Car comparison

Porsche 911 Targa (991) 4S 3.8vsPorsche 911 Cabriolet (991) Carrera 3.4

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

New comparison

Porsche 911 Targa (991)

4S 3.8

400 hp3800 ccGasolineAWDDual-clutchNaturally aspirated2014-2015
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 Targa (991) 4S 3.8

  • Quickest 0-100 km/h
    4.4 s
  • Fastest top speed
    294 km/h
    183 mph
  • Most powerful
    400 hp
    298 kW
  • Highest torque
    440 Nm
    325 lb-ft
  • Best power-to-weight
    254 hp/t
    189 kW/t
    3.9 kg/hp
  • Best overall score
    69/100
  • Best performance score
    78/100
  • Best practicality score
    51/100

Porsche 911 Cabriolet (991) Carrera 3.4

  • Lightest
    1,490 kg
    3,285 lb
  • 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 economy score
    84/100

Specification comparison

Specification comparison
ModelPorsche911 Targa (991)4S 3.8Porsche911 Cabriolet (991)Carrera 3.4
Power
400hp298kW
350hp261kW
Torque
440Nm325lb-ft
390Nm288lb-ft
Curb weight
1,575kg3,472lb
1,490kg3,285lb
Gross weight
1,980kg4,365lb
1,870kg4,123lb
Top speed
294 km/h
183 mph
284 km/h
176 mph
To 99% top speed
59.4s99% target: 291 km/h / 181 mph
Calculated
63.2s99% target: 281 km/h / 175 mph
Calculated
0-100 km/h
4.4s
4.6s
0-200 km/h
13.1s
Calculated
14.5s
Calculated
0-60 mph
4.2s
Calculated
4.4s
Calculated
Fuel consumption
9.2L/100 km25.6mpg US30.7mpg UK
8.4L/100 km28mpg US33.6mpg UK
Fuel consumption city
12.5L/100 km18.8mpg US22.6mpg UK
11.5L/100 km20.5mpg US24.6mpg UK
Fuel consumption highway
7.1L/100 km33.1mpg US39.8mpg UK
6.7L/100 km35.1mpg US42.2mpg UK
Quarter mile
12.3s
Calculated
12.6s
Calculated
Power-to-weight
254hp/t189kW/t115hp/1000 lb
Calculated
235hp/t175kW/t107hp/1000 lb
Calculated
Torque-to-weight
279Nm/t187lb-ft/ton
Calculated
262Nm/t175lb-ft/ton
Calculated
Estimated range
739km459mi
Calculated
762km473mi
Calculated
Displacement
3,800cc232cu in
3,436cc210cu in
Length
4,491mm177in
4,491mm177in
Width
1,852mm73in
1,808mm71in
Height
1,289mm51in
1,299mm51in
Wheelbase
2,450mm96in
2,450mm96in
Front track
1,538mm61in
1,532mm60in
Rear track
1,552mm61in
1,518mm60in
Trunk volume
285L
290L
Doors
2
2
Seats
4
4
Fuel tank
68L
64L
CO2 emissions
214g/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 911 Targa (991) 4S 3.8Porsche 911 Cabriolet (991) Carrera 3.4PowerTorque
  • Porsche 911 Targa (991) 4S 3.8: Power / Torque
  • Porsche 911 Cabriolet (991) Carrera 3.4: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 Targa (991)4S 3.87,400 rpm5,600 rpm7,650 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
MetricPorsche911 Targa (991)4S 3.8Porsche911 Cabriolet (991)Carrera 3.4
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
4.4 s
0-100 km/h
0-62 mph
4.4 s
4.6 s
0-200 km/h
0-124 mph
13.1 s
14.5 s
Top speed
294 km/h
183 mph
284 km/h
176 mph
Drag race simulation
60 ft
18 m
2.1 s
2.2 s
330 ft
101 m
5.5 s
5.6 s
1/8 mile
201 m
8.1 s
8.3 s
1000 ft
305 m
10.4 s
10.6 s
1/4 mile
402 m
12.3 s
12.6 s
Trap speed
1/4 mile
402 m
194 km/h
120 mph
187 km/h
116 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 Targa (991)4S 3.8
400 hp
298 kW
Porsche911 Cabriolet (991)Carrera 3.4
350 hp
261 kW

