Car comparison

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

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

New comparison

Porsche 911 (991)

Carrera 3.4

350 hp3436 ccGasolineRWDManualNaturally aspiratedCoupe2011-2015
VS

Porsche 718 Cayman (982)

S 2.5

350 hp2497 ccGasolineRWDManualTurbochargedCoupe2019-2020

Comparison overview

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

Best choices

Porsche 911 (991) Carrera 3.4

  • Quickest 0-100 km/h
    4.8 s
  • Fastest top speed
    289 km/h
    180 mph
  • Most powerful
    350 hp
    261 kW
  • Lowest combined fuel consumption
    9.0 L/100 km
    26.1 mpg US
    31.4 mpg UK
  • Lowest city consumption
    12.4 L/100 km
    19.0 mpg US
    22.8 mpg UK
  • Lowest highway consumption
    7.0 L/100 km
    33.6 mpg US
    40.4 mpg UK
  • Best estimated range
    711 km
    442 mi
  • Largest trunk
    340 L
  • Best overall score
    66/100
  • Best performance score
    74/100
  • Best economy score
    83/100
  • Best practicality score
    48/100

Porsche 718 Cayman (982) S 2.5

  • Highest torque
    420 Nm
    310 lb-ft
  • Lightest
    1,355 kg
    2,987 lb
  • Best power-to-weight
    258 hp/t
    193 kW/t
    3.9 kg/hp
  • Lowest CO2 emissions
    210 g/km

Specification comparison

Specification comparison
ModelPorsche911 (991)Carrera 3.4Porsche718 Cayman (982)S 2.5
Power
350hp261kW
350hp261kW
Torque
390Nm288lb-ft
420Nm310lb-ft
Curb weight
1,400kg3,086lb
1,355kg2,987lb
Gross weight
1,795kg3,957lb
1,665kg3,671lb
Top speed
289 km/h
180 mph
285 km/h
177 mph
To 99% top speed
65.7s99% target: 286 km/h / 178 mph
Calculated
66.1s99% target: 282 km/h / 175 mph
Calculated
0-100 km/h
4.8s
4.9s
0-200 km/h
14.7s
Calculated
15.2s
Calculated
0-60 mph
4.6s
Calculated
4.7s
Calculated
Fuel consumption
9L/100 km26.1mpg US31.4mpg UK
9.2L/100 km25.6mpg US30.7mpg UK
Fuel consumption city
12.4L/100 km19mpg US22.8mpg UK
12.7L/100 km18.5mpg US22.2mpg UK
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
7.1L/100 km33.1mpg US39.8mpg UK
Quarter mile
12.8s
Calculated
12.9s
Calculated
Power-to-weight
250hp/t186kW/t113hp/1000 lb
Calculated
258hp/t193kW/t117hp/1000 lb
Calculated
Torque-to-weight
279Nm/t186lb-ft/ton
Calculated
310Nm/t207lb-ft/ton
Calculated
Estimated range
711km442mi
Calculated
696km432mi
Calculated
Displacement
3,436cc210cu in
2,497cc152cu in
Length
4,491mm177in
4,379mm172in
Width
1,808mm71in
1,801mm71in
Height
1,303mm51in
1,295mm51in
Wheelbase
2,450mm96in
2,475mm97in
Front track
1,532mm60in
1,515mm60in
Rear track
1,518mm60in
1,539mm61in
Trunk volume
340L
-
Max trunk volume-
150L
Doors
2
2
Seats
4
2
Fuel tank
64L
64L
CO2 emissions
211g/km
210g/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) Carrera 3.4Porsche 718 Cayman (982) S 2.5PowerTorque
  • Porsche 911 (991) Carrera 3.4: Power / Torque
  • Porsche 718 Cayman (982) S 2.5: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (991)Carrera 3.47,400 rpm5,600 rpm7,650 rpm
Porsche718 Cayman (982)S 2.56,500 rpm2,100-4,500 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (991)Carrera 3.4Porsche718 Cayman (982)S 2.5
Acceleration checkpoints
0-60 mph
0-97 km/h
4.6 s
4.7 s
0-100 km/h
0-62 mph
4.8 s
4.9 s
0-200 km/h
0-124 mph
14.7 s
15.2 s
Top speed
289 km/h
180 mph
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
8.4 s
8.5 s
1000 ft
305 m
10.8 s
10.9 s
1/4 mile
402 m
12.8 s
12.9 s
Trap speed
1/4 mile
402 m
186 km/h
116 mph
184 km/h
115 mph

Power comparison

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

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

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (991)Carrera 3.4
390 Nm
288 lb-ft
Porsche718 Cayman (982)S 2.5
420 Nm
310 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 (991)Carrera 3.4
1,400 kg
3,086 lb
Porsche718 Cayman (982)S 2.5
1,355 kg
2,987 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)Carrera 3.4
289 km/h
180 mph
Porsche718 Cayman (982)S 2.5
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
VehicleValue
Porsche911 (991)Carrera 3.44.8 s
Porsche718 Cayman (982)S 2.54.9 s

The biggest 0-100 km/h difference is between Porsche 911 (991) Carrera 3.4 and Porsche 718 Cayman (982) S 2.5: 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
Porsche911 (991)Carrera 3.4
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Porsche718 Cayman (982)S 2.5
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
Porsche911 (991)Carrera 3.4
250 hp/t
186 kW/t
4.0 kg/hp
Porsche718 Cayman (982)S 2.5
258 hp/t
193 kW/t
3.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 (991)Carrera 3.4
711 km
442 mi
Porsche718 Cayman (982)S 2.5
696 km
432 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (991)Carrera 3.4
350 hp
261 kW
4.8 s
289 km/h
180 mph
Porsche718 Cayman (982)S 2.5
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.

