Car comparison

Porsche 911 Cabriolet (997) Turbo 3.6vsPorsche 911 Speedster 3.6

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

New comparison

Porsche 911 Cabriolet (997)

Turbo 3.6

480 hp3600 ccGasolineAWDManualTurbochargedCabriolet / convertible2007-2008
VS

Porsche 911 Speedster

3.6

250 hp3600 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible1989-1989

Comparison overview

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

Best choices

Porsche 911 Cabriolet (997) Turbo 3.6

  • Quickest 0-100 km/h
    4.0 s
  • Fastest top speed
    320 km/h
    199 mph Unrestricted
    310 km/h
    193 mph Restricted
  • Most powerful
    480 hp
    358 kW
  • Highest torque
    620 Nm
    457 lb-ft
  • Best power-to-weight
    290 hp/t
    216 kW/t
    3.4 kg/hp
  • Best overall score
    75/100
  • Best performance score
    88/100
  • Best economy score
    72/100
  • Best practicality score
    47/100

Porsche 911 Speedster 3.6

  • Lightest
    1,350 kg
    2,976 lb
  • Lowest city consumption
    17.1 L/100 km
    13.8 mpg US
    16.5 mpg UK
  • Lowest highway consumption
    7.8 L/100 km
    30.2 mpg US
    36.2 mpg UK

Specification comparison

Specification comparison
ModelPorsche911 Cabriolet (997)Turbo 3.6Porsche911 Speedster3.6
Power
480hp358kW
250hp186kW
Torque
620Nm457lb-ft
310Nm229lb-ft
Curb weight
1,655kg3,649lb
1,350kg2,976lb
Gross weight
2,000kg4,409lb
1,600kg3,527lb
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Calculated
Unrestricted
270 km/h168 mph
Restricted
260 km/h162 mph
Calculated
To 99% top speed
61.0s99% target: 317 km/h / 197 mph
Calculated
75.8s99% target: 267 km/h / 166 mph
Calculated
0-100 km/h
4.0s
5.7s
0-200 km/h
11.4s
Calculated
19.0s
Calculated
0-60 mph
3.8s
Calculated
5.4s
Calculated
Fuel consumption
12.9L/100 km18.2mpg US21.9mpg UK
-
Fuel consumption city
19.2L/100 km12.3mpg US14.7mpg UK
17.1L/100 km13.8mpg US16.5mpg UK
Fuel consumption highway
9.5L/100 km24.8mpg US29.7mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Quarter mile
11.8s
Calculated
13.7s
Calculated
Power-to-weight
290hp/t216kW/t132hp/1000 lb
Calculated
185hp/t138kW/t84hp/1000 lb
Calculated
Torque-to-weight
375Nm/t251lb-ft/ton
Calculated
230Nm/t154lb-ft/ton
Calculated
Estimated range
496km308mi
Calculated
-
Displacement
3,600cc220cu in
3,600cc220cu in
Length
4,427mm174in
4,250mm167in
Width
1,808mm71in
1,652mm65in
Height
1,310mm52in
1,280mm50in
Wheelbase
2,350mm93in
2,272mm89in
Front track-
1,374mm54in
Rear track-
1,374mm54in
Ground clearance-
115mm5in
Doors
2
2
Seats
4
2
Fuel tank
64L
77L

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 Cabriolet (997) Turbo 3.6Porsche 911 Speedster 3.6PowerTorque
  • Porsche 911 Cabriolet (997) Turbo 3.6: Power / Torque
  • Porsche 911 Speedster 3.6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 Cabriolet (997)Turbo 3.66,000 rpm1,950-5,000 rpm6,250 rpm
Porsche911 Speedster3.66,100 rpm4,800 rpm6,350 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 Cabriolet (997)Turbo 3.6Porsche911 Speedster3.6
Acceleration checkpoints
0-60 mph
0-97 km/h
3.8 s
5.4 s
0-100 km/h
0-62 mph
4.0 s
5.7 s
0-200 km/h
0-124 mph
11.4 s
19.0 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Likely limited
Unrestricted
270 km/h168 mph
Restricted
260 km/h162 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.3 s
330 ft
101 m
5.3 s
6.1 s
1/8 mile
201 m
7.8 s
9.1 s
1000 ft
305 m
10.0 s
11.6 s
1/4 mile
402 m
11.8 s
13.7 s
Trap speed
1/4 mile
402 m
204 km/h
127 mph
172 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (997)Turbo 3.6
480 hp
358 kW
Porsche911 Speedster3.6
250 hp
186 kW

