Car comparison

Porsche 911 Cabriolet (991) Carrera S 3.8vsPorsche 911 (992) Carrera 3.0

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

New comparison

Porsche 911 Cabriolet (991)

Carrera S 3.8

400 hp3800 ccGasolineRWDDual-clutchNaturally aspiratedCabriolet / convertible2011-2015

Porsche 911 (992)

Carrera 3.0

385 hp2981 ccGasolineRWDDual-clutchTwin-turboCoupe2019-2024

Comparison overview

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

Porsche 911 Cabriolet (991) Carrera S 3.8

Fastest top speed
299 km/h
186 mph
Most powerful
400 hp
298 kW
Lightest
1,505 kg
3,318 lb
Best power-to-weight
266 hp/t
198 kW/t
3.8 kg/hp
Lowest combined fuel consumption
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Lowest highway consumption
6.9 L/100 km
34.1 mpg US
40.9 mpg UK
Best estimated range
719 km
447 mi
Largest trunk
290 L
Best performance score
79/100
Best economy score
83/100

Porsche 911 (992) Carrera 3.0

Quickest 0-100 km/h
4.2 s
Highest torque
450 Nm
332 lb-ft
Lowest city consumption
11.2 L/100 km
21.0 mpg US
25.2 mpg UK
Lowest CO2 emissions
206 g/km
Best overall score
69/100
Best practicality score
51/100

Specification comparison

Specification comparison
Model	Porsche911 Cabriolet (991)Carrera S 3.8	Porsche911 (992)Carrera 3.0
Power	400hp298kW	385hp287kW
Torque	440Nm325lb-ft	450Nm332lb-ft
Curb weight	1,505kg3,318lb	1,505kg3,318lb
Gross weight	1,905kg4,200lb	1,960kg4,321lb
Top speed	299 km/h 186 mph	293 km/h 182 mph
To 99% top speed	60.4s99% target: 296 km/h / 184 mph Calculated	59.1s99% target: 290 km/h / 180 mph Calculated
0-100 km/h	4.3s	4.2s
0-200 km/h	12.8s Calculated	12.8s Calculated
0-60 mph	4.1s Calculated	4.0s Calculated
Fuel consumption	8.9L/100 km26.4mpg US31.7mpg UK	9L/100 km26.1mpg US31.4mpg UK
Fuel consumption city	12.2L/100 km19.3mpg US23.2mpg UK	11.2L/100 km21mpg US25.2mpg UK
Fuel consumption highway	6.9L/100 km34.1mpg US40.9mpg UK	7.7L/100 km30.5mpg US36.7mpg UK
Quarter mile	12.2s Calculated	12.1s Calculated
Power-to-weight	266hp/t198kW/t121hp/1000 lb Calculated	256hp/t191kW/t116hp/1000 lb Calculated
Torque-to-weight	292Nm/t196lb-ft/ton Calculated	299Nm/t200lb-ft/ton Calculated
Estimated range	719km447mi Calculated	711km442mi Calculated
Displacement	3,800cc232cu in	2,981cc182cu in
Length	4,491mm177in	4,519mm178in
Width	1,808mm71in	1,852mm73in
Height	1,292mm51in	1,298mm51in
Wheelbase	2,450mm96in	2,450mm96in
Front track	1,538mm61in	1,591mm63in
Rear track	1,516mm60in	1,557mm61in
Trunk volume	290L	-
Max trunk volume	-	132L
Doors	2	2
Seats	4	4
Fuel tank	64L	64L
CO2 emissions	207g/km	206g/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) Carrera S 3.8Porsche 911 (992) Carrera 3.0PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Porsche911 Cabriolet (991)Carrera S 3.8	7,400 rpm	5,600 rpm	7,650 rpm
Porsche911 (992)Carrera 3.0	6,500 rpm	1,950-5,000 rpm	6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Porsche911 Cabriolet (991)Carrera S 3.8	Porsche911 (992)Carrera 3.0
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.1 s	4.0 s
0-100 km/h 0-62 mph	4.3 s	4.2 s
0-200 km/h 0-124 mph	12.8 s	12.8 s
Top speed	299 km/h 186 mph	293 km/h 182 mph
	Drag race simulation
60 ft 18 m	2.1 s	2.1 s
330 ft 101 m	5.4 s	5.4 s
1/8 mile 201 m	8.1 s	8.0 s
1000 ft 305 m	10.3 s	10.2 s
1/4 mile 402 m	12.2 s	12.1 s
Trap speed 1/4 mile 402 m	195 km/h 121 mph	195 km/h 121 mph

Power comparison

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

Chart data table
Vehicle	Value
Porsche911 Cabriolet (991)Carrera S 3.8	400 hp 298 kW
Porsche911 (992)Carrera 3.0	385 hp 287 kW

Porsche 911 Cabriolet (991) Carrera S 3.8 has 15 hp more than Porsche 911 (992) Carrera 3.0.

The biggest power difference is between Porsche 911 (992) Carrera 3.0 and Porsche 911 Cabriolet (991) Carrera S 3.8: 15 hp (11 kW).

