Car comparison

Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8vsMaserati GranCabrio I Sport 4.7 V8

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

New comparison

Porsche 911 Cabriolet (991)

Carrera 4 GTS 3.8

430 hp3800 ccGasolineAWDManualNaturally aspiratedCabriolet / convertible2014-2015
VS

Maserati GranCabrio I

Sport 4.7 V8

460 hp4691 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2012-2017

Comparison overview

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

Best choices

Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8

  • Quickest 0-100 km/h
    4.6 s
  • Fastest top speed
    303 km/h
    188 mph
  • Lightest
    1,540 kg
    3,395 lb
  • Best power-to-weight
    279 hp/t
    208 kW/t
    3.6 kg/hp
  • Lowest combined fuel consumption
    10.0 L/100 km
    23.5 mpg US
    28.2 mpg UK
  • Lowest city consumption
    13.9 L/100 km
    16.9 mpg US
    20.3 mpg UK
  • Lowest highway consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Lowest CO2 emissions
    235 g/km
  • Best estimated range
    680 km
    423 mi
  • Largest trunk
    285 L
  • Best overall score
    68/100
  • Best performance score
    80/100
  • Best economy score
    80/100
  • Best practicality score
    44/100

Specification comparison

Specification comparison
ModelPorsche911 Cabriolet (991)Carrera 4 GTS 3.8MaseratiGranCabrio ISport 4.7 V8
Power
430hp321kW
460hp343kW
Torque
440Nm325lb-ft
520Nm384lb-ft
Curb weight
1,540kg3,395lb
1,980kg4,365lb
Gross weight
1,935kg4,266lb
2,350kg5,181lb
Top speed
303 km/h
188 mph
285 km/h
177 mph
To 99% top speed
65.2s99% target: 300 km/h / 186 mph
Calculated
77.4s99% target: 282 km/h / 175 mph
Calculated
0-100 km/h
4.6s
5.0s
0-200 km/h
13.5s
Calculated
16.5s
Calculated
0-60 mph
4.4s
Calculated
4.8s
Calculated
Fuel consumption
10L/100 km23.5mpg US28.2mpg UK
14.5L/100 km16.2mpg US19.5mpg UK
Fuel consumption city
13.9L/100 km16.9mpg US20.3mpg UK
22.5L/100 km10.5mpg US12.6mpg UK
Fuel consumption highway
7.7L/100 km30.5mpg US36.7mpg UK
9.8L/100 km24mpg US28.8mpg UK
Quarter mile
12.5s
Calculated
13.1s
Calculated
Power-to-weight
279hp/t208kW/t127hp/1000 lb
Calculated
232hp/t173kW/t105hp/1000 lb
Calculated
Torque-to-weight
286Nm/t191lb-ft/ton
Calculated
263Nm/t176lb-ft/ton
Calculated
Estimated range
680km423mi
Calculated
517km321mi
Calculated
Displacement
3,800cc232cu in
4,691cc286cu in
Length
4,509mm178in
4,881mm192in
Width
1,852mm73in
1,915mm75in
Height
1,294mm51in
1,353mm53in
Wheelbase
2,450mm96in
2,942mm116in
Front track
1,538mm61in
1,586mm62in
Rear track
1,560mm61in
1,590mm63in
Trunk volume
285L
173L
Doors
2
2
Seats
4
4
Fuel tank
68L
75L
CO2 emissions
235g/km
337g/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 Cabriolet (991) Carrera 4 GTS 3.8Maserati GranCabrio I Sport 4.7 V8PowerTorque
  • Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8: Power / Torque
  • Maserati GranCabrio I Sport 4.7 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 Cabriolet (991)Carrera 4 GTS 3.87,500 rpm5,750 rpm7,750 rpm
MaseratiGranCabrio ISport 4.7 V87,000 rpm4,750 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 Cabriolet (991)Carrera 4 GTS 3.8MaseratiGranCabrio ISport 4.7 V8
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
13.5 s
16.5 s
Top speed
303 km/h
188 mph
285 km/h
177 mph
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.6 s
5.7 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
13.1 s
Trap speed
1/4 mile
402 m
192 km/h
119 mph
179 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 4 GTS 3.8
430 hp
321 kW
MaseratiGranCabrio ISport 4.7 V8
460 hp
343 kW

Maserati GranCabrio I Sport 4.7 V8 has 30 hp more than Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8.

