Car comparison

Porsche Cayman (987C) · Facelift 2009 S 3.4vsAUDI S5 Cabriolet (8T) 3.0 TFSI V6

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

New comparison

Porsche Cayman (987C) · Facelift 2009

S 3.4

320 hp3436 ccGasolineRWDAutomaticNaturally aspiratedCoupe2009-2012
VS

AUDI S5 Cabriolet (8T)

3.0 TFSI V6

333 hp2995 ccGasolineAWDAutomaticSuperchargedCoupe2009-2011

Comparison overview

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

Best choices

Porsche Cayman (987C) Facelift 2009 S 3.4

  • Quickest 0-100 km/h
    5.1 s
  • Fastest top speed
    285 km/h
    177 mph Unrestricted
    275 km/h
    171 mph Restricted
  • Lightest
    1,375 kg
    3,031 lb
  • Best power-to-weight
    233 hp/t
    174 kW/t
    4.3 kg/hp
  • Lowest combined fuel consumption
    9.4 L/100 km
    25.0 mpg US
    30.1 mpg UK
  • Lowest highway consumption
    6.6 L/100 km
    35.6 mpg US
    42.8 mpg UK
  • Lowest CO2 emissions
    221 g/km
  • Best estimated range
    691 km
    430 mi
  • Best overall score
    60/100
  • Best performance score
    71/100
  • Best economy score
    82/100

AUDI S5 Cabriolet (8T) 3.0 TFSI V6

  • Most powerful
    333 hp
    248 kW
  • Highest torque
    440 Nm
    325 lb-ft
  • Lowest city consumption
    13.8 L/100 km
    17.0 mpg US
    20.5 mpg UK
  • Largest trunk
    320 L
  • Best practicality score
    48/100

Specification comparison

Specification comparison
ModelPorscheCayman (987C)Facelift 2009S 3.4AUDIS5 Cabriolet (8T)3.0 TFSI V6
Power
320hp239kW
333hp248kW
Torque
370Nm273lb-ft
440Nm325lb-ft
Curb weight
1,375kg3,031lb
1,875kg4,134lb
Gross weight
1,675kg3,693lb
2,375kg5,236lb
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
113.8s99% target: 282 km/h / 175 mph
Calculated
82.5s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.1s
5.6s
0-200 km/h
19.7s
21.0s
Calculated
0-60 mph
4.8s
Calculated
5.3s
Calculated
Fuel consumption
9.4L/100 km25mpg US30.1mpg UK
9.7L/100 km24.2mpg US29.1mpg UK
Fuel consumption city
14.1L/100 km16.7mpg US20.0mpg UK
13.8L/100 km17mpg US20.5mpg UK
Fuel consumption highway
6.6L/100 km35.6mpg US42.8mpg UK
7.3L/100 km32.2mpg US38.7mpg UK
Quarter mile
13.3s
Calculated
13.8s
Calculated
Power-to-weight
233hp/t174kW/t106hp/1000 lb
Calculated
178hp/t132kW/t81hp/1000 lb
Calculated
Torque-to-weight
269Nm/t180lb-ft/ton
Calculated
235Nm/t157lb-ft/ton
Calculated
Estimated range
691km430mi
Calculated
660km410mi
Calculated
Displacement
3,436cc210cu in
2,995cc183cu in
Length
4,347mm171in
4,635mm182in
Width
1,801mm71in
1,854mm73in
Height
1,306mm51in
1,380mm54in
Wheelbase
2,415mm95in
2,751mm108in
Front track
1,486mm59in
1,588mm63in
Rear track
1,528mm60in
1,575mm62in
Ground clearance
126mm5in
-
Trunk volume
260L
320L
Max trunk volume-
750L
Doors
2
2
Seats
2
4
Fuel tank
65L
64L
CO2 emissions
221g/km
224g/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 Cayman (987C) Facelift 2009 S 3.4AUDI S5 Cabriolet (8T) 3.0 TFSI V6PowerTorque
  • Porsche Cayman (987C) Facelift 2009 S 3.4: Power / Torque
  • AUDI S5 Cabriolet (8T) 3.0 TFSI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheCayman (987C)Facelift 2009S 3.47,200 rpm4,750 rpm7,500 rpm
AUDIS5 Cabriolet (8T)3.0 TFSI V65,500-7,000 rpm2,900-5,300 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayman (987C)Facelift 2009S 3.4AUDIS5 Cabriolet (8T)3.0 TFSI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
4.8 s
5.3 s
0-100 km/h
0-62 mph
5.1 s
5.6 s
0-200 km/h
0-124 mph
19.7 s
21.0 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.0 s
2.2 s
330 ft
101 m
5.6 s
5.9 s
1/8 mile
201 m
8.6 s
9.0 s
1000 ft
305 m
11.2 s
11.6 s
1/4 mile
402 m
13.3 s
13.8 s
Trap speed
1/4 mile
402 m
169 km/h
105 mph
167 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)Facelift 2009S 3.4
320 hp
239 kW
AUDIS5 Cabriolet (8T)3.0 TFSI V6
333 hp
248 kW