Porsche 911 Targa (991) 4S 3.8 has 50 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 911 Targa (991) 4S 3.8: 50 hp (37 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 Targa (991)4S 3.8
440 Nm
325 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
Porsche911 Targa (991)4S 3.8
1,575 kg
3,472 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
Porsche911 Targa (991)4S 3.8
294 km/h
183 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
Porsche911 Targa (991)4S 3.84.4 s
Porsche911 Cabriolet (991)Carrera 3.44.6 s

The biggest 0-100 km/h difference is between Porsche 911 Targa (991) 4S 3.8 and Porsche 911 Cabriolet (991) Carrera 3.4: 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 Targa (991)4S 3.8
9.2 L/100 km
25.6 mpg US
30.7 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 911 Targa (991) 4S 3.8: 0.8 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 Targa (991)4S 3.8
254 hp/t
189 kW/t
3.9 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
Porsche911 Targa (991)4S 3.8
739 km
459 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
Porsche911 Targa (991)4S 3.8
400 hp
298 kW
4.4 s
294 km/h
183 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
Porsche911 Targa (991)4S 3.8
Power
400 hp
298 kW
0-100 km/h4.4 s
Top speed
294 km/h
183 mph
Doors/seats
2 doors
4 seats
Trunk
285 L
10.1 cu ft
Length
4,491 mm
176.8 in
Height
1,289 mm
50.7 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
Porsche911 Targa (991)4S 3.8
Power
400 hp
298 kW
0-100 km/h4.4 s
Top speed
294 km/h
183 mph
9.2 L/100 km
25.6 mpg US
30.7 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 911 Targa (991) 4S 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 Targa (991)4S 3.8
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
4.4 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
Porsche911 Targa (991)4S 3.8
254 hp/t
189 kW/t
3.9 kg/hp
9.2 L/100 km
25.6 mpg US
30.7 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
VehiclePorsche911 Targa (991)4S 3.8Porsche911 Cabriolet (991)Carrera 3.4
Power
400 hp
298 kW
350 hp
261 kW
Torque
440 Nm
325 lb-ft
390 Nm
288 lb-ft
Acceleration
4.4 s
4.6 s
Top speed
294 km/h
183 mph
284 km/h
176 mph
Lightness
1,575 kg
3,472 lb
1,490 kg
3,285 lb
Fuel consumption
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
285 L
10.1 cu ft
Length
4,491 mm
176.8 in
Height
1,289 mm
50.7 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
739 km
459 mi
762 km
473 mi
CO2 score
214 g/km
195 g/km
Trunk score
285 L
10.1 cu ft
290 L
10.2 cu ft
Power-to-weight score
254 hp/t
189 kW/t
3.9 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 911 Targa (991) 4S 3.8Porsche 911 Cabriolet (991) Carrera 3.4
Consumption9.2 L/100 km25.6 mpg US30.7 mpg UK8.4 L/100 km28 mpg US33.6 mpg UK
Cost / 100 km16.10 LC100 km14.70 LC100 km
Cost / 100 mi25.91 LC100 mi23.66 LC100 mi
Annual fuel used1,380 L365 US gal304 UK gal1,260 L333 US gal277 UK gal
Annual fuel cost2,415 LC/year2,205 LC/year

Head-to-head comparisons

Porsche 911 Targa (991) 4S 3.8

  • Has 50 hp more
  • Has 50 Nm more
  • Is 0.2 s quicker from 0-100 km/h
  • Has 10 km/h (6 mph) higher top speed
  • Has 19 hp/t better power-to-weight

Pros

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

Cons

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

Porsche 911 Cabriolet (991) Carrera 3.4

  • Is 85 kg lighter
  • Uses 0.8 L/100 km less fuel
  • Has 23 km (14 mi) more estimated range
  • Has 5 L more trunk volume
  • Emits 19 g/km less CO2

Pros

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

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 Targa (991) 4S 3.8
Porsche 911 Cabriolet (991) Carrera 3.4
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Porsche 911 Targa (991) 4S 3.8 vs Porsche 911 Cabriolet (991) Carrera 3.4 - car comparison - FastVsFaster