Car comparison

Porsche 911 (991 II) Carrera 3.0vsPorsche 911 Cabriolet (991) Carrera 3.4

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

New comparison

Porsche 911 (991 II)

Carrera 3.0

370 hp2981 ccGasolineRWDManualTwin-turboCoupe2015-2018
VS

Porsche 911 Cabriolet (991)

Carrera 3.4

350 hp3436 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2011-2015

Comparison overview

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

Best choices

Porsche 911 (991 II) Carrera 3.0

  • Quickest 0-100 km/h
    4.6 s
  • Fastest top speed
    295 km/h
    183 mph
  • Most powerful
    370 hp
    276 kW
  • Highest torque
    450 Nm
    332 lb-ft
  • Lightest
    1,430 kg
    3,153 lb
  • Best power-to-weight
    259 hp/t
    193 kW/t
    3.9 kg/hp
  • Lowest combined fuel consumption
    8.3 L/100 km
    28.3 mpg US
    34.0 mpg UK
  • Lowest city consumption
    11.7 L/100 km
    20.1 mpg US
    24.1 mpg UK
  • Lowest highway consumption
    6.3 L/100 km
    37.3 mpg US
    44.8 mpg UK
  • Lowest CO2 emissions
    190 g/km
  • Best estimated range
    771 km
    479 mi
  • Best overall score
    65/100
  • Best performance score
    77/100
  • Best economy score
    85/100

Specification comparison

Specification comparison
ModelPorsche911 (991 II)Carrera 3.0Porsche911 Cabriolet (991)Carrera 3.4
Power
370hp276kW
350hp261kW
Torque
450Nm332lb-ft
390Nm288lb-ft
Curb weight
1,430kg3,153lb
1,470kg3,241lb
Gross weight
1,875kg4,134lb
1,850kg4,079lb
Top speed
295 km/h
183 mph
286 km/h
178 mph
To 99% top speed
63.9s99% target: 292 km/h / 181 mph
Calculated
68.9s99% target: 283 km/h / 176 mph
Calculated
0-100 km/h
4.6s
5.0s
0-200 km/h
13.8s
Calculated
15.6s
Calculated
0-60 mph
4.4s
Calculated
4.8s
Calculated
Fuel consumption
8.3L/100 km28.3mpg US34.0mpg UK
9.2L/100 km25.6mpg US30.7mpg UK
Fuel consumption city
11.7L/100 km20.1mpg US24.1mpg UK
12.7L/100 km18.5mpg US22.2mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile
12.5s
Calculated
13.0s
Calculated
Power-to-weight
259hp/t193kW/t117hp/1000 lb
Calculated
238hp/t178kW/t108hp/1000 lb
Calculated
Torque-to-weight
315Nm/t211lb-ft/ton
Calculated
265Nm/t178lb-ft/ton
Calculated
Estimated range
771km479mi
Calculated
696km432mi
Calculated
Displacement
2,981cc182cu in
3,436cc210cu in
Length
4,499mm177in
4,491mm177in
Width
1,808mm71in
1,808mm71in
Height
1,294mm51in
1,299mm51in
Wheelbase
2,450mm96in
2,450mm96in
Front track-
1,532mm60in
Rear track-
1,518mm60in
Trunk volume
145L
290L
Doors
2
2
Seats
4
4
Fuel tank
64L
64L
CO2 emissions
190g/km
216g/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 II) Carrera 3.0Porsche 911 Cabriolet (991) Carrera 3.4PowerTorque
  • Porsche 911 (991 II) Carrera 3.0: Power / Torque
  • Porsche 911 Cabriolet (991) Carrera 3.4: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (991 II)Carrera 3.06,500 rpm1,700-5,000 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
MetricPorsche911 (991 II)Carrera 3.0Porsche911 Cabriolet (991)Carrera 3.4
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
4.8 s
0-100 km/h
0-62 mph
4.6 s
5.0 s
0-200 km/h
0-124 mph
13.8 s
15.6 s
Top speed
295 km/h
183 mph
286 km/h
178 mph
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.6 s
5.8 s
1/8 mile
201 m
8.3 s
8.6 s
1000 ft
305 m
10.6 s
11.0 s
1/4 mile
402 m
12.5 s
13.0 s
Trap speed
1/4 mile
402 m
190 km/h
118 mph
183 km/h
114 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 3.0
370 hp
276 kW
Porsche911 Cabriolet (991)Carrera 3.4
350 hp
261 kW