AUDI S5 Cabriolet (8T) 3.0 TFSI V6 has 13 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 AUDI S5 Cabriolet (8T) 3.0 TFSI V6: 13 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)Facelift 2009S 3.4
370 Nm
273 lb-ft
AUDIS5 Cabriolet (8T)3.0 TFSI V6
440 Nm
325 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)Facelift 2009S 3.4
1,375 kg
3,031 lb
AUDIS5 Cabriolet (8T)3.0 TFSI V6
1,875 kg
4,134 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
PorscheCayman (987C)Facelift 2009S 3.4
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
AUDIS5 Cabriolet (8T)3.0 TFSI V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)Facelift 2009S 3.45.1 s
AUDIS5 Cabriolet (8T)3.0 TFSI V65.6 s

Although AUDI S5 Cabriolet (8T) 3.0 TFSI V6 has more power, Porsche Cayman (987C) Facelift 2009 S 3.4 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche Cayman (987C) Facelift 2009 S 3.4 and AUDI S5 Cabriolet (8T) 3.0 TFSI V6: 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
PorscheCayman (987C)Facelift 2009S 3.4
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
AUDIS5 Cabriolet (8T)3.0 TFSI V6
9.7 L/100 km
24.2 mpg US
29.1 mpg UK

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
PorscheCayman (987C)Facelift 2009S 3.4
233 hp/t
174 kW/t
4.3 kg/hp
AUDIS5 Cabriolet (8T)3.0 TFSI V6
178 hp/t
132 kW/t
5.6 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)Facelift 2009S 3.4
691 km
430 mi
AUDIS5 Cabriolet (8T)3.0 TFSI V6
660 km
410 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheCayman (987C)Facelift 2009S 3.4
320 hp
239 kW
5.1 s
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
AUDIS5 Cabriolet (8T)3.0 TFSI V6
333 hp
248 kW
5.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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
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
AUDIS5 Cabriolet (8T)3.0 TFSI V6
Power
333 hp
248 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
320 L
11.3 cu ft
Length
4,635 mm
182.5 in
Height
1,380 mm
54.3 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
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
AUDIS5 Cabriolet (8T)3.0 TFSI V6
Power
333 hp
248 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.7 L/100 km
24.2 mpg US
29.1 mpg UK

Porsche Cayman (987C) Facelift 2009 S 3.4 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
PorscheCayman (987C)Facelift 2009S 3.4
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
5.1 s
AUDIS5 Cabriolet (8T)3.0 TFSI V6
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
5.6 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
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
AUDIS5 Cabriolet (8T)3.0 TFSI V6
178 hp/t
132 kW/t
5.6 kg/hp
9.7 L/100 km
24.2 mpg US
29.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayman (987C)Facelift 2009S 3.4AUDIS5 Cabriolet (8T)3.0 TFSI V6
Power
320 hp
239 kW
333 hp
248 kW
Torque
370 Nm
273 lb-ft
440 Nm
325 lb-ft
Acceleration
5.1 s
5.6 s
Top speed
Unrestricted
285 km/h177 mph
Restricted
275 km/h171 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,375 kg
3,031 lb
1,875 kg
4,134 lb
Fuel consumption
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
9.7 L/100 km
24.2 mpg US
29.1 mpg UK
Practicality
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
Doors/seats
2 doors
4 seats
Trunk
320 L
11.3 cu ft
Length
4,635 mm
182.5 in
Height
1,380 mm
54.3 in
Range score
691 km
430 mi
660 km
410 mi
CO2 score
221 g/km
224 g/km
Trunk score
260 L
9.2 cu ft
320 L
11.3 cu ft
Power-to-weight score
233 hp/t
174 kW/t
4.3 kg/hp
178 hp/t
132 kW/t
5.6 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 Cayman (987C) Facelift 2009 S 3.4AUDI S5 Cabriolet (8T) 3.0 TFSI V6
Consumption9.4 L/100 km25 mpg US30.1 mpg UK9.7 L/100 km24.2 mpg US29.1 mpg UK
Cost / 100 km16.45 LC100 km16.97 LC100 km
Cost / 100 mi26.47 LC100 mi27.32 LC100 mi
Annual fuel used1,410 L372 US gal310 UK gal1,455 L384 US gal320 UK gal
Annual fuel cost2,468 LC/year2,546 LC/year

Head-to-head comparisons

Porsche Cayman (987C) Facelift 2009 S 3.4

  • Is 500 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Has 25 km/h (16 mph) higher top speed
  • Uses 0.3 L/100 km less fuel
  • Has 55 hp/t better power-to-weight
  • Has 32 km (20 mi) more estimated range
  • Emits 3 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

Cons

  • Lowest power
  • Smallest trunk

AUDI S5 Cabriolet (8T) 3.0 TFSI V6

  • Has 13 hp more
  • Has 70 Nm more
  • Has 60 L more trunk volume

Pros

  • Most powerful
  • Highest torque
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Cayman (987C) S 3.4
AUDI S5 Cabriolet (8T) 3.0 TFSI V6
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2 vehicles selected

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