Car comparison

Porsche 911 (991) GT3 3.8vsPorsche 911 Cabriolet (992) · Facelift 2024 Carrera 4S 3.0

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

New comparison

Porsche 911 (991)

GT3 3.8

475 hp3799 ccGasolineRWDDual-clutchNaturally aspiratedCoupe2013-2017

Porsche 911 Cabriolet (992) · Facelift 2024

Carrera 4S 3.0

480 hp2981 ccGasolineAWDDual-clutchTwin-turboCabriolet / convertible2025-present

Comparison overview

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

Porsche 911 (991) GT3 3.8

Quickest 0-100 km/h
3.5 s
Fastest top speed
315 km/h
196 mph
Lightest
1,430 kg
3,153 lb
Best power-to-weight
332 hp/t
248 kW/t
3.0 kg/hp
Largest trunk
385 L
Best overall score
72/100
Best practicality score
41/100

Porsche 911 Cabriolet (992) Facelift 2024 Carrera 4S 3.0

Most powerful
480 hp
358 kW
Highest torque
530 Nm
391 lb-ft
Lowest combined fuel consumption
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
Best performance score
87/100
Best economy score
78/100

Specification comparison

Specification comparison
Model	Porsche911 (991)GT3 3.8	Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0
Power	475hp354kW	480hp358kW
Torque	440Nm325lb-ft	530Nm391lb-ft
Curb weight	1,430kg3,153lb	1,670kg3,682lb
Gross weight	1,720kg3,792lb	2,065kg4,553lb
Top speed	315 km/h 196 mph	308 km/h 191 mph
To 99% top speed	50.5s99% target: 312 km/h / 194 mph Calculated	85.2s99% target: 305 km/h / 189 mph Calculated
0-100 km/h	3.5s	3.5s
0-200 km/h	9.9s Calculated	12.5s
0-60 mph	3.3s Calculated	3.3s Calculated
Fuel consumption	12.4L/100 km19mpg US22.8mpg UK	10.9L/100 km21.6mpg US25.9mpg UK
Fuel consumption city	18.9L/100 km12.4mpg US14.9mpg UK	-
Fuel consumption highway	8.9L/100 km26.4mpg US31.7mpg UK	-
Quarter mile	11.2s Calculated	11.6s Calculated
Power-to-weight	332hp/t248kW/t151hp/1000 lb Calculated	287hp/t214kW/t130hp/1000 lb Calculated
Torque-to-weight	308Nm/t206lb-ft/ton Calculated	317Nm/t212lb-ft/ton Calculated
Estimated range	516km321mi Calculated	-
Displacement	3,799cc232cu in	2,981cc182cu in
Length	4,545mm179in	4,542mm179in
Width	1,852mm73in	1,852mm73in
Height	1,269mm50in	1,302mm51in
Wheelbase	2,457mm97in	2,450mm96in
Front track	1,551mm61in	-
Rear track	1,555mm61in	-
Ground clearance	-	124mm5in
Trunk volume	385L	163L
Doors	2	2
Seats	2	4
Fuel tank	64L	-
CO2 emissions	289g/km	-

Performance charts

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

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Porsche911 (991)GT3 3.8	Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0
	Acceleration checkpoints
0-60 mph 0-97 km/h	3.3 s	3.3 s
0-100 km/h 0-62 mph	3.5 s	3.5 s
0-200 km/h 0-124 mph	9.9 s	12.5 s
Top speed	315 km/h 196 mph	308 km/h 191 mph
	Drag race simulation
60 ft 18 m	2.0 s	1.8 s
330 ft 101 m	5.0 s	4.9 s
1/8 mile 201 m	7.4 s	7.5 s
1000 ft 305 m	9.4 s	9.7 s
1/4 mile 402 m	11.2 s	11.6 s
Trap speed 1/4 mile 402 m	213 km/h 132 mph	193 km/h 120 mph

Power comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)GT3 3.8	475 hp 354 kW
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	480 hp 358 kW

Porsche 911 Cabriolet (992) Facelift 2024 Carrera 4S 3.0 has 5 hp more than Porsche 911 (991) GT3 3.8.

The biggest power difference is between Porsche 911 (991) GT3 3.8 and Porsche 911 Cabriolet (992) Facelift 2024 Carrera 4S 3.0: 5 hp (4 kW).

