Car comparison

Porsche Cayman (987C) 2.7vsAlfa Romeo Brera 3.2 JTS V6

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

New comparison

Porsche Cayman (987C)

2.7

245 hp2687 ccGasolineRWDManualNaturally aspiratedCoupe2006-2009
VS

Alfa Romeo Brera

3.2 JTS V6

260 hp3195 ccGasolineAWDManualNaturally aspiratedCoupe2005-2010

Comparison overview

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

Best choices

Porsche Cayman (987C) 2.7

  • Quickest 0-100 km/h
    6.1 s
  • Fastest top speed
    258 km/h
    160 mph
  • Lightest
    1,300 kg
    2,866 lb
  • Best power-to-weight
    188 hp/t
    141 kW/t
    5.3 kg/hp
  • Lowest combined fuel consumption
    9.3 L/100 km
    25.3 mpg US
    30.4 mpg UK
  • Lowest city consumption
    13.8 L/100 km
    17.0 mpg US
    20.5 mpg UK
  • Lowest highway consumption
    6.8 L/100 km
    34.6 mpg US
    41.5 mpg UK
  • Lowest CO2 emissions
    222 g/km
  • Best estimated range
    688 km
    428 mi
  • Best performance score
    60/100
  • Best economy score
    82/100

Alfa Romeo Brera 3.2 JTS V6

  • Most powerful
    260 hp
    194 kW
  • Highest torque
    322 Nm
    237 lb-ft
  • Largest trunk
    300 L
  • Best overall score
    55/100
  • Best practicality score
    50/100

Specification comparison

Specification comparison
ModelPorscheCayman (987C)2.7Alfa RomeoBrera3.2 JTS V6
Power
245hp183kW
260hp194kW
Torque
273Nm201lb-ft
322Nm237lb-ft
Curb weight
1,300kg2,866lb
1,605kg3,538lb
Gross weight
1,620kg3,571lb
2,065kg4,553lb
Top speed
258 km/h
160 mph
244 km/h
152 mph
To 99% top speed
93.6s99% target: 255 km/h / 159 mph
Calculated
88.2s99% target: 242 km/h / 150 mph
Calculated
0-100 km/h
6.1s
6.8s
0-200 km/h
23.7s
27.4s
Calculated
0-60 mph
5.8s
Calculated
6.4s
Calculated
Fuel consumption
9.3L/100 km25.3mpg US30.4mpg UK
11.4L/100 km20.6mpg US24.8mpg UK
Fuel consumption city
13.8L/100 km17mpg US20.5mpg UK
16.7L/100 km14.1mpg US16.9mpg UK
Fuel consumption highway
6.8L/100 km34.6mpg US41.5mpg UK
8.3L/100 km28.3mpg US34.0mpg UK
Quarter mile
14.2s
Calculated
14.8s
Calculated
Power-to-weight
188hp/t141kW/t85hp/1000 lb
Calculated
162hp/t121kW/t73hp/1000 lb
Calculated
Torque-to-weight
210Nm/t141lb-ft/ton
Calculated
201Nm/t134lb-ft/ton
Calculated
Estimated range
688km428mi
Calculated
614km382mi
Calculated
Displacement
2,687cc164cu in
3,195cc195cu in
Length
4,341mm171in
4,413mm174in
Width
1,801mm71in
1,830mm72in
Height
1,305mm51in
1,341mm53in
Wheelbase
2,415mm95in
2,528mm100in
Front track
1,490mm59in
1,579mm62in
Rear track
1,534mm60in
1,559mm61in
Ground clearance
121mm5in
-
Trunk volume
260L
300L
Max trunk volume-
610L
Doors
2
3
Seats
2
4
Fuel tank
64L
70L
CO2 emissions
222g/km
270g/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) 2.7Alfa Romeo Brera 3.2 JTS V6PowerTorque
  • Porsche Cayman (987C) 2.7: Power / Torque
  • Alfa Romeo Brera 3.2 JTS V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheCayman (987C)2.76,500 rpm4,600-6,000 rpm7,300 rpm
Alfa RomeoBrera3.2 JTS V66,300 rpm4,500 rpm6,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayman (987C)2.7Alfa RomeoBrera3.2 JTS V6
Acceleration checkpoints
0-60 mph
0-97 km/h
5.8 s
6.4 s
0-100 km/h
0-62 mph
6.1 s
6.8 s
0-200 km/h
0-124 mph
23.7 s
27.4 s
Top speed
258 km/h
160 mph
244 km/h
152 mph
Drag race simulation
60 ft
18 m
2.3 s
2.4 s
330 ft
101 m
6.1 s
6.4 s
1/8 mile
201 m
9.3 s
9.7 s
1000 ft
305 m
12.0 s
12.5 s
1/4 mile
402 m
14.2 s
14.8 s
Trap speed
1/4 mile
402 m
161 km/h
100 mph
156 km/h
97 mph

Power comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)2.7
245 hp
183 kW
Alfa RomeoBrera3.2 JTS V6
260 hp
194 kW

Alfa Romeo Brera 3.2 JTS V6 has 15 hp more than Porsche Cayman (987C) 2.7.

