Car comparison

Porsche 718 Cayman (982) GTS 2.5vsPorsche 911 (991) Carrera 4 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 ccGasolineRWDManualTurbochargedCoupe2018-2020

Porsche 911 (991)

Carrera 4 3.4

350 hp3436 ccGasolineAWDManualNaturally aspiratedCoupe2012-2015

Comparison overview

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

Porsche 718 Cayman (982) GTS 2.5

Quickest 0-100 km/h
4.9 s
Fastest top speed
300 km/h
186 mph Unrestricted
290 km/h
180 mph Restricted
Most powerful
365 hp
272 kW
Highest torque
420 Nm
310 lb-ft
Lightest
1,375 kg
3,031 lb
Best power-to-weight
265 hp/t
198 kW/t
3.8 kg/hp
Lowest combined fuel consumption
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
Lowest city consumption
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
Lowest highway consumption
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
Lowest CO2 emissions
210 g/km
Best performance score
75/100
Best economy score
82/100

Porsche 911 (991) Carrera 4 3.4

Best estimated range
731 km
454 mi
Largest trunk
385 L
Best overall score
66/100
Best practicality score
50/100

Specification comparison

Specification comparison
Model	Porsche718 Cayman (982)GTS 2.5	Porsche911 (991)Carrera 4 3.4
Power	365hp272kW	350hp261kW
Torque	420Nm310lb-ft	390Nm288lb-ft
Curb weight	1,375kg3,031lb	1,450kg3,197lb
Gross weight	1,450kg3,197lb	1,845kg4,068lb
Top speed	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph Calculated	285 km/h 177 mph
To 99% top speed	71.0s99% target: 297 km/h / 185 mph Calculated	68.4s99% target: 282 km/h / 175 mph Calculated
0-100 km/h	4.9s	4.9s
0-200 km/h	14.7s Calculated	15.4s Calculated
0-60 mph	4.7s Calculated	4.7s Calculated
Fuel consumption	9.2L/100 km25.6mpg US30.7mpg UK	9.3L/100 km25.3mpg US30.4mpg UK
Fuel consumption city	12.8L/100 km18.4mpg US22.1mpg UK	12.9L/100 km18.2mpg US21.9mpg UK
Fuel consumption highway	7.1L/100 km33.1mpg US39.8mpg UK	7.4L/100 km31.8mpg US38.2mpg UK
Quarter mile	12.8s Calculated	12.9s Calculated
Power-to-weight	265hp/t198kW/t120hp/1000 lb Calculated	241hp/t180kW/t109hp/1000 lb Calculated
Torque-to-weight	305Nm/t204lb-ft/ton Calculated	269Nm/t180lb-ft/ton Calculated
Estimated range	696km432mi Calculated	731km454mi Calculated
Displacement	2,497cc152cu in	3,436cc210cu in
Length	4,393mm173in	4,491mm177in
Width	1,801mm71in	1,852mm73in
Height	1,286mm51in	1,304mm51in
Wheelbase	2,475mm97in	2,450mm96in
Front track	1,527mm60in	1,532mm60in
Rear track	1,535mm60in	1,560mm61in
Trunk volume	-	385L
Max trunk volume	150L	-
Doors	2	2
Seats	2	4
Fuel tank	64L	68L
CO2 emissions	210g/km	218g/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 4 3.4PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Porsche718 Cayman (982)GTS 2.5	6,500 rpm	2,100-5,500 rpm	6,750 rpm
Porsche911 (991)Carrera 4 3.4	7,400 rpm	5,600 rpm	7,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Porsche718 Cayman (982)GTS 2.5	Porsche911 (991)Carrera 4 3.4
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.7 s	4.7 s
0-100 km/h 0-62 mph	4.9 s	4.9 s
0-200 km/h 0-124 mph	14.7 s	15.4 s
Top speed	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph Likely limited	285 km/h 177 mph
	Drag race simulation
60 ft 18 m	2.2 s	2.2 s
330 ft 101 m	5.7 s	5.7 s
1/8 mile 201 m	8.5 s	8.5 s
1000 ft 305 m	10.9 s	10.9 s
1/4 mile 402 m	12.8 s	12.9 s
Trap speed 1/4 mile 402 m	187 km/h 116 mph	183 km/h 114 mph

Power comparison

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

Chart data table
Vehicle	Value
Porsche718 Cayman (982)GTS 2.5	365 hp 272 kW
Porsche911 (991)Carrera 4 3.4	350 hp 261 kW

Porsche 718 Cayman (982) GTS 2.5 has 15 hp more than Porsche 911 (991) Carrera 4 3.4.