Torque comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)GT3 3.8	440 Nm 325 lb-ft
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	530 Nm 391 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)GT3 3.8	1,430 kg 3,153 lb
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	1,670 kg 3,682 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 (991)GT3 3.8	315 km/h 196 mph
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	308 km/h 191 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
Porsche911 (991)GT3 3.8	3.5 s
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	3.5 s

Although Porsche 911 Cabriolet (992) Facelift 2024 Carrera 4S 3.0 has more power, Porsche 911 (991) GT3 3.8 is quicker from 0-100 km/h.

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 (991)GT3 3.8	12.4 L/100 km 19.0 mpg US 22.8 mpg UK
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	10.9 L/100 km 21.6 mpg US 25.9 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (992) Facelift 2024 Carrera 4S 3.0 and Porsche 911 (991) GT3 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
Vehicle	Value
Porsche911 (991)GT3 3.8	332 hp/t 248 kW/t 3.0 kg/hp
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	287 hp/t 214 kW/t 3.5 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Porsche911 (991)GT3 3.8	475 hp 354 kW	3.5 s	315 km/h 196 mph
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	480 hp 358 kW	3.5 s	308 km/h 191 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 (991)GT3 3.8

Power	475 hp 354 kW
0-100 km/h	3.5 s
Top speed 315 km/h 196 mph

Doors/seats	2 doors 2 seats
Trunk	385 L 13.6 cu ft
Length	4,545 mm 178.9 in
Height	1,269 mm 50.0 in

Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0

Power	480 hp 358 kW
0-100 km/h	3.5 s
Top speed 308 km/h 191 mph

Doors/seats	2 doors 4 seats
Trunk	163 L 5.8 cu ft
Length	4,542 mm 178.8 in
Height	1,302 mm 51.3 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 (991)GT3 3.8

Power	475 hp 354 kW
0-100 km/h	3.5 s
Top speed 315 km/h 196 mph

12.4 L/100 km

19.0 mpg US

22.8 mpg UK

Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0

Power	480 hp 358 kW
0-100 km/h	3.5 s
Top speed 308 km/h 191 mph

10.9 L/100 km

21.6 mpg US

25.9 mpg UK

Porsche 911 Cabriolet (992) Facelift 2024 Carrera 4S 3.0 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 (991)GT3 3.8	12.4 L/100 km 19.0 mpg US 22.8 mpg UK	3.5 s
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	10.9 L/100 km 21.6 mpg US 25.9 mpg UK	3.5 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 (991)GT3 3.8	332 hp/t 248 kW/t 3.0 kg/hp	12.4 L/100 km 19.0 mpg US 22.8 mpg UK
Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0	287 hp/t 214 kW/t 3.5 kg/hp	10.9 L/100 km 21.6 mpg US 25.9 mpg UK

Detailed score breakdown

Vehicle

Porsche911 (991)GT3 3.8

Porsche911 Cabriolet (992)Facelift 2024Carrera 4S 3.0

Power

475 hp

354 kW

480 hp

358 kW

Torque

440 Nm

325 lb-ft

530 Nm

391 lb-ft

Acceleration

3.5 s

Top speed

315 km/h

196 mph

308 km/h

191 mph

Lightness

1,430 kg

3,153 lb

1,670 kg

3,682 lb

Fuel consumption

12.4 L/100 km

19.0 mpg US

22.8 mpg UK

10.9 L/100 km

21.6 mpg US

25.9 mpg UK

Practicality

Doors/seats	2 doors 2 seats
Trunk	385 L 13.6 cu ft
Length	4,545 mm 178.9 in
Height	1,269 mm 50.0 in

Doors/seats	2 doors 4 seats
Trunk	163 L 5.8 cu ft
Length	4,542 mm 178.8 in
Height	1,302 mm 51.3 in

Range score

516 km

321 mi

CO2 score

289 g/km

Trunk score

385 L

13.6 cu ft

163 L

5.8 cu ft

Power-to-weight score

332 hp/t

248 kW/t

3.0 kg/hp

287 hp/t

214 kW/t

3.5 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 (991) GT3 3.8	Porsche 911 Cabriolet (992) Facelift 2024 Carrera 4S 3.0
Consumption	12.4 L/100 km19 mpg US22.8 mpg UK	10.9 L/100 km21.6 mpg US25.9 mpg UK
Cost / 100 km	21.70 LC100 km	19.08 LC100 km
Cost / 100 mi	34.92 LC100 mi	30.70 LC100 mi
Annual fuel used	1,860 L491 US gal409 UK gal	1,635 L432 US gal360 UK gal
Annual fuel cost	3,255 LC/year	2,861 LC/year