Chart data table
VehiclePerformance scorePracticality score
Porsche911 (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.8 s
Top speed
289 km/h
180 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
Porsche718 Cayman (982)S 2.5
Power
350 hp
261 kW
0-100 km/h4.9 s
Top speed
285 km/h
177 mph
Doors/seats
2 doors
2 seats
Trunk
150 L
5.3 cu ft
Length
4,379 mm
172.4 in
Height
1,295 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
Porsche911 (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.8 s
Top speed
289 km/h
180 mph
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Porsche718 Cayman (982)S 2.5
Power
350 hp
261 kW
0-100 km/h4.9 s
Top speed
285 km/h
177 mph
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

Porsche 911 (991) Carrera 3.4 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)Carrera 3.4
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
4.8 s
Porsche718 Cayman (982)S 2.5
9.2 L/100 km
25.6 mpg US
30.7 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
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Porsche911 (991)Carrera 3.4
250 hp/t
186 kW/t
4.0 kg/hp
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Porsche718 Cayman (982)S 2.5
258 hp/t
193 kW/t
3.9 kg/hp
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991)Carrera 3.4Porsche718 Cayman (982)S 2.5
Power
350 hp
261 kW
350 hp
261 kW
Torque
390 Nm
288 lb-ft
420 Nm
310 lb-ft
Acceleration
4.8 s
4.9 s
Top speed
289 km/h
180 mph
285 km/h
177 mph
Lightness
1,400 kg
3,086 lb
1,355 kg
2,987 lb
Fuel consumption
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
Practicality
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
Doors/seats
2 doors
2 seats
Trunk
150 L
5.3 cu ft
Length
4,379 mm
172.4 in
Height
1,295 mm
51.0 in
Range score
711 km
442 mi
696 km
432 mi
CO2 score
211 g/km
210 g/km
Trunk score
340 L
12.0 cu ft
150 L
5.3 cu ft
Power-to-weight score
250 hp/t
186 kW/t
4.0 kg/hp
258 hp/t
193 kW/t
3.9 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) Carrera 3.4Porsche 718 Cayman (982) S 2.5
Consumption9 L/100 km26.1 mpg US31.4 mpg UK9.2 L/100 km25.6 mpg US30.7 mpg UK
Cost / 100 km15.75 LC100 km16.10 LC100 km
Cost / 100 mi25.35 LC100 mi25.91 LC100 mi
Annual fuel used1,350 L357 US gal297 UK gal1,380 L365 US gal304 UK gal
Annual fuel cost2,363 LC/year2,415 LC/year

Head-to-head comparisons

Porsche 911 (991) Carrera 3.4

  • Is 0.1 s quicker from 0-100 km/h
  • Has 4 km/h (2 mph) higher top speed
  • Uses 0.2 L/100 km less fuel
  • Has 15 km (10 mi) more estimated range
  • Has 190 L more trunk volume

Pros

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

Cons

  • Heaviest
  • Highest CO2 emissions

Porsche 718 Cayman (982) S 2.5

  • Has 30 Nm more
  • Is 45 kg lighter
  • Has 8 hp/t better power-to-weight
  • Emits 1 g/km less CO2

Pros

  • Highest torque
  • Lightest
  • Best power-to-weight ratio

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (991) Carrera 3.4
Porsche 718 Cayman (982) S 2.5
Compare selected cars
2 vehicles selected

Popular comparisons

Carrera 3.4
Carrera 3.0
VS
Porsche911 (991)Carrera 3.4vsPorsche911 (991 II)Carrera 3.0
S 2.5
S 2.5
VS
Porsche718 Cayman (982)S 2.5vsPorsche718 Boxster (982)S 2.5
Carrera 3.4
Carrera 4 3.0
VS
Porsche911 (991)Carrera 3.4vsPorsche911 (992)Carrera 4 3.0
S 2.5
4.0
VS
Porsche718 Cayman (982)S 2.5vsPorsche718 Spyder (982)4.0
Carrera 3.4
Carrera 3.4
VS
Porsche911 (991)Carrera 3.4vsPorsche911 Cabriolet (991)Carrera 3.4
Carrera 3.4
GT3 3.6
VS
Porsche911 (991)Carrera 3.4vsPorsche911 (997)GT3 3.6
Carrera 3.4
GT3 RS 3.8
VS
Porsche911 (991)Carrera 3.4vsPorsche911 (997)Facelift 2008GT3 RS 3.8
S 2.5
GTS 3.4
VS
Porsche718 Cayman (982)S 2.5vsPorscheCayman (981C)GTS 3.4
Carrera 3.4
GT3 3.6
VS
Porsche911 (991)Carrera 3.4vsPorsche911 (996)GT3 3.6
S 2.5
Carrera 4 3.4
VS
Porsche718 Cayman (982)S 2.5vsPorsche911 (991)Carrera 4 3.4
Carrera 3.4
4 3.4
VS
Porsche911 (991)Carrera 3.4vsPorsche911 Targa (991)4 3.4
S 2.5
Carrera T 3.0
VS
Porsche718 Cayman (982)S 2.5vsPorsche911 (992)Facelift 2024Carrera T 3.0
Porsche 911 (991) Carrera 3.4 vs Porsche 718 Cayman (982) S 2.5 - car comparison - FastVsFaster