The biggest power difference is between Porsche 911 (991) Carrera 4 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
Vehicle	Value
Porsche718 Cayman (982)GTS 2.5	420 Nm 310 lb-ft
Porsche911 (991)Carrera 4 3.4	390 Nm 288 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Porsche718 Cayman (982)GTS 2.5	1,375 kg 3,031 lb
Porsche911 (991)Carrera 4 3.4	1,450 kg 3,197 lb

Top speed without limiter comparison

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

Chart data table
Vehicle	Value
Porsche718 Cayman (982)GTS 2.5	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph
Porsche911 (991)Carrera 4 3.4	285 km/h 177 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
Porsche718 Cayman (982)GTS 2.5	4.9 s
Porsche911 (991)Carrera 4 3.4	4.9 s

Fuel consumption comparison

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

Chart data table
Vehicle	Value
Porsche718 Cayman (982)GTS 2.5	9.2 L/100 km 25.6 mpg US 30.7 mpg UK
Porsche911 (991)Carrera 4 3.4	9.3 L/100 km 25.3 mpg US 30.4 mpg UK

Power-to-weight comparison

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

Chart data table
Vehicle	Value
Porsche718 Cayman (982)GTS 2.5	265 hp/t 198 kW/t 3.8 kg/hp
Porsche911 (991)Carrera 4 3.4	241 hp/t 180 kW/t 4.1 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
Porsche718 Cayman (982)GTS 2.5	696 km 432 mi
Porsche911 (991)Carrera 4 3.4	731 km 454 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Porsche718 Cayman (982)GTS 2.5	365 hp 272 kW	4.9 s	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph
Porsche911 (991)Carrera 4 3.4	350 hp 261 kW	4.9 s	285 km/h 177 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

Porsche718 Cayman (982)GTS 2.5

Power	365 hp 272 kW
0-100 km/h	4.9 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 4 3.4

Power	350 hp 261 kW
0-100 km/h	4.9 s
Top speed 285 km/h 177 mph

Doors/seats	2 doors 4 seats
Trunk	385 L 13.6 cu ft
Length	4,491 mm 176.8 in
Height	1,304 mm 51.3 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

Porsche718 Cayman (982)GTS 2.5

Power	365 hp 272 kW
0-100 km/h	4.9 s
Top speed Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph

9.2 L/100 km

25.6 mpg US

30.7 mpg UK

Porsche911 (991)Carrera 4 3.4

Power	350 hp 261 kW
0-100 km/h	4.9 s
Top speed 285 km/h 177 mph

9.3 L/100 km

25.3 mpg US

30.4 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
Porsche718 Cayman (982)GTS 2.5	9.2 L/100 km 25.6 mpg US 30.7 mpg UK	4.9 s
Porsche911 (991)Carrera 4 3.4	9.3 L/100 km 25.3 mpg US 30.4 mpg UK	4.9 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
Porsche718 Cayman (982)GTS 2.5	265 hp/t 198 kW/t 3.8 kg/hp	9.2 L/100 km 25.6 mpg US 30.7 mpg UK
Porsche911 (991)Carrera 4 3.4	241 hp/t 180 kW/t 4.1 kg/hp	9.3 L/100 km 25.3 mpg US 30.4 mpg UK

Detailed score breakdown

Vehicle

Porsche718 Cayman (982)GTS 2.5

Porsche911 (991)Carrera 4 3.4

Power

365 hp

272 kW

350 hp

261 kW

Torque

420 Nm

310 lb-ft

390 Nm

288 lb-ft

Acceleration

4.9 s

Top speed

Unrestricted

300 km/h186 mph

Restricted

290 km/h180 mph

285 km/h

177 mph

Lightness

1,375 kg

3,031 lb

1,450 kg

3,197 lb

Fuel consumption

9.2 L/100 km

25.6 mpg US

30.7 mpg UK

9.3 L/100 km

25.3 mpg US

30.4 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	385 L 13.6 cu ft
Length	4,491 mm 176.8 in
Height	1,304 mm 51.3 in

Range score

696 km

432 mi

731 km

454 mi

CO2 score

210 g/km

218 g/km

Trunk score

150 L

5.3 cu ft

385 L

13.6 cu ft

Power-to-weight score

265 hp/t

198 kW/t

3.8 kg/hp

241 hp/t

180 kW/t

4.1 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Porsche 718 Cayman (982) GTS 2.5	Porsche 911 (991) Carrera 4 3.4
Consumption	9.2 L/100 km25.6 mpg US30.7 mpg UK	9.3 L/100 km25.3 mpg US30.4 mpg UK
Cost / 100 km	16.10 LC100 km	16.28 LC100 km
Cost / 100 mi	25.91 LC100 mi	26.19 LC100 mi
Annual fuel used	1,380 L365 US gal304 UK gal	1,395 L369 US gal307 UK gal
Annual fuel cost	2,415 LC/year	2,441 LC/year