The biggest power difference is between Porsche Cayman (987C) 2.7 and Alfa Romeo Brera 3.2 JTS V6: 15 hp (11 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)2.7
273 Nm
201 lb-ft
Alfa RomeoBrera3.2 JTS V6
322 Nm
237 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)2.7
1,300 kg
2,866 lb
Alfa RomeoBrera3.2 JTS V6
1,605 kg
3,538 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)2.7
258 km/h
160 mph
Alfa RomeoBrera3.2 JTS V6
244 km/h
152 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)2.76.1 s
Alfa RomeoBrera3.2 JTS V66.8 s

Although Alfa Romeo Brera 3.2 JTS V6 has more power, Porsche Cayman (987C) 2.7 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche Cayman (987C) 2.7 and Alfa Romeo Brera 3.2 JTS V6: 0.7 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)2.7
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
Alfa RomeoBrera3.2 JTS V6
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

The biggest fuel consumption difference is between Porsche Cayman (987C) 2.7 and Alfa Romeo Brera 3.2 JTS V6: 2.1 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
PorscheCayman (987C)2.7
188 hp/t
141 kW/t
5.3 kg/hp
Alfa RomeoBrera3.2 JTS V6
162 hp/t
121 kW/t
6.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)2.7
688 km
428 mi
Alfa RomeoBrera3.2 JTS V6
614 km
382 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheCayman (987C)2.7
245 hp
183 kW
6.1 s
258 km/h
160 mph
Alfa RomeoBrera3.2 JTS V6
260 hp
194 kW
6.8 s
244 km/h
152 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)2.7
Power
245 hp
183 kW
0-100 km/h6.1 s
Top speed
258 km/h
160 mph
Doors/seats
2 doors
2 seats
Trunk
260 L
9.2 cu ft
Length
4,341 mm
170.9 in
Height
1,305 mm
51.4 in
Alfa RomeoBrera3.2 JTS V6
Power
260 hp
194 kW
0-100 km/h6.8 s
Top speed
244 km/h
152 mph
Doors/seats
3 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,413 mm
173.7 in
Height
1,341 mm
52.8 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)2.7
Power
245 hp
183 kW
0-100 km/h6.1 s
Top speed
258 km/h
160 mph
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
Alfa RomeoBrera3.2 JTS V6
Power
260 hp
194 kW
0-100 km/h6.8 s
Top speed
244 km/h
152 mph
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Porsche Cayman (987C) 2.7 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)2.7
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
6.1 s
Alfa RomeoBrera3.2 JTS V6
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
6.8 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)2.7
188 hp/t
141 kW/t
5.3 kg/hp
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
Alfa RomeoBrera3.2 JTS V6
162 hp/t
121 kW/t
6.2 kg/hp
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayman (987C)2.7Alfa RomeoBrera3.2 JTS V6
Power
245 hp
183 kW
260 hp
194 kW
Torque
273 Nm
201 lb-ft
322 Nm
237 lb-ft
Acceleration
6.1 s
6.8 s
Top speed
258 km/h
160 mph
244 km/h
152 mph
Lightness
1,300 kg
2,866 lb
1,605 kg
3,538 lb
Fuel consumption
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
260 L
9.2 cu ft
Length
4,341 mm
170.9 in
Height
1,305 mm
51.4 in
Doors/seats
3 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,413 mm
173.7 in
Height
1,341 mm
52.8 in
Range score
688 km
428 mi
614 km
382 mi
CO2 score
222 g/km
270 g/km
Trunk score
260 L
9.2 cu ft
300 L
10.6 cu ft
Power-to-weight score
188 hp/t
141 kW/t
5.3 kg/hp
162 hp/t
121 kW/t
6.2 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 Cayman (987C) 2.7Alfa Romeo Brera 3.2 JTS V6
Consumption9.3 L/100 km25.3 mpg US30.4 mpg UK11.4 L/100 km20.6 mpg US24.8 mpg UK
Cost / 100 km16.28 LC100 km19.95 LC100 km
Cost / 100 mi26.19 LC100 mi32.11 LC100 mi
Annual fuel used1,395 L369 US gal307 UK gal1,710 L452 US gal376 UK gal
Annual fuel cost2,441 LC/year2,993 LC/year

Head-to-head comparisons

Porsche Cayman (987C) 2.7

  • Is 305 kg lighter
  • Is 0.7 s quicker from 0-100 km/h
  • Has 14 km/h (9 mph) higher top speed
  • Uses 2.1 L/100 km less fuel
  • Has 26 hp/t better power-to-weight
  • Has 74 km (46 mi) more estimated range
  • Emits 48 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

Alfa Romeo Brera 3.2 JTS V6

  • Has 15 hp more
  • Has 49 Nm more
  • Has 40 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) 2.7
Alfa Romeo Brera 3.2 JTS V6
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