW
0-100 km/h4.0 s
Top speed
302 km/h
188 mph
9.1 L/100 km
25.8 mpg US
31.0 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
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
3.9 s
Porsche911 (991)Carrera 4 GTS 3.8
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
4.0 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
290 hp/t
216 kW/t
3.5 kg/hp
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
Porsche911 (991)Carrera 4 GTS 3.8
289 hp/t
215 kW/t
3.5 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 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
430 Nm
317 lb-ft
440 Nm
325 lb-ft
Acceleration
3.9 s
4.0 s
Top speed
302 km/h
188 mph
302 km/h
188 mph
Lightness
1,450 kg
3,197 lb
1,490 kg
3,285 lb
Fuel consumption
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
270 L
9.5 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
627 km
390 mi
747 km
464 mi
CO2 score
-
212 g/km
Trunk score
270 L
9.5 cu ft
385 L
13.6 cu ft
Power-to-weight score
290 hp/t
216 kW/t
3.5 kg/hp
289 hp/t
215 kW/t
3.5 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
Consumption10.2 L/100 km23.1 mpg US27.7 mpg UK9.1 L/100 km25.8 mpg US31 mpg UK
Cost / 100 km17.85 LC100 km15.92 LC100 km
Cost / 100 mi28.73 LC100 mi25.63 LC100 mi
Annual fuel used1,530 L404 US gal337 UK gal1,365 L361 US gal300 UK gal
Annual fuel cost2,678 LC/year2,389 LC/year

Head-to-head comparisons

Porsche 718 Cayman (982) GT4 4.0

  • Is 40 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 1 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 10 Nm more
  • Uses 1.1 L/100 km less fuel
  • Has 120 km (74 mi) more estimated range
  • Has 115 L more trunk volume

Pros

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

Cons

  • Slowest 0-100 km/h
  • 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
Compare selected cars
2 vehicles selected

Popular comparisons

GT4 4.0
4.0
VS
Porsche718 Cayman (982)GT4 4.0vsPorsche718 Spyder (982)4.0
Carrera 4 GTS 3.8
Carrera S 3.0
VS
Porsche911 (991)Carrera 4 GTS 3.8vsPorsche911 (991 II)Carrera S 3.0
GT4 4.0
GTS 4.0
VS
Porsche718 Cayman (982)GT4 4.0vsPorsche718 Boxster (982)GTS 4.0
Carrera 4 GTS 3.8
GT3 RS 3.8
VS
Porsche911 (991)Carrera 4 GTS 3.8vsPorsche911 (997)Facelift 2008GT3 RS 3.8
GT4 4.0
Carrera 4S 3.0
VS
Porsche718 Cayman (982)GT4 4.0vsPorsche911 (992)Carrera 4S 3.0
Carrera 4 GTS 3.8
GT3 3.6
VS
Porsche911 (991)Carrera 4 GTS 3.8vsPorsche911 (997)GT3 3.6
GT4 4.0
Carrera GTS 3.8
VS
Porsche718 Cayman (982)GT4 4.0vsPorsche911 (991)Carrera GTS 3.8
Carrera 4 GTS 3.8
Carrera GTS 3.8
VS
Porsche911 (991)Carrera 4 GTS 3.8vsPorsche911 Cabriolet (991)Carrera GTS 3.8
GT4 4.0
Carrera 3.0
VS
Porsche718 Cayman (982)GT4 4.0vsPorsche911 (992)Facelift 2024Carrera 3.0
Carrera 4 GTS 3.8
4 GTS 3.8
VS
Porsche911 (991)Carrera 4 GTS 3.8vsPorsche911 Targa (991)4 GTS 3.8
GT4 4.0
GT4 3.8
VS
Porsche718 Cayman (982)GT4 4.0vsPorscheCayman (981C)GT4 3.8
GT4 4.0
3.5 V6
VS
Porsche718 Cayman (982)GT4 4.0vsLotusEvora GT4103.5 V6
Porsche 718 Cayman (982) GT4 4.0 vs Porsche 911 (991) Carrera 4 GTS 3.8 - car comparison - FastVsFaster