Car comparison

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

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

New comparison

Porsche 718 Boxster (982)

GTS 2.5

365 hp2497 ccGasolineRWDManualTurbochargedCabriolet / convertible2017-2018
VS

Porsche 911 Cabriolet (991)

Carrera 3.4

350 hp3436 ccGasolineRWDDual-clutchNaturally aspiratedCabriolet / convertible2011-2015

Comparison overview

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

Best choices

Porsche 911 Cabriolet (991) Carrera 3.4

  • Lowest combined fuel consumption
    8.4 L/100 km
    28.0 mpg US
    33.6 mpg UK
  • Lowest city consumption
    11.5 L/100 km
    20.5 mpg US
    24.6 mpg UK
  • Lowest highway consumption
    6.7 L/100 km
    35.1 mpg US
    42.2 mpg UK
  • Lowest CO2 emissions
    195 g/km
  • Best estimated range
    762 km
    473 mi
  • Largest trunk
    290 L
  • Best overall score
    64/100
  • Best economy score
    84/100
  • Best practicality score
    44/100

Porsche 718 Boxster (982) GTS 2.5

  • Quickest 0-100 km/h
    4.6 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
  • Best performance score
    76/100

Specification comparison

Specification comparison
ModelPorsche718 Boxster (982)GTS 2.5Porsche911 Cabriolet (991)Carrera 3.4
Power
365hp272kW
350hp261kW
Torque
420Nm310lb-ft
390Nm288lb-ft
Curb weight
1,375kg3,031lb
1,490kg3,285lb
Gross weight
1,675kg3,693lb
1,870kg4,123lb
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Calculated
284 km/h
176 mph
To 99% top speed
66.1s99% target: 297 km/h / 185 mph
Calculated
63.2s99% target: 281 km/h / 175 mph
Calculated
0-100 km/h
4.6s
4.6s
0-200 km/h
13.7s
Calculated
14.5s
Calculated
0-60 mph
4.4s
Calculated
4.4s
Calculated
Fuel consumption
9L/100 km26.1mpg US31.4mpg UK
8.4L/100 km28mpg US33.6mpg UK
Fuel consumption city
12.3L/100 km19.1mpg US23.0mpg UK
11.5L/100 km20.5mpg US24.6mpg UK
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
6.7L/100 km35.1mpg US42.2mpg UK
Quarter mile
12.5s
Calculated
12.6s
Calculated
Power-to-weight
265hp/t198kW/t120hp/1000 lb
Calculated
235hp/t175kW/t107hp/1000 lb
Calculated
Torque-to-weight
305Nm/t204lb-ft/ton
Calculated
262Nm/t175lb-ft/ton
Calculated
Estimated range
711km442mi
Calculated
762km473mi
Calculated
Displacement
2,497cc152cu in
3,436cc210cu in
Length
4,379mm172in
4,491mm177in
Width
1,801mm71in
1,808mm71in
Height
1,272mm50in
1,299mm51in
Wheelbase
2,475mm97in
2,450mm96in
Front track-
1,532mm60in
Rear track-
1,518mm60in
Trunk volume
150L
290L
Max trunk volume
275L
-
Doors
2
2
Seats
2
4
Fuel tank
64L
64L
CO2 emissions
205g/km
195g/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 Boxster (982) GTS 2.5Porsche 911 Cabriolet (991) Carrera 3.4PowerTorque
  • Porsche 718 Boxster (982) GTS 2.5: Power / Torque
  • Porsche 911 Cabriolet (991) Carrera 3.4: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche718 Boxster (982)GTS 2.56,500 rpm1,900-5,500 rpm6,750 rpm
Porsche911 Cabriolet (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 Boxster (982)GTS 2.5Porsche911 Cabriolet (991)Carrera 3.4
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
4.4 s
0-100 km/h
0-62 mph
4.6 s
4.6 s
0-200 km/h
0-124 mph
13.7 s
14.5 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Likely limited
284 km/h
176 mph
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.6 s
5.6 s
1/8 mile
201 m
8.3 s
8.3 s
1000 ft
305 m
10.6 s
10.6 s
1/4 mile
402 m
12.5 s
12.6 s
Trap speed
1/4 mile
402 m
191 km/h
119 mph
187 km/h
116 mph