Porsche 911 Cabriolet (997) Turbo 3.6 has 230 hp more than Porsche 911 Speedster 3.6.

The biggest power difference is between Porsche 911 Speedster 3.6 and Porsche 911 Cabriolet (997) Turbo 3.6: 230 hp (172 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (997)Turbo 3.6
620 Nm
457 lb-ft
Porsche911 Speedster3.6
310 Nm
229 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (997)Turbo 3.6
1,655 kg
3,649 lb
Porsche911 Speedster3.6
1,350 kg
2,976 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 Cabriolet (997)Turbo 3.6
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Porsche911 Speedster3.6
Unrestricted
270 km/h168 mph
Restricted
260 km/h162 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (997)Turbo 3.64.0 s
Porsche911 Speedster3.65.7 s

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (997) Turbo 3.6 and Porsche 911 Speedster 3.6: 1.7 s.

Power-to-weight comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (997)Turbo 3.6
290 hp/t
216 kW/t
3.4 kg/hp
Porsche911 Speedster3.6
185 hp/t
138 kW/t
5.4 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 Cabriolet (997)Turbo 3.6
480 hp
358 kW
4.0 s
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Porsche911 Speedster3.6
250 hp
186 kW
5.7 s
Unrestricted
270 km/h168 mph
Restricted
260 km/h162 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 Cabriolet (997)Turbo 3.6
Power
480 hp
358 kW
0-100 km/h4.0 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Doors/seats
2 doors
4 seats
Trunk-
Length
4,427 mm
174.3 in
Height
1,310 mm
51.6 in
Porsche911 Speedster3.6
Power
250 hp
186 kW
0-100 km/h5.7 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
260 km/h162 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,250 mm
167.3 in
Height
1,280 mm
50.4 in

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 Cabriolet (997)Turbo 3.6Porsche911 Speedster3.6
Power
480 hp
358 kW
250 hp
186 kW
Torque
620 Nm
457 lb-ft
310 Nm
229 lb-ft
Acceleration
4.0 s
5.7 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Unrestricted
270 km/h168 mph
Restricted
260 km/h162 mph
Lightness
1,655 kg
3,649 lb
1,350 kg
2,976 lb
Fuel consumption
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
-
Practicality
Doors/seats
2 doors
4 seats
Trunk-
Length
4,427 mm
174.3 in
Height
1,310 mm
51.6 in
Doors/seats
2 doors
2 seats
Trunk-
Length
4,250 mm
167.3 in
Height
1,280 mm
50.4 in
Range score
496 km
308 mi
-
Power-to-weight score
290 hp/t
216 kW/t
3.4 kg/hp
185 hp/t
138 kW/t
5.4 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 Cabriolet (997) Turbo 3.6
Consumption12.9 L/100 km18.2 mpg US21.9 mpg UK
Cost / 100 km22.58 LC100 km
Cost / 100 mi36.33 LC100 mi
Annual fuel used1,935 L511 US gal426 UK gal
Annual fuel cost3,386 LC/year

Head-to-head comparisons

Porsche 911 Cabriolet (997) Turbo 3.6

  • Has 230 hp more
  • Has 310 Nm more
  • Is 1.7 s quicker from 0-100 km/h
  • Has 50 km/h (31 mph) higher top speed
  • Has 105 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Best power-to-weight ratio

Cons

  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 Cabriolet (997) Turbo 3.6
Porsche 911 Speedster 3.6
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