Porsche 911 (991 II) Carrera 3.0 has 20 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 (991 II) Carrera 3.0: 20 hp (15 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 3.0
450 Nm
332 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 (991 II)Carrera 3.0
1,430 kg
3,153 lb
Porsche911 Cabriolet (991)Carrera 3.4
1,470 kg
3,241 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 II)Carrera 3.0
295 km/h
183 mph
Porsche911 Cabriolet (991)Carrera 3.4
286 km/h
178 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 3.04.6 s
Porsche911 Cabriolet (991)Carrera 3.45.0 s

The biggest 0-100 km/h difference is between Porsche 911 (991 II) Carrera 3.0 and Porsche 911 Cabriolet (991) Carrera 3.4: 0.4 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 II)Carrera 3.0
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
Porsche911 Cabriolet (991)Carrera 3.4
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991 II) Carrera 3.0 and Porsche 911 Cabriolet (991) Carrera 3.4: 0.9 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 II)Carrera 3.0
259 hp/t
193 kW/t
3.9 kg/hp
Porsche911 Cabriolet (991)Carrera 3.4
238 hp/t
178 kW/t
4.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 3.0
771 km
479 mi
Porsche911 Cabriolet (991)Carrera 3.4
696 km
432 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (991 II)Carrera 3.0
370 hp
276 kW
4.6 s
295 km/h
183 mph
Porsche911 Cabriolet (991)Carrera 3.4
350 hp
261 kW
5.0 s
286 km/h
178 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 II)Carrera 3.0
Power
370 hp
276 kW
0-100 km/h4.6 s
Top speed
295 km/h
183 mph
Doors/seats
2 doors
4 seats
Trunk
145 L
5.1 cu ft
Length
4,499 mm
177.1 in
Height
1,294 mm
50.9 in
Porsche911 Cabriolet (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h5.0 s
Top speed
286 km/h
178 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 (991 II)Carrera 3.0
Power
370 hp
276 kW
0-100 km/h4.6 s
Top speed
295 km/h
183 mph
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
Porsche911 Cabriolet (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h5.0 s
Top speed
286 km/h
178 mph
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

Porsche 911 (991 II) Carrera 3.0 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 II)Carrera 3.0
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
4.6 s
Porsche911 Cabriolet (991)Carrera 3.4
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
5.0 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 II)Carrera 3.0
259 hp/t
193 kW/t
3.9 kg/hp
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
Porsche911 Cabriolet (991)Carrera 3.4
238 hp/t
178 kW/t
4.2 kg/hp
9.2 L/100 km
25.6 mpg US
30.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991 II)Carrera 3.0Porsche911 Cabriolet (991)Carrera 3.4
Power
370 hp
276 kW
350 hp
261 kW
Torque
450 Nm
332 lb-ft
390 Nm
288 lb-ft
Acceleration
4.6 s
5.0 s
Top speed
295 km/h
183 mph
286 km/h
178 mph
Lightness
1,430 kg
3,153 lb
1,470 kg
3,241 lb
Fuel consumption
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
145 L
5.1 cu ft
Length
4,499 mm
177.1 in
Height
1,294 mm
50.9 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
771 km
479 mi
696 km
432 mi
CO2 score
190 g/km
216 g/km
Trunk score
145 L
5.1 cu ft
290 L
10.2 cu ft
Power-to-weight score
259 hp/t
193 kW/t
3.9 kg/hp
238 hp/t
178 kW/t
4.2 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 II) Carrera 3.0Porsche 911 Cabriolet (991) Carrera 3.4
Consumption8.3 L/100 km28.3 mpg US34 mpg UK9.2 L/100 km25.6 mpg US30.7 mpg UK
Cost / 100 km14.53 LC100 km16.10 LC100 km
Cost / 100 mi23.38 LC100 mi25.91 LC100 mi
Annual fuel used1,245 L329 US gal274 UK gal1,380 L365 US gal304 UK gal
Annual fuel cost2,179 LC/year2,415 LC/year

Head-to-head comparisons

Porsche 911 (991 II) Carrera 3.0

  • Has 20 hp more
  • Has 60 Nm more
  • Is 40 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Has 9 km/h (6 mph) higher top speed
  • Uses 0.9 L/100 km less fuel
  • Has 21 hp/t better power-to-weight
  • Has 75 km (47 mi) more estimated range
  • Emits 26 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Smallest trunk

Porsche 911 Cabriolet (991) Carrera 3.4

  • Has 145 L more trunk volume

Pros

  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (991 II) Carrera 3.0
Porsche 911 Cabriolet (991) Carrera 3.4
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