Car comparison

Porsche 911 (991) Carrera S 3.8vsPorsche 911 Cabriolet (991) Carrera S 3.8

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

New comparison

Porsche 911 (991)

Carrera S 3.8

400 hp3800 ccGasolineRWDManualNaturally aspiratedCoupe2011-2015
VS

Porsche 911 Cabriolet (991)

Carrera S 3.8

400 hp3800 ccGasolineRWDDual-clutchNaturally aspiratedCabriolet / convertible2011-2015

Comparison overview

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

Best choices

Porsche 911 (991) Carrera S 3.8

  • Fastest top speed
    304 km/h
    189 mph
  • Most powerful
    400 hp
    298 kW
  • Highest torque
    440 Nm
    325 lb-ft
  • Lightest
    1,415 kg
    3,120 lb
  • Best power-to-weight
    283 hp/t
    211 kW/t
    3.5 kg/hp
  • Largest trunk
    340 L
  • Best overall score
    69/100
  • Best performance score
    79/100
  • Best practicality score
    48/100

Porsche 911 Cabriolet (991) Carrera S 3.8

  • Quickest 0-100 km/h
    4.3 s
  • Lowest combined fuel consumption
    8.9 L/100 km
    26.4 mpg US
    31.7 mpg UK
  • Lowest city consumption
    12.2 L/100 km
    19.3 mpg US
    23.2 mpg UK
  • Lowest highway consumption
    6.9 L/100 km
    34.1 mpg US
    40.9 mpg UK
  • Lowest CO2 emissions
    207 g/km
  • Best estimated range
    719 km
    447 mi
  • Best economy score
    83/100

Specification comparison

Specification comparison
ModelPorsche911 (991)Carrera S 3.8Porsche911 Cabriolet (991)Carrera S 3.8
Power
400hp298kW
400hp298kW
Torque
440Nm325lb-ft
440Nm325lb-ft
Curb weight
1,415kg3,120lb
1,505kg3,318lb
Gross weight
1,830kg4,034lb
1,905kg4,200lb
Top speed
304 km/h
189 mph
299 km/h
186 mph
To 99% top speed
62.9s99% target: 301 km/h / 187 mph
Calculated
60.4s99% target: 296 km/h / 184 mph
Calculated
0-100 km/h
4.5s
4.3s
0-200 km/h
13.1s
Calculated
12.8s
Calculated
0-60 mph
4.3s
Calculated
4.1s
Calculated
Fuel consumption
9.5L/100 km24.8mpg US29.7mpg UK
8.9L/100 km26.4mpg US31.7mpg UK
Fuel consumption city
13.3L/100 km17.7mpg US21.2mpg UK
12.2L/100 km19.3mpg US23.2mpg UK
Fuel consumption highway
7.3L/100 km32.2mpg US38.7mpg UK
6.9L/100 km34.1mpg US40.9mpg UK
Quarter mile
12.4s
Calculated
12.2s
Calculated
Power-to-weight
283hp/t211kW/t128hp/1000 lb
Calculated
266hp/t198kW/t121hp/1000 lb
Calculated
Torque-to-weight
311Nm/t208lb-ft/ton
Calculated
292Nm/t196lb-ft/ton
Calculated
Estimated range
674km419mi
Calculated
719km447mi
Calculated
Displacement
3,800cc232cu in
3,800cc232cu in
Length
4,491mm177in
4,491mm177in
Width
1,808mm71in
1,808mm71in
Height
1,295mm51in
1,292mm51in
Wheelbase
2,450mm96in
2,450mm96in
Front track
1,538mm61in
1,538mm61in
Rear track
1,516mm60in
1,516mm60in
Trunk volume
340L
290L
Doors
2
2
Seats
4
4
Fuel tank
64L
64L
CO2 emissions
223g/km
207g/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 S 3.8Porsche 911 Cabriolet (991) Carrera S 3.8PowerTorque
  • Porsche 911 (991) Carrera S 3.8: Power / Torque
  • Porsche 911 Cabriolet (991) Carrera S 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (991)Carrera S 3.87,400 rpm5,600 rpm7,650 rpm
Porsche911 Cabriolet (991)Carrera S 3.87,400 rpm5,600 rpm7,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (991)Carrera S 3.8Porsche911 Cabriolet (991)Carrera S 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
4.1 s
0-100 km/h
0-62 mph
4.5 s
4.3 s
0-200 km/h
0-124 mph
13.1 s
12.8 s
Top speed
304 km/h
189 mph
299 km/h
186 mph
Drag race simulation
60 ft
18 m
2.2 s
2.1 s
330 ft
101 m
5.6 s
5.4 s
1/8 mile
201 m
8.2 s
8.1 s
1000 ft
305 m
10.5 s
10.3 s
1/4 mile
402 m
12.4 s
12.2 s
Trap speed
1/4 mile
402 m
194 km/h
121 mph
195 km/h
121 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 (991)Carrera S 3.8
400 hp
298 kW
Porsche911 Cabriolet (991)Carrera S 3.8
400 hp
298 kW