Power comparison

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

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

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

The biggest power difference is between Porsche 911 Cabriolet (991) Carrera 3.4 and Porsche 718 Boxster (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 Boxster (982)GTS 2.5
420 Nm
310 lb-ft
Porsche911 Cabriolet (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 Boxster (982)GTS 2.5
1,375 kg
3,031 lb
Porsche911 Cabriolet (991)Carrera 3.4
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 Boxster (982)GTS 2.5
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Porsche911 Cabriolet (991)Carrera 3.4
284 km/h
176 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche718 Boxster (982)GTS 2.54.6 s
Porsche911 Cabriolet (991)Carrera 3.44.6 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 Boxster (982)GTS 2.5
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Porsche911 Cabriolet (991)Carrera 3.4
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (991) Carrera 3.4 and Porsche 718 Boxster (982) GTS 2.5: 0.6 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 Boxster (982)GTS 2.5
265 hp/t
198 kW/t
3.8 kg/hp
Porsche911 Cabriolet (991)Carrera 3.4
235 hp/t
175 kW/t
4.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche718 Boxster (982)GTS 2.5
711 km
442 mi
Porsche911 Cabriolet (991)Carrera 3.4
762 km
473 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche718 Boxster (982)GTS 2.5
365 hp
272 kW
4.6 s
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Porsche911 Cabriolet (991)Carrera 3.4
350 hp
261 kW
4.6 s
284 km/h
176 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 Boxster (982)GTS 2.5
Power
365 hp
272 kW
0-100 km/h4.6 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
4,379 mm
172.4 in
Height
1,272 mm
50.1 in
Porsche911 Cabriolet (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.6 s
Top speed
284 km/h
176 mph
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,491 mm
176.8 in
Height
1,299 mm
51.1 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 Boxster (982)GTS 2.5
Power
365 hp
272 kW
0-100 km/h4.6 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Porsche911 Cabriolet (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.6 s
Top speed
284 km/h
176 mph
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

Porsche 718 Boxster (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 Boxster (982)GTS 2.5
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
4.6 s
Porsche911 Cabriolet (991)Carrera 3.4
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
4.6 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 Boxster (982)GTS 2.5
265 hp/t
198 kW/t
3.8 kg/hp
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Porsche911 Cabriolet (991)Carrera 3.4
235 hp/t
175 kW/t
4.3 kg/hp
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche718 Boxster (982)GTS 2.5Porsche911 Cabriolet (991)Carrera 3.4
Power
365 hp
272 kW
350 hp
261 kW
Torque
420 Nm
310 lb-ft
390 Nm
288 lb-ft
Acceleration
4.6 s
4.6 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
284 km/h
176 mph
Lightness
1,375 kg
3,031 lb
1,490 kg
3,285 lb
Fuel consumption
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
150 L
5.3 cu ft
Length
4,379 mm
172.4 in
Height
1,272 mm
50.1 in
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,491 mm
176.8 in
Height
1,299 mm
51.1 in
Range score
711 km
442 mi
762 km
473 mi
CO2 score
205 g/km
195 g/km
Trunk score
150 L
5.3 cu ft
290 L
10.2 cu ft
Power-to-weight score
265 hp/t
198 kW/t
3.8 kg/hp
235 hp/t
175 kW/t
4.3 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 Boxster (982) GTS 2.5Porsche 911 Cabriolet (991) Carrera 3.4
Consumption9 L/100 km26.1 mpg US31.4 mpg UK8.4 L/100 km28 mpg US33.6 mpg UK
Cost / 100 km15.75 LC100 km14.70 LC100 km
Cost / 100 mi25.35 LC100 mi23.66 LC100 mi
Annual fuel used1,350 L357 US gal297 UK gal1,260 L333 US gal277 UK gal
Annual fuel cost2,363 LC/year2,205 LC/year

Head-to-head comparisons

Porsche 718 Boxster (982) GTS 2.5

  • Has 15 hp more
  • Has 30 Nm more
  • Is 115 kg lighter
  • Has 16 km/h (10 mph) higher top speed
  • Has 31 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

Porsche 911 Cabriolet (991) Carrera 3.4

  • Uses 0.6 L/100 km less fuel
  • Has 51 km (32 mi) more estimated range
  • Has 140 L more trunk volume
  • Emits 10 g/km less CO2

Pros

  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 718 Boxster (982) GTS 2.5
Porsche 911 Cabriolet (991) Carrera 3.4
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