Car comparison

Porsche 911 Cabriolet (991) Turbo 3.8vsPorsche 911 (997) · Facelift 2008 Turbo 3.8

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

New comparison

Porsche 911 Cabriolet (991)

Turbo 3.8

520 hp3800 ccGasolineAWDDual-clutchTwin-turboCabriolet / convertible2013-2016
VS

Porsche 911 (997) · Facelift 2008

Turbo 3.8

500 hp3800 ccGasolineAWDDual-clutchTurbochargedCoupe2009-2011

Comparison overview

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

Best choices

Porsche 911 Cabriolet (991) Turbo 3.8

  • Quickest 0-100 km/h
    3.5 s
  • Fastest top speed
    315 km/h
    196 mph
  • Most powerful
    520 hp
    388 kW
  • Highest torque
    660 Nm
    487 lb-ft
  • Lowest combined fuel consumption
    9.9 L/100 km
    23.8 mpg US
    28.5 mpg UK
  • Lowest city consumption
    13.4 L/100 km
    17.6 mpg US
    21.1 mpg UK
  • Lowest highway consumption
    7.8 L/100 km
    30.2 mpg US
    36.2 mpg UK
  • Lowest CO2 emissions
    231 g/km
  • Best estimated range
    687 km
    427 mi
  • Largest trunk
    275 L
  • Best performance score
    91/100
  • Best economy score
    80/100

Specification comparison

Specification comparison
ModelPorsche911 Cabriolet (991)Turbo 3.8Porsche911 (997)Facelift 2008Turbo 3.8
Power
520hp388kW
500hp373kW
Torque
660Nm487lb-ft
650Nm479lb-ft
Curb weight
1,665kg3,671lb
1,595kg3,516lb
Gross weight
2,045kg4,508lb
1,960kg4,321lb
Top speed
315 km/h
196 mph
312 km/h
194 mph
To 99% top speed
51.1s99% target: 312 km/h / 194 mph
Calculated
52.6s99% target: 309 km/h / 192 mph
Calculated
0-100 km/h
3.5s
3.6s
0-200 km/h
10.0s
Calculated
10.3s
Calculated
0-60 mph
3.3s
Calculated
3.4s
Calculated
Fuel consumption
9.9L/100 km23.8mpg US28.5mpg UK
11.4L/100 km20.6mpg US24.8mpg UK
Fuel consumption city
13.4L/100 km17.6mpg US21.1mpg UK
16.5L/100 km14.3mpg US17.1mpg UK
Fuel consumption highway
7.8L/100 km30.2mpg US36.2mpg UK
8.1L/100 km29mpg US34.9mpg UK
Quarter mile
11.2s
Calculated
11.3s
Calculated
Power-to-weight
312hp/t233kW/t142hp/1000 lb
Calculated
313hp/t234kW/t142hp/1000 lb
Calculated
Torque-to-weight
396Nm/t265lb-ft/ton
Calculated
408Nm/t273lb-ft/ton
Calculated
Estimated range
687km427mi
Calculated
588km365mi
Calculated
Displacement
3,800cc232cu in
3,800cc232cu in
Length
4,506mm177in
4,450mm175in
Width
1,880mm74in
1,852mm73in
Height
1,292mm51in
1,300mm51in
Wheelbase
2,450mm96in
2,350mm93in
Front track
1,541mm61in
-
Rear track
1,590mm63in
-
Trunk volume
275L
-
Max trunk volume-
105L
Doors
2
2
Seats
4
4
Fuel tank
68L
67L
CO2 emissions
231g/km
268g/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 911 Cabriolet (991) Turbo 3.8Porsche 911 (997) Facelift 2008 Turbo 3.8PowerTorque
  • Porsche 911 Cabriolet (991) Turbo 3.8: Power / Torque
  • Porsche 911 (997) Facelift 2008 Turbo 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 Cabriolet (991)Turbo 3.86,000-6,500 rpm1,950-5,000 rpm6,750 rpm
Porsche911 (997)Facelift 2008Turbo 3.86,000-6,500 rpm1,950-5,000 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 Cabriolet (991)Turbo 3.8Porsche911 (997)Facelift 2008Turbo 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.3 s
3.4 s
0-100 km/h
0-62 mph
3.5 s
3.6 s
0-200 km/h
0-124 mph
10.0 s
10.3 s
Top speed
315 km/h
196 mph
312 km/h
194 mph
Drag race simulation
60 ft
18 m
1.9 s
2.0 s
330 ft
101 m
5.0 s
5.0 s
1/8 mile
201 m
7.4 s
7.5 s
1000 ft
305 m
9.4 s
9.6 s
1/4 mile
402 m
11.2 s
11.3 s
Trap speed
1/4 mile
402 m
212 km/h
132 mph
209 km/h
130 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo 3.8
520 hp
388 kW
Porsche911 (997)Facelift 2008Turbo 3.8
500 hp
373 kW

Porsche 911 Cabriolet (991) Turbo 3.8 has 20 hp more than Porsche 911 (997) Facelift 2008 Turbo 3.8.

