Car comparison

Porsche 718 Boxster (982) GTS 2.5vsPorsche 911 Cabriolet (991) Carrera 4 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 4 3.4

350 hp3436 ccGasolineAWDDual-clutchNaturally aspiratedCabriolet / convertible2012-2015

Comparison overview

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

Best choices

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
  • Best economy score
    83/100

Porsche 911 Cabriolet (991) Carrera 4 3.4

  • Lowest combined fuel consumption
    8.7 L/100 km
    27.0 mpg US
    32.5 mpg UK
  • Lowest city consumption
    11.8 L/100 km
    19.9 mpg US
    23.9 mpg UK
  • Lowest highway consumption
    6.9 L/100 km
    34.1 mpg US
    40.9 mpg UK
  • Lowest CO2 emissions
    202 g/km
  • Best estimated range
    782 km
    486 mi
  • Largest trunk
    285 L
  • Best overall score
    64/100
  • Best practicality score
    44/100

Specification comparison

Specification comparison
ModelPorsche718 Boxster (982)GTS 2.5Porsche911 Cabriolet (991)Carrera 4 3.4
Power
365hp272kW
350hp261kW
Torque
420Nm310lb-ft
390Nm288lb-ft
Curb weight
1,375kg3,031lb
1,540kg3,395lb
Gross weight
1,675kg3,693lb
1,920kg4,233lb
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Calculated
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
Calculated
To 99% top speed
66.1s99% target: 297 km/h / 185 mph
Calculated
69.2s99% target: 287 km/h / 178 mph
Calculated
0-100 km/h
4.6s
4.7s
0-200 km/h
13.7s
Calculated
14.8s
Calculated
0-60 mph
4.4s
Calculated
4.5s
Calculated
Fuel consumption
9L/100 km26.1mpg US31.4mpg UK
8.7L/100 km27mpg US32.5mpg UK
Fuel consumption city
12.3L/100 km19.1mpg US23.0mpg UK
11.8L/100 km19.9mpg US23.9mpg UK
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
6.9L/100 km34.1mpg US40.9mpg UK
Quarter mile
12.5s
Calculated
12.7s
Calculated
Power-to-weight
265hp/t198kW/t120hp/1000 lb
Calculated
227hp/t169kW/t103hp/1000 lb
Calculated
Torque-to-weight
305Nm/t204lb-ft/ton
Calculated
253Nm/t169lb-ft/ton
Calculated
Estimated range
711km442mi
Calculated
782km486mi
Calculated
Displacement
2,497cc152cu in
3,436cc210cu in
Length
4,379mm172in
4,491mm177in
Width
1,801mm71in
1,852mm73in
Height
1,272mm50in
1,300mm51in
Wheelbase
2,475mm97in
2,450mm96in
Front track-
1,532mm60in
Rear track-
1,560mm61in
Trunk volume
150L
285L
Max trunk volume
275L
-
Doors
2
2
Seats
2
4
Fuel tank
64L
68L
CO2 emissions
205g/km
202g/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 4 3.4PowerTorque
  • Porsche 718 Boxster (982) GTS 2.5: Power / Torque
  • Porsche 911 Cabriolet (991) Carrera 4 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 4 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 4 3.4
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
4.5 s
0-100 km/h
0-62 mph
4.6 s
4.7 s
0-200 km/h
0-124 mph
13.7 s
14.8 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Likely limited
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
Likely limited
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
8.4 s
1000 ft
305 m
10.6 s
10.7 s
1/4 mile
402 m
12.5 s
12.7 s
Trap speed
1/4 mile
402 m
191 km/h
119 mph
186 km/h
115 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 4 3.4
350 hp
261 kW

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

The biggest power difference is between Porsche 911 Cabriolet (991) Carrera 4 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 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
VehicleValue
Porsche718 Boxster (982)GTS 2.5
1,375 kg
3,031 lb
Porsche911 Cabriolet (991)Carrera 4 3.4
1,540 kg
3,395 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 4 3.4
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 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 4 3.44.7 s

The biggest 0-100 km/h difference is between Porsche 718 Boxster (982) GTS 2.5 and Porsche 911 Cabriolet (991) Carrera 4 3.4: 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 Boxster (982)GTS 2.5
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Porsche911 Cabriolet (991)Carrera 4 3.4
8.7 L/100 km
27.0 mpg US
32.5 mpg UK

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 4 3.4
227 hp/t
169 kW/t
4.4 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 4 3.4
782 km
486 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 4 3.4
350 hp
261 kW
4.7 s
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 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 4 3.4
Power
350 hp
261 kW
0-100 km/h4.7 s
Top speed
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
Doors/seats
2 doors
4 seats
Trunk
285 L
10.1 cu ft
Length
4,491 mm
176.8 in
Height
1,300 mm
51.2 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 4 3.4
Power
350 hp
261 kW
0-100 km/h4.7 s
Top speed
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
8.7 L/100 km
27.0 mpg US
32.5 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 4 3.4
8.7 L/100 km
27.0 mpg US
32.5 mpg UK
4.7 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 4 3.4
227 hp/t
169 kW/t
4.4 kg/hp
8.7 L/100 km
27.0 mpg US
32.5 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche718 Boxster (982)GTS 2.5Porsche911 Cabriolet (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
4.6 s
4.7 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Unrestricted
290 km/h180 mph
Restricted
280 km/h174 mph
Lightness
1,375 kg
3,031 lb
1,540 kg
3,395 lb
Fuel consumption
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
8.7 L/100 km
27.0 mpg US
32.5 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
285 L
10.1 cu ft
Length
4,491 mm
176.8 in
Height
1,300 mm
51.2 in
Range score
711 km
442 mi
782 km
486 mi
CO2 score
205 g/km
202 g/km
Trunk score
150 L
5.3 cu ft
285 L
10.1 cu ft
Power-to-weight score
265 hp/t
198 kW/t
3.8 kg/hp
227 hp/t
169 kW/t
4.4 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 Boxster (982) GTS 2.5Porsche 911 Cabriolet (991) Carrera 4 3.4
Consumption9 L/100 km26.1 mpg US31.4 mpg UK8.7 L/100 km27 mpg US32.5 mpg UK
Cost / 100 km15.75 LC100 km15.22 LC100 km
Cost / 100 mi25.35 LC100 mi24.50 LC100 mi
Annual fuel used1,350 L357 US gal297 UK gal1,305 L345 US gal287 UK gal
Annual fuel cost2,363 LC/year2,284 LC/year

Head-to-head comparisons

Porsche 718 Boxster (982) GTS 2.5

  • Has 15 hp more
  • Has 30 Nm more
  • Is 165 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 10 km/h (6 mph) higher top speed
  • Has 38 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 4 3.4

  • Uses 0.3 L/100 km less fuel
  • Has 70 km (44 mi) more estimated range
  • Has 135 L more trunk volume
  • Emits 3 g/km less CO2

Pros

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

Cons

  • Slowest 0-100 km/h
  • 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 4 3.4
Compare selected cars
2 vehicles selected

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