Car comparison

Porsche Cayman (987C) 2.7vsMazda RX-8 1.3 Wankel

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

Mazda RX-8

1.3 Wankel

231 hp1308 ccGasolineRWDManualNaturally aspiratedCoupe2003-2012

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
  • Most powerful
    245 hp
    183 kW
  • Highest torque
    273 Nm
    201 lb-ft
  • 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 overall score
    52/100
  • Best performance score
    60/100
  • Best economy score
    82/100

Specification comparison

Specification comparison
ModelPorscheCayman (987C)2.7MazdaRX-81.3 Wankel
Power
245hp183kW
231hp172kW
Torque
273Nm201lb-ft
211Nm156lb-ft
Curb weight
1,300kg2,866lb
1,379kg3,040lb
Gross weight
1,620kg3,571lb
1,815kg4,001lb
Top speed
258 km/h
160 mph
234 km/h
145 mph
To 99% top speed
93.6s99% target: 255 km/h / 159 mph
Calculated
72.6s99% target: 232 km/h / 144 mph
Calculated
0-100 km/h
6.1s
6.4s
0-200 km/h
23.7s
26.7s
Calculated
0-60 mph
5.8s
Calculated
6.1s
Calculated
Fuel consumption
9.3L/100 km25.3mpg US30.4mpg UK
11.2L/100 km21mpg US25.2mpg UK
Fuel consumption city
13.8L/100 km17mpg US20.5mpg UK
15.6L/100 km15.1mpg US18.1mpg UK
Fuel consumption highway
6.8L/100 km34.6mpg US41.5mpg UK
8.7L/100 km27mpg US32.5mpg UK
Quarter mile
14.2s
Calculated
14.5s
Calculated
Power-to-weight
188hp/t141kW/t85hp/1000 lb
Calculated
168hp/t125kW/t76hp/1000 lb
Calculated
Torque-to-weight
210Nm/t141lb-ft/ton
Calculated
153Nm/t102lb-ft/ton
Calculated
Estimated range
688km428mi
Calculated
545km338mi
Calculated
Displacement
2,687cc164cu in
1,308cc80cu in
Length
4,341mm171in
4,430mm174in
Width
1,801mm71in
1,770mm70in
Height
1,305mm51in
1,340mm53in
Wheelbase
2,415mm95in
2,700mm106in
Front track
1,490mm59in
1,500mm59in
Rear track
1,534mm60in
1,505mm59in
Ground clearance
121mm5in
140mm6in
Trunk volume
260L
290L
Doors
2
2
Seats
2
4
Fuel tank
64L
61L
CO2 emissions
222g/km
284g/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) 2.7Mazda RX-8 1.3 WankelPowerTorque
  • Porsche Cayman (987C) 2.7: Power / Torque
  • Mazda RX-8 1.3 Wankel: 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
MazdaRX-81.3 Wankel8,200 rpm5,500 rpm9,000 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayman (987C)2.7MazdaRX-81.3 Wankel
Acceleration checkpoints
0-60 mph
0-97 km/h
5.8 s
6.1 s
0-100 km/h
0-62 mph
6.1 s
6.4 s
0-200 km/h
0-124 mph
23.7 s
26.7 s
Top speed
258 km/h
160 mph
234 km/h
145 mph
Drag race simulation
60 ft
18 m
2.3 s
2.4 s
330 ft
101 m
6.1 s
6.3 s
1/8 mile
201 m
9.3 s
9.5 s
1000 ft
305 m
12.0 s
12.2 s
1/4 mile
402 m
14.2 s
14.5 s
Trap speed
1/4 mile
402 m
161 km/h
100 mph
159 km/h
99 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
MazdaRX-81.3 Wankel
231 hp
172 kW

Porsche Cayman (987C) 2.7 has 14 hp more than Mazda RX-8 1.3 Wankel.

The biggest power difference is between Mazda RX-8 1.3 Wankel and Porsche Cayman (987C) 2.7: 14 hp (10 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
MazdaRX-81.3 Wankel
211 Nm
156 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
MazdaRX-81.3 Wankel
1,379 kg
3,040 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
MazdaRX-81.3 Wankel
234 km/h
145 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
MazdaRX-81.3 Wankel6.4 s

The biggest 0-100 km/h difference is between Porsche Cayman (987C) 2.7 and Mazda RX-8 1.3 Wankel: 0.3 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
MazdaRX-81.3 Wankel
11.2 L/100 km
21.0 mpg US
25.2 mpg UK

The biggest fuel consumption difference is between Porsche Cayman (987C) 2.7 and Mazda RX-8 1.3 Wankel: 1.9 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
PorscheCayman (987C)2.7
188 hp/t
141 kW/t
5.3 kg/hp
MazdaRX-81.3 Wankel
168 hp/t
125 kW/t
6.0 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
MazdaRX-81.3 Wankel
545 km
338 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
MazdaRX-81.3 Wankel
231 hp
172 kW
6.4 s
234 km/h
145 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
MazdaRX-81.3 Wankel
Power
231 hp
172 kW
0-100 km/h6.4 s
Top speed
234 km/h
145 mph
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,430 mm
174.4 in
Height
1,340 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
MazdaRX-81.3 Wankel
Power
231 hp
172 kW
0-100 km/h6.4 s
Top speed
234 km/h
145 mph
11.2 L/100 km
21.0 mpg US
25.2 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
MazdaRX-81.3 Wankel
11.2 L/100 km
21.0 mpg US
25.2 mpg UK
6.4 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
MazdaRX-81.3 Wankel
168 hp/t
125 kW/t
6.0 kg/hp
11.2 L/100 km
21.0 mpg US
25.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayman (987C)2.7MazdaRX-81.3 Wankel
Power
245 hp
183 kW
231 hp
172 kW
Torque
273 Nm
201 lb-ft
211 Nm
156 lb-ft
Acceleration
6.1 s
6.4 s
Top speed
258 km/h
160 mph
234 km/h
145 mph
Lightness
1,300 kg
2,866 lb
1,379 kg
3,040 lb
Fuel consumption
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
11.2 L/100 km
21.0 mpg US
25.2 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
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,430 mm
174.4 in
Height
1,340 mm
52.8 in
Range score
688 km
428 mi
545 km
338 mi
CO2 score
222 g/km
284 g/km
Trunk score
260 L
9.2 cu ft
290 L
10.2 cu ft
Power-to-weight score
188 hp/t
141 kW/t
5.3 kg/hp
168 hp/t
125 kW/t
6.0 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) 2.7Mazda RX-8 1.3 Wankel
Consumption9.3 L/100 km25.3 mpg US30.4 mpg UK11.2 L/100 km21 mpg US25.2 mpg UK
Cost / 100 km16.28 LC100 km19.60 LC100 km
Cost / 100 mi26.19 LC100 mi31.54 LC100 mi
Annual fuel used1,395 L369 US gal307 UK gal1,680 L444 US gal370 UK gal
Annual fuel cost2,441 LC/year2,940 LC/year

Head-to-head comparisons

Porsche Cayman (987C) 2.7

  • Has 14 hp more
  • Has 62 Nm more
  • Is 79 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 24 km/h (15 mph) higher top speed
  • Uses 1.9 L/100 km less fuel
  • Has 21 hp/t better power-to-weight
  • Has 144 km (89 mi) more estimated range
  • Emits 62 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

Mazda RX-8 1.3 Wankel

  • Has 30 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 Cayman (987C) 2.7
Mazda RX-8 1.3 Wankel
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