The biggest power difference is between Porsche 911 (997) Facelift 2008 Turbo 3.8 and Porsche 911 Cabriolet (991) Turbo 3.8: 20 hp (15 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo 3.8
660 Nm
487 lb-ft
Porsche911 (997)Facelift 2008Turbo 3.8
650 Nm
479 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo 3.8
1,665 kg
3,671 lb
Porsche911 (997)Facelift 2008Turbo 3.8
1,595 kg
3,516 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 (991)Turbo 3.8
315 km/h
196 mph
Porsche911 (997)Facelift 2008Turbo 3.8
312 km/h
194 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo 3.83.5 s
Porsche911 (997)Facelift 2008Turbo 3.83.6 s

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (991) Turbo 3.8 and Porsche 911 (997) Facelift 2008 Turbo 3.8: 0.1 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo 3.8
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
Porsche911 (997)Facelift 2008Turbo 3.8
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (991) Turbo 3.8 and Porsche 911 (997) Facelift 2008 Turbo 3.8: 1.5 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
Porsche911 Cabriolet (991)Turbo 3.8
312 hp/t
233 kW/t
3.2 kg/hp
Porsche911 (997)Facelift 2008Turbo 3.8
313 hp/t
234 kW/t
3.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Turbo 3.8
687 km
427 mi
Porsche911 (997)Facelift 2008Turbo 3.8
588 km
365 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 Cabriolet (991)Turbo 3.8
520 hp
388 kW
3.5 s
315 km/h
196 mph
Porsche911 (997)Facelift 2008Turbo 3.8
500 hp
373 kW
3.6 s
312 km/h
194 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 (991)Turbo 3.8
Power
520 hp
388 kW
0-100 km/h3.5 s
Top speed
315 km/h
196 mph
Doors/seats
2 doors
4 seats
Trunk
275 L
9.7 cu ft
Length
4,506 mm
177.4 in
Height
1,292 mm
50.9 in
Porsche911 (997)Facelift 2008Turbo 3.8
Power
500 hp
373 kW
0-100 km/h3.6 s
Top speed
312 km/h
194 mph
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 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
Porsche911 Cabriolet (991)Turbo 3.8
Power
520 hp
388 kW
0-100 km/h3.5 s
Top speed
315 km/h
196 mph
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
Porsche911 (997)Facelift 2008Turbo 3.8
Power
500 hp
373 kW
0-100 km/h3.6 s
Top speed
312 km/h
194 mph
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Porsche 911 Cabriolet (991) Turbo 3.8 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
Porsche911 Cabriolet (991)Turbo 3.8
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
3.5 s
Porsche911 (997)Facelift 2008Turbo 3.8
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
3.6 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
Porsche911 Cabriolet (991)Turbo 3.8
312 hp/t
233 kW/t
3.2 kg/hp
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
Porsche911 (997)Facelift 2008Turbo 3.8
313 hp/t
234 kW/t
3.2 kg/hp
11.4 L/100 km
20.6 mpg US
24.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 Cabriolet (991)Turbo 3.8Porsche911 (997)Facelift 2008Turbo 3.8
Power
520 hp
388 kW
500 hp
373 kW
Torque
660 Nm
487 lb-ft
650 Nm
479 lb-ft
Acceleration
3.5 s
3.6 s
Top speed
315 km/h
196 mph
312 km/h
194 mph
Lightness
1,665 kg
3,671 lb
1,595 kg
3,516 lb
Fuel consumption
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
275 L
9.7 cu ft
Length
4,506 mm
177.4 in
Height
1,292 mm
50.9 in
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 in
Range score
687 km
427 mi
588 km
365 mi
CO2 score
231 g/km
268 g/km
Trunk score
275 L
9.7 cu ft
105 L
3.7 cu ft
Power-to-weight score
312 hp/t
233 kW/t
3.2 kg/hp
313 hp/t
234 kW/t
3.2 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 911 Cabriolet (991) Turbo 3.8Porsche 911 (997) Facelift 2008 Turbo 3.8
Consumption9.9 L/100 km23.8 mpg US28.5 mpg UK11.4 L/100 km20.6 mpg US24.8 mpg UK
Cost / 100 km17.33 LC100 km19.95 LC100 km
Cost / 100 mi27.88 LC100 mi32.11 LC100 mi
Annual fuel used1,485 L392 US gal327 UK gal1,710 L452 US gal376 UK gal
Annual fuel cost2,599 LC/year2,993 LC/year

Head-to-head comparisons

Porsche 911 Cabriolet (991) Turbo 3.8

  • Has 20 hp more
  • Has 10 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Has 3 km/h (2 mph) higher top speed
  • Uses 1.5 L/100 km less fuel
  • Has 99 km (62 mi) more estimated range
  • Has 170 L more trunk volume
  • Emits 37 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Heaviest

Porsche 911 (997) Facelift 2008 Turbo 3.8

  • Is 70 kg lighter
  • Has 1 hp/t better power-to-weight

Pros

  • Lightest
  • Best power-to-weight ratio

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 Cabriolet (991) Turbo 3.8
Porsche 911 (997) Turbo 3.8
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