Car comparison

Porsche Cayman (987C) S 3.4vsCadillac XLR 4.6 i V8 32V

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

New comparison

Porsche Cayman (987C)

S 3.4

295 hp3386 ccGasolineRWDAutomaticNaturally aspiratedCoupe2005-2009
VS

Cadillac XLR

4.6 i V8 32V

325 hp4565 ccGasolineRWDAutomaticNaturally aspiratedCoupe2003-2009

Comparison overview

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

Best choices

Porsche Cayman (987C) S 3.4

  • Fastest top speed
    267 km/h
    166 mph
  • Lightest
    1,390 kg
    3,064 lb
  • Best power-to-weight
    212 hp/t
    158 kW/t
    4.7 kg/hp
  • Lowest combined fuel consumption
    11.0 L/100 km
    21.4 mpg US
    25.7 mpg UK
  • Lowest city consumption
    16.3 L/100 km
    14.4 mpg US
    17.3 mpg UK
  • Lowest highway consumption
    7.9 L/100 km
    29.8 mpg US
    35.8 mpg UK
  • Lowest CO2 emissions
    262 g/km
  • Best estimated range
    582 km
    362 mi
  • Largest trunk
    260 L
  • Best overall score
    55/100
  • Best economy score
    77/100
  • Best practicality score
    36/100

Cadillac XLR 4.6 i V8 32V

  • Quickest 0-100 km/h
    5.9 s
  • Most powerful
    325 hp
    242 kW
  • Highest torque
    420 Nm
    310 lb-ft
  • Best performance score
    66/100

Specification comparison

Specification comparison
ModelPorscheCayman (987C)S 3.4CadillacXLR4.6 i V8 32V
Power
295hp220kW
325hp242kW
Torque
340Nm251lb-ft
420Nm310lb-ft
Curb weight
1,390kg3,064lb
1,690kg3,726lb
Gross weight
1,670kg3,682lb
-
Top speed
267 km/h
166 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
88.3s99% target: 264 km/h / 164 mph
Calculated
81.2s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
6.1s
5.9s
0-200 km/h
21.6s
20.7s
Calculated
0-60 mph
5.8s
Calculated
5.6s
Calculated
Fuel consumption
11L/100 km21.4mpg US25.7mpg UK
12.3L/100 km19.1mpg US23.0mpg UK
Fuel consumption city
16.3L/100 km14.4mpg US17.3mpg UK
18.2L/100 km12.9mpg US15.5mpg UK
Fuel consumption highway
7.9L/100 km29.8mpg US35.8mpg UK
9L/100 km26.1mpg US31.4mpg UK
Quarter mile
14.2s
Calculated
14.0s
Calculated
Power-to-weight
212hp/t158kW/t96hp/1000 lb
Calculated
192hp/t143kW/t87hp/1000 lb
Calculated
Torque-to-weight
245Nm/t164lb-ft/ton
Calculated
249Nm/t166lb-ft/ton
Calculated
Estimated range
582km362mi
Calculated
553km344mi
Calculated
Displacement
3,386cc207cu in
4,565cc279cu in
Length
4,341mm171in
4,513mm178in
Width
1,801mm71in
1,836mm72in
Height
1,305mm51in
1,279mm50in
Wheelbase
2,415mm95in
2,685mm106in
Front track
1,486mm59in
1,580mm62in
Rear track
1,528mm60in
1,580mm62in
Ground clearance
121mm5in
-
Trunk volume
260L
125L
Max trunk volume-
328L
Doors
2
2
Seats
2
2
Fuel tank
64L
68L
CO2 emissions
262g/km
291g/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) S 3.4Cadillac XLR 4.6 i V8 32VPowerTorque
  • Porsche Cayman (987C) S 3.4: Power / Torque
  • Cadillac XLR 4.6 i V8 32V: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheCayman (987C)S 3.46,250 rpm4,400-6,000 rpm7,300 rpm
CadillacXLR4.6 i V8 32V6,400 rpm4,400 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheCayman (987C)S 3.4CadillacXLR4.6 i V8 32V
Acceleration checkpoints
0-60 mph
0-97 km/h
5.8 s
5.6 s
0-100 km/h
0-62 mph
6.1 s
5.9 s
0-200 km/h
0-124 mph
21.6 s
20.7 s
Top speed
267 km/h
166 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.4 s
2.3 s
330 ft
101 m
6.2 s
6.1 s
1/8 mile
201 m
9.3 s
9.2 s
1000 ft
305 m
11.9 s
11.8 s
1/4 mile
402 m
14.2 s
14.0 s
Trap speed
1/4 mile
402 m
165 km/h
103 mph
168 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)S 3.4
295 hp
220 kW
CadillacXLR4.6 i V8 32V
325 hp
242 kW

Cadillac XLR 4.6 i V8 32V has 30 hp more than Porsche Cayman (987C) S 3.4.