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (991)Carrera S 3.8
440 Nm
325 lb-ft
Porsche911 Cabriolet (991)Carrera S 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
Porsche911 (991)Carrera S 3.8
1,415 kg
3,120 lb
Porsche911 Cabriolet (991)Carrera S 3.8
1,505 kg
3,318 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 S 3.8
304 km/h
189 mph
Porsche911 Cabriolet (991)Carrera S 3.8
299 km/h
186 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 S 3.84.5 s
Porsche911 Cabriolet (991)Carrera S 3.84.3 s

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (991) Carrera S 3.8 and Porsche 911 (991) Carrera S 3.8: 0.2 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 S 3.8
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Porsche911 Cabriolet (991)Carrera S 3.8
8.9 L/100 km
26.4 mpg US
31.7 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (991) Carrera S 3.8 and Porsche 911 (991) Carrera S 3.8: 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
Porsche911 (991)Carrera S 3.8
283 hp/t
211 kW/t
3.5 kg/hp
Porsche911 Cabriolet (991)Carrera S 3.8
266 hp/t
198 kW/t
3.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 (991)Carrera S 3.8
674 km
419 mi
Porsche911 Cabriolet (991)Carrera S 3.8
719 km
447 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (991)Carrera S 3.8
400 hp
298 kW
4.5 s
304 km/h
189 mph
Porsche911 Cabriolet (991)Carrera S 3.8
400 hp
298 kW
4.3 s
299 km/h
186 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 S 3.8
Power
400 hp
298 kW
0-100 km/h4.5 s
Top speed
304 km/h
189 mph
Doors/seats
2 doors
4 seats
Trunk
340 L
12.0 cu ft
Length
4,491 mm
176.8 in
Height
1,295 mm
51.0 in
Porsche911 Cabriolet (991)Carrera S 3.8
Power
400 hp
298 kW
0-100 km/h4.3 s
Top speed
299 km/h
186 mph
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,491 mm
176.8 in
Height
1,292 mm
50.9 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 S 3.8
Power
400 hp
298 kW
0-100 km/h4.5 s
Top speed
304 km/h
189 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Porsche911 Cabriolet (991)Carrera S 3.8
Power
400 hp
298 kW
0-100 km/h4.3 s
Top speed
299 km/h
186 mph
8.9 L/100 km
26.4 mpg US
31.7 mpg UK

Porsche 911 Cabriolet (991) Carrera S 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
Porsche911 (991)Carrera S 3.8
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
4.5 s
Porsche911 Cabriolet (991)Carrera S 3.8
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
4.3 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 S 3.8
283 hp/t
211 kW/t
3.5 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Porsche911 Cabriolet (991)Carrera S 3.8
266 hp/t
198 kW/t
3.8 kg/hp
8.9 L/100 km
26.4 mpg US
31.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991)Carrera S 3.8Porsche911 Cabriolet (991)Carrera S 3.8
Power
400 hp
298 kW
400 hp
298 kW
Torque
440 Nm
325 lb-ft
440 Nm
325 lb-ft
Acceleration
4.5 s
4.3 s
Top speed
304 km/h
189 mph
299 km/h
186 mph
Lightness
1,415 kg
3,120 lb
1,505 kg
3,318 lb
Fuel consumption
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
340 L
12.0 cu ft
Length
4,491 mm
176.8 in
Height
1,295 mm
51.0 in
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,491 mm
176.8 in
Height
1,292 mm
50.9 in
Range score
674 km
419 mi
719 km
447 mi
CO2 score
223 g/km
207 g/km
Trunk score
340 L
12.0 cu ft
290 L
10.2 cu ft
Power-to-weight score
283 hp/t
211 kW/t
3.5 kg/hp
266 hp/t
198 kW/t
3.8 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 S 3.8Porsche 911 Cabriolet (991) Carrera S 3.8
Consumption9.5 L/100 km24.8 mpg US29.7 mpg UK8.9 L/100 km26.4 mpg US31.7 mpg UK
Cost / 100 km16.63 LC100 km15.58 LC100 km
Cost / 100 mi26.76 LC100 mi25.07 LC100 mi
Annual fuel used1,425 L376 US gal313 UK gal1,335 L353 US gal294 UK gal
Annual fuel cost2,494 LC/year2,336 LC/year

Head-to-head comparisons

Porsche 911 (991) Carrera S 3.8

  • Is 90 kg lighter
  • Has 5 km/h (3 mph) higher top speed
  • Has 17 hp/t better power-to-weight
  • Has 50 L more trunk volume

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Highest CO2 emissions

Porsche 911 Cabriolet (991) Carrera S 3.8

  • Is 0.2 s quicker from 0-100 km/h
  • Uses 0.6 L/100 km less fuel
  • Has 45 km (28 mi) more estimated range
  • Emits 16 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (991) Carrera S 3.8
Porsche 911 Cabriolet (991) Carrera S 3.8
Compare selected cars
2 vehicles selected

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