Car comparison

Porsche 911 (991 II) Carrera 3.0vsPorsche Cayman (987C) · Facelift 2009 S 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 Cayman (987C) · Facelift 2009

S 3.4

320 hp3436 ccGasolineRWDAutomaticNaturally aspiratedCoupe2009-2012

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
  • 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
  • Best practicality score
    41/100

Specification comparison

Specification comparison
ModelPorsche911 (991 II)Carrera 3.0PorscheCayman (987C)Facelift 2009S 3.4
Power
370hp276kW
320hp239kW
Torque
450Nm332lb-ft
370Nm273lb-ft
Curb weight
1,430kg3,153lb
1,375kg3,031lb
Gross weight
1,875kg4,134lb
1,675kg3,693lb
Top speed
295 km/h
183 mph
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Calculated
To 99% top speed
63.9s99% target: 292 km/h / 181 mph
Calculated
113.8s99% target: 282 km/h / 175 mph
Calculated
0-100 km/h
4.6s
5.1s
0-200 km/h
13.8s
Calculated
19.7s
0-60 mph
4.4s
Calculated
4.8s
Calculated
Fuel consumption
8.3L/100 km28.3mpg US34.0mpg UK
9.4L/100 km25mpg US30.1mpg UK
Fuel consumption city
11.7L/100 km20.1mpg US24.1mpg UK
14.1L/100 km16.7mpg US20.0mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
Quarter mile
12.5s
Calculated
13.3s
Calculated
Power-to-weight
259hp/t193kW/t117hp/1000 lb
Calculated
233hp/t174kW/t106hp/1000 lb
Calculated
Torque-to-weight
315Nm/t211lb-ft/ton
Calculated
269Nm/t180lb-ft/ton
Calculated
Estimated range
771km479mi
Calculated
691km430mi
Calculated
Displacement
2,981cc182cu in
3,436cc210cu in
Length
4,499mm177in
4,347mm171in
Width
1,808mm71in
1,801mm71in
Height
1,294mm51in
1,306mm51in
Wheelbase
2,450mm96in
2,415mm95in
Front track-
1,486mm59in
Rear track-
1,528mm60in
Ground clearance-
126mm5in
Trunk volume
145L
260L
Doors
2
2
Seats
4
2
Fuel tank
64L
65L
CO2 emissions
190g/km
221g/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 Cayman (987C) Facelift 2009 S 3.4PowerTorque
  • Porsche 911 (991 II) Carrera 3.0: Power / Torque
  • Porsche Cayman (987C) Facelift 2009 S 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
PorscheCayman (987C)Facelift 2009S 3.47,200 rpm4,750 rpm7,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (991 II)Carrera 3.0PorscheCayman (987C)Facelift 2009S 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
5.1 s
0-200 km/h
0-124 mph
13.8 s
19.7 s
Top speed
295 km/h
183 mph
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.0 s
330 ft
101 m
5.6 s
5.6 s
1/8 mile
201 m
8.3 s
8.6 s
1000 ft
305 m
10.6 s
11.2 s
1/4 mile
402 m
12.5 s
13.3 s
Trap speed
1/4 mile
402 m
190 km/h
118 mph
169 km/h
105 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
PorscheCayman (987C)Facelift 2009S 3.4
320 hp
239 kW

Porsche 911 (991 II) Carrera 3.0 has 50 hp more than Porsche Cayman (987C) Facelift 2009 S 3.4.

The biggest power difference is between Porsche Cayman (987C) Facelift 2009 S 3.4 and Porsche 911 (991 II) Carrera 3.0: 50 hp (37 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
PorscheCayman (987C)Facelift 2009S 3.4
370 Nm
273 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
PorscheCayman (987C)Facelift 2009S 3.4
1,375 kg
3,031 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
PorscheCayman (987C)Facelift 2009S 3.4
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 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
PorscheCayman (987C)Facelift 2009S 3.45.1 s

The biggest 0-100 km/h difference is between Porsche 911 (991 II) Carrera 3.0 and Porsche Cayman (987C) Facelift 2009 S 3.4: 0.5 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
PorscheCayman (987C)Facelift 2009S 3.4
9.4 L/100 km
25.0 mpg US
30.1 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991 II) Carrera 3.0 and Porsche Cayman (987C) Facelift 2009 S 3.4: 1.1 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
PorscheCayman (987C)Facelift 2009S 3.4
233 hp/t
174 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 (991 II)Carrera 3.0
771 km
479 mi
PorscheCayman (987C)Facelift 2009S 3.4
691 km
430 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
PorscheCayman (987C)Facelift 2009S 3.4
320 hp
239 kW
5.1 s
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 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
PorscheCayman (987C)Facelift 2009S 3.4
Power
320 hp
239 kW
0-100 km/h5.1 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Doors/seats
2 doors
2 seats
Trunk
260 L
9.2 cu ft
Length
4,347 mm
171.1 in
Height
1,306 mm
51.4 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
PorscheCayman (987C)Facelift 2009S 3.4
Power
320 hp
239 kW
0-100 km/h5.1 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
9.4 L/100 km
25.0 mpg US
30.1 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
PorscheCayman (987C)Facelift 2009S 3.4
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
5.1 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
PorscheCayman (987C)Facelift 2009S 3.4
233 hp/t
174 kW/t
4.3 kg/hp
9.4 L/100 km
25.0 mpg US
30.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991 II)Carrera 3.0PorscheCayman (987C)Facelift 2009S 3.4
Power
370 hp
276 kW
320 hp
239 kW
Torque
450 Nm
332 lb-ft
370 Nm
273 lb-ft
Acceleration
4.6 s
5.1 s
Top speed
295 km/h
183 mph
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Lightness
1,430 kg
3,153 lb
1,375 kg
3,031 lb
Fuel consumption
8.3 L/100 km
28.3 mpg US
34.0 mpg UK
9.4 L/100 km
25.0 mpg US
30.1 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
2 seats
Trunk
260 L
9.2 cu ft
Length
4,347 mm
171.1 in
Height
1,306 mm
51.4 in
Range score
771 km
479 mi
691 km
430 mi
CO2 score
190 g/km
221 g/km
Trunk score
145 L
5.1 cu ft
260 L
9.2 cu ft
Power-to-weight score
259 hp/t
193 kW/t
3.9 kg/hp
233 hp/t
174 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 (991 II) Carrera 3.0Porsche Cayman (987C) Facelift 2009 S 3.4
Consumption8.3 L/100 km28.3 mpg US34 mpg UK9.4 L/100 km25 mpg US30.1 mpg UK
Cost / 100 km14.53 LC100 km16.45 LC100 km
Cost / 100 mi23.38 LC100 mi26.47 LC100 mi
Annual fuel used1,245 L329 US gal274 UK gal1,410 L372 US gal310 UK gal
Annual fuel cost2,179 LC/year2,468 LC/year

Head-to-head comparisons

Porsche 911 (991 II) Carrera 3.0

  • Has 50 hp more
  • Has 80 Nm more
  • Is 0.5 s quicker from 0-100 km/h
  • Has 10 km/h (6 mph) higher top speed
  • Uses 1.1 L/100 km less fuel
  • Has 26 hp/t better power-to-weight
  • Has 80 km (49 mi) more estimated range
  • Emits 31 g/km less CO2

Pros

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

Cons

  • Heaviest
  • Smallest trunk

Porsche Cayman (987C) Facelift 2009 S 3.4

  • Is 55 kg lighter
  • Has 115 L more trunk volume

Pros

  • Lightest
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (991 II) Carrera 3.0
Porsche Cayman (987C) S 3.4
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