The biggest power difference is between Porsche Cayman (987C) S 3.4 and Cadillac XLR 4.6 i V8 32V: 30 hp (22 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)S 3.4
340 Nm
251 lb-ft
CadillacXLR4.6 i V8 32V
420 Nm
310 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)S 3.4
1,390 kg
3,064 lb
CadillacXLR4.6 i V8 32V
1,690 kg
3,726 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)S 3.4
267 km/h
166 mph
CadillacXLR4.6 i V8 32V
Unrestricted
265 km/h165 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)S 3.46.1 s
CadillacXLR4.6 i V8 32V5.9 s

The biggest 0-100 km/h difference is between Cadillac XLR 4.6 i V8 32V and Porsche Cayman (987C) S 3.4: 0.2 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)S 3.4
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
CadillacXLR4.6 i V8 32V
12.3 L/100 km
19.1 mpg US
23.0 mpg UK

The biggest fuel consumption difference is between Porsche Cayman (987C) S 3.4 and Cadillac XLR 4.6 i V8 32V: 1.3 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)S 3.4
212 hp/t
158 kW/t
4.7 kg/hp
CadillacXLR4.6 i V8 32V
192 hp/t
143 kW/t
5.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
PorscheCayman (987C)S 3.4
582 km
362 mi
CadillacXLR4.6 i V8 32V
553 km
344 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheCayman (987C)S 3.4
295 hp
220 kW
6.1 s
267 km/h
166 mph
CadillacXLR4.6 i V8 32V
325 hp
242 kW
5.9 s
Unrestricted
265 km/h165 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)S 3.4
Power
295 hp
220 kW
0-100 km/h6.1 s
Top speed
267 km/h
166 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
CadillacXLR4.6 i V8 32V
Power
325 hp
242 kW
0-100 km/h5.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
125 L
4.4 cu ft
Length
4,513 mm
177.7 in
Height
1,279 mm
50.4 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
PorscheCayman (987C)S 3.4
Power
295 hp
220 kW
0-100 km/h6.1 s
Top speed
267 km/h
166 mph
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
CadillacXLR4.6 i V8 32V
Power
325 hp
242 kW
0-100 km/h5.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
12.3 L/100 km
19.1 mpg US
23.0 mpg UK

Porsche Cayman (987C) 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)S 3.4
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
6.1 s
CadillacXLR4.6 i V8 32V
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
5.9 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)S 3.4
212 hp/t
158 kW/t
4.7 kg/hp
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
CadillacXLR4.6 i V8 32V
192 hp/t
143 kW/t
5.2 kg/hp
12.3 L/100 km
19.1 mpg US
23.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheCayman (987C)S 3.4CadillacXLR4.6 i V8 32V
Power
295 hp
220 kW
325 hp
242 kW
Torque
340 Nm
251 lb-ft
420 Nm
310 lb-ft
Acceleration
6.1 s
5.9 s
Top speed
267 km/h
166 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,390 kg
3,064 lb
1,690 kg
3,726 lb
Fuel consumption
11.0 L/100 km
21.4 mpg US
25.7 mpg UK
12.3 L/100 km
19.1 mpg US
23.0 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
2 seats
Trunk
125 L
4.4 cu ft
Length
4,513 mm
177.7 in
Height
1,279 mm
50.4 in
Range score
582 km
362 mi
553 km
344 mi
CO2 score
262 g/km
291 g/km
Trunk score
260 L
9.2 cu ft
125 L
4.4 cu ft
Power-to-weight score
212 hp/t
158 kW/t
4.7 kg/hp
192 hp/t
143 kW/t
5.2 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) S 3.4Cadillac XLR 4.6 i V8 32V
Consumption11 L/100 km21.4 mpg US25.7 mpg UK12.3 L/100 km19.1 mpg US23 mpg UK
Cost / 100 km19.25 LC100 km21.53 LC100 km
Cost / 100 mi30.98 LC100 mi34.64 LC100 mi
Annual fuel used1,650 L436 US gal363 UK gal1,845 L487 US gal406 UK gal
Annual fuel cost2,888 LC/year3,229 LC/year

Head-to-head comparisons

Porsche Cayman (987C) S 3.4

  • Is 300 kg lighter
  • Has 2 km/h (1 mph) higher top speed
  • Uses 1.3 L/100 km less fuel
  • Has 20 hp/t better power-to-weight
  • Has 29 km (18 mi) more estimated range
  • Has 135 L more trunk volume
  • Emits 29 g/km less CO2

Pros

  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

Cadillac XLR 4.6 i V8 32V

  • Has 30 hp more
  • Has 80 Nm more
  • Is 0.2 s quicker from 0-100 km/h

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Smallest trunk
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Cayman (987C) S 3.4
Cadillac XLR 4.6 i V8 32V
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