Torque comparison

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

Chart data table
Vehicle	Value
Porsche911 Cabriolet (991)Carrera S 3.8	440 Nm 325 lb-ft
Porsche911 (992)Carrera 3.0	450 Nm 332 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Porsche911 Cabriolet (991)Carrera S 3.8	1,505 kg 3,318 lb
Porsche911 (992)Carrera 3.0	1,505 kg 3,318 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
Vehicle	Value
Porsche911 Cabriolet (991)Carrera S 3.8	299 km/h 186 mph
Porsche911 (992)Carrera 3.0	293 km/h 182 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
Porsche911 Cabriolet (991)Carrera S 3.8	4.3 s
Porsche911 (992)Carrera 3.0	4.2 s

Although Porsche 911 Cabriolet (991) Carrera S 3.8 has more power, Porsche 911 (992) Carrera 3.0 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 911 (992) Carrera 3.0 and Porsche 911 Cabriolet (991) Carrera S 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
Vehicle	Value
Porsche911 Cabriolet (991)Carrera S 3.8	8.9 L/100 km 26.4 mpg US 31.7 mpg UK
Porsche911 (992)Carrera 3.0	9.0 L/100 km 26.1 mpg US 31.4 mpg UK

Power-to-weight comparison

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

Chart data table
Vehicle	Value
Porsche911 Cabriolet (991)Carrera S 3.8	266 hp/t 198 kW/t 3.8 kg/hp
Porsche911 (992)Carrera 3.0	256 hp/t 191 kW/t 3.9 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
Porsche911 Cabriolet (991)Carrera S 3.8	719 km 447 mi
Porsche911 (992)Carrera 3.0	711 km 442 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Porsche911 Cabriolet (991)Carrera S 3.8	400 hp 298 kW	4.3 s	299 km/h 186 mph
Porsche911 (992)Carrera 3.0	385 hp 287 kW	4.2 s	293 km/h 182 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

Porsche911 Cabriolet (991)Carrera S 3.8

Power	400 hp 298 kW
0-100 km/h	4.3 s
Top speed 299 km/h 186 mph

Doors/seats	2 doors 4 seats
Trunk	290 L 10.2 cu ft
Length	4,491 mm 176.8 in
Height	1,292 mm 50.9 in

Porsche911 (992)Carrera 3.0

Power	385 hp 287 kW
0-100 km/h	4.2 s
Top speed 293 km/h 182 mph

Doors/seats	2 doors 4 seats
Trunk	132 L 4.7 cu ft
Length	4,519 mm 177.9 in
Height	1,298 mm 51.1 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

Porsche911 Cabriolet (991)Carrera S 3.8

Power	400 hp 298 kW
0-100 km/h	4.3 s
Top speed 299 km/h 186 mph

8.9 L/100 km

26.4 mpg US

31.7 mpg UK

Porsche911 (992)Carrera 3.0

Power	385 hp 287 kW
0-100 km/h	4.2 s
Top speed 293 km/h 182 mph

9.0 L/100 km

26.1 mpg US

31.4 mpg UK

Porsche 911 Cabriolet (991) Carrera S 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
Porsche911 Cabriolet (991)Carrera S 3.8	8.9 L/100 km 26.4 mpg US 31.7 mpg UK	4.3 s
Porsche911 (992)Carrera 3.0	9.0 L/100 km 26.1 mpg US 31.4 mpg UK	4.2 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
Porsche911 Cabriolet (991)Carrera S 3.8	266 hp/t 198 kW/t 3.8 kg/hp	8.9 L/100 km 26.4 mpg US 31.7 mpg UK
Porsche911 (992)Carrera 3.0	256 hp/t 191 kW/t 3.9 kg/hp	9.0 L/100 km 26.1 mpg US 31.4 mpg UK

Detailed score breakdown

Vehicle

Porsche911 Cabriolet (991)Carrera S 3.8

Porsche911 (992)Carrera 3.0

Power

400 hp

298 kW

385 hp

287 kW

Torque

440 Nm

325 lb-ft

450 Nm

332 lb-ft

Acceleration

4.3 s

4.2 s

Top speed

299 km/h

186 mph

293 km/h

182 mph

Lightness

1,505 kg

3,318 lb

1,505 kg

3,318 lb

Fuel consumption

8.9 L/100 km

26.4 mpg US

31.7 mpg UK

9.0 L/100 km

26.1 mpg US

31.4 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	290 L 10.2 cu ft
Length	4,491 mm 176.8 in
Height	1,292 mm 50.9 in

Doors/seats	2 doors 4 seats
Trunk	132 L 4.7 cu ft
Length	4,519 mm 177.9 in
Height	1,298 mm 51.1 in

Range score

719 km

447 mi

711 km

442 mi

CO2 score

207 g/km

206 g/km

Trunk score

290 L

10.2 cu ft

132 L

4.7 cu ft

Power-to-weight score

266 hp/t

198 kW/t

3.8 kg/hp

256 hp/t

191 kW/t

3.9 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Porsche 911 Cabriolet (991) Carrera S 3.8	Porsche 911 (992) Carrera 3.0
Consumption	8.9 L/100 km26.4 mpg US31.7 mpg UK	9 L/100 km26.1 mpg US31.4 mpg UK
Cost / 100 km	15.58 LC100 km	15.75 LC100 km
Cost / 100 mi	25.07 LC100 mi	25.35 LC100 mi
Annual fuel used	1,335 L353 US gal294 UK gal	1,350 L357 US gal297 UK gal
Annual fuel cost	2,336 LC/year	2,363 LC/year