The biggest power difference is between Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8 and Maserati GranCabrio I Sport 4.7 V8: 30 hp (22 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 4 GTS 3.8
440 Nm
325 lb-ft
MaseratiGranCabrio ISport 4.7 V8
520 Nm
384 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 4 GTS 3.8
1,540 kg
3,395 lb
MaseratiGranCabrio ISport 4.7 V8
1,980 kg
4,365 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 Cabriolet (991)Carrera 4 GTS 3.8
303 km/h
188 mph
MaseratiGranCabrio ISport 4.7 V8
285 km/h
177 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 4 GTS 3.84.6 s
MaseratiGranCabrio ISport 4.7 V85.0 s

Although Maserati GranCabrio I Sport 4.7 V8 has more power, Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8 and Maserati GranCabrio I Sport 4.7 V8: 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 Cabriolet (991)Carrera 4 GTS 3.8
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
MaseratiGranCabrio ISport 4.7 V8
14.5 L/100 km
16.2 mpg US
19.5 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8 and Maserati GranCabrio I Sport 4.7 V8: 4.5 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 Cabriolet (991)Carrera 4 GTS 3.8
279 hp/t
208 kW/t
3.6 kg/hp
MaseratiGranCabrio ISport 4.7 V8
232 hp/t
173 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 Cabriolet (991)Carrera 4 GTS 3.8
680 km
423 mi
MaseratiGranCabrio ISport 4.7 V8
517 km
321 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 Cabriolet (991)Carrera 4 GTS 3.8
430 hp
321 kW
4.6 s
303 km/h
188 mph
MaseratiGranCabrio ISport 4.7 V8
460 hp
343 kW
5.0 s
285 km/h
177 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 Cabriolet (991)Carrera 4 GTS 3.8
Power
430 hp
321 kW
0-100 km/h4.6 s
Top speed
303 km/h
188 mph
Doors/seats
2 doors
4 seats
Trunk
285 L
10.1 cu ft
Length
4,509 mm
177.5 in
Height
1,294 mm
50.9 in
MaseratiGranCabrio ISport 4.7 V8
Power
460 hp
343 kW
0-100 km/h5.0 s
Top speed
285 km/h
177 mph
Doors/seats
2 doors
4 seats
Trunk
173 L
6.1 cu ft
Length
4,881 mm
192.2 in
Height
1,353 mm
53.3 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 Cabriolet (991)Carrera 4 GTS 3.8
Power
430 hp
321 kW
0-100 km/h4.6 s
Top speed
303 km/h
188 mph
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
MaseratiGranCabrio ISport 4.7 V8
Power
460 hp
343 kW
0-100 km/h5.0 s
Top speed
285 km/h
177 mph
14.5 L/100 km
16.2 mpg US
19.5 mpg UK

Porsche 911 Cabriolet (991) Carrera 4 GTS 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 Cabriolet (991)Carrera 4 GTS 3.8
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
4.6 s
MaseratiGranCabrio ISport 4.7 V8
14.5 L/100 km
16.2 mpg US
19.5 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 Cabriolet (991)Carrera 4 GTS 3.8
279 hp/t
208 kW/t
3.6 kg/hp
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
MaseratiGranCabrio ISport 4.7 V8
232 hp/t
173 kW/t
4.3 kg/hp
14.5 L/100 km
16.2 mpg US
19.5 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 Cabriolet (991)Carrera 4 GTS 3.8MaseratiGranCabrio ISport 4.7 V8
Power
430 hp
321 kW
460 hp
343 kW
Torque
440 Nm
325 lb-ft
520 Nm
384 lb-ft
Acceleration
4.6 s
5.0 s
Top speed
303 km/h
188 mph
285 km/h
177 mph
Lightness
1,540 kg
3,395 lb
1,980 kg
4,365 lb
Fuel consumption
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
285 L
10.1 cu ft
Length
4,509 mm
177.5 in
Height
1,294 mm
50.9 in
Doors/seats
2 doors
4 seats
Trunk
173 L
6.1 cu ft
Length
4,881 mm
192.2 in
Height
1,353 mm
53.3 in
Range score
680 km
423 mi
517 km
321 mi
CO2 score
235 g/km
337 g/km
Trunk score
285 L
10.1 cu ft
173 L
6.1 cu ft
Power-to-weight score
279 hp/t
208 kW/t
3.6 kg/hp
232 hp/t
173 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 Cabriolet (991) Carrera 4 GTS 3.8Maserati GranCabrio I Sport 4.7 V8
Consumption10 L/100 km23.5 mpg US28.2 mpg UK14.5 L/100 km16.2 mpg US19.5 mpg UK
Cost / 100 km17.50 LC100 km25.38 LC100 km
Cost / 100 mi28.16 LC100 mi40.84 LC100 mi
Annual fuel used1,500 L396 US gal330 UK gal2,175 L575 US gal478 UK gal
Annual fuel cost2,625 LC/year3,806 LC/year

Head-to-head comparisons

Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8

  • Is 440 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Has 18 km/h (11 mph) higher top speed
  • Uses 4.5 L/100 km less fuel
  • Has 47 hp/t better power-to-weight
  • Has 163 km (101 mi) more estimated range
  • Has 112 L more trunk volume
  • Emits 102 g/km less CO2

Pros

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

Cons

  • Lowest power

Maserati GranCabrio I Sport 4.7 V8

  • Has 30 hp more
  • Has 80 Nm more

Pros

  • Most powerful
  • Highest torque

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 Cabriolet (991) Carrera 4 GTS 3.8
Maserati GranCabrio I Sport 4.7 V8
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2 vehicles selected

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