Car comparison

Porsche 911 (991) GT3 RS 4.0vsPorsche 911 Cabriolet (992) · Facelift 2024 Carrera GTS 3.6

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

New comparison

Porsche 911 (991)

GT3 RS 4.0

500 hp3996 ccGasolineRWDDual-clutchNaturally aspiratedCoupe2015-2017
VS

Porsche 911 Cabriolet (992) · Facelift 2024

Carrera GTS 3.6

485 hp3591 ccGasolineRWDDual-clutchTurbochargedCabriolet / convertible2024-present

Comparison overview

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

Best choices

Porsche 911 (991) GT3 RS 4.0

  • Fastest top speed
    320 km/h
    199 mph Unrestricted
    310 km/h
    193 mph Restricted
  • Most powerful
    500 hp
    373 kW
  • Lightest
    1,420 kg
    3,131 lb
  • Best power-to-weight
    352 hp/t
    263 kW/t
    2.8 kg/hp
  • Best performance score
    89/100

Specification comparison

Specification comparison
ModelPorsche911 (991)GT3 RS 4.0Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
Power
500hp373kW
485hp362kW
Torque
460Nm339lb-ft
570Nm420lb-ft
Curb weight
1,420kg3,131lb
1,675kg3,693lb
Gross weight
1,720kg3,792lb
2,095kg4,619lb
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Calculated
312 km/h
194 mph
To 99% top speed
47.9s99% target: 317 km/h / 197 mph
Calculated
75.7s99% target: 309 km/h / 192 mph
Calculated
0-100 km/h
3.3s
3.1s
0-200 km/h
9.2s
Calculated
10.9s
0-60 mph
3.2s
Calculated
2.9s
Calculated
Fuel consumption
12.7L/100 km18.5mpg US22.2mpg UK
10.7L/100 km22mpg US26.4mpg UK
Fuel consumption city
19.2L/100 km12.3mpg US14.7mpg UK
-
Fuel consumption highway
8.9L/100 km26.4mpg US31.7mpg UK
-
Quarter mile
10.9s
Calculated
11.1s
Calculated
Power-to-weight
352hp/t263kW/t160hp/1000 lb
Calculated
290hp/t216kW/t131hp/1000 lb
Calculated
Torque-to-weight
324Nm/t217lb-ft/ton
Calculated
340Nm/t228lb-ft/ton
Calculated
Estimated range
504km313mi
Calculated
-
Displacement
3,996cc244cu in
3,591cc219cu in
Length
4,545mm179in
4,553mm179in
Width
1,880mm74in
1,852mm73in
Height
1,291mm51in
-
Wheelbase
2,457mm97in
2,450mm96in
Front track
1,587mm62in
-
Rear track
1,557mm61in
-
Trunk volume
125L
-
Max trunk volume
260L
135L
Doors
2
2
Seats
2
4
Fuel tank
64L
-
CO2 emissions
296g/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
MetricPorsche911 (991)GT3 RS 4.0Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
Acceleration checkpoints
0-60 mph
0-97 km/h
3.2 s
2.9 s
0-100 km/h
0-62 mph
3.3 s
3.1 s
0-200 km/h
0-124 mph
9.2 s
10.9 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Likely limited
312 km/h
194 mph
Drag race simulation
60 ft
18 m
1.9 s
1.7 s
330 ft
101 m
4.9 s
4.7 s
1/8 mile
201 m
7.2 s
7.1 s
1000 ft
305 m
9.2 s
9.3 s
1/4 mile
402 m
10.9 s
11.1 s
Trap speed
1/4 mile
402 m
218 km/h
136 mph
201 km/h
125 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 (991)GT3 RS 4.0
500 hp
373 kW
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
485 hp
362 kW

Porsche 911 (991) GT3 RS 4.0 has 15 hp more than Porsche 911 Cabriolet (992) Facelift 2024 Carrera GTS 3.6.

The biggest power difference is between Porsche 911 Cabriolet (992) Facelift 2024 Carrera GTS 3.6 and Porsche 911 (991) GT3 RS 4.0: 15 hp (11 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (991)GT3 RS 4.0
460 Nm
339 lb-ft
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
570 Nm
420 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 (991)GT3 RS 4.0
1,420 kg
3,131 lb
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
1,675 kg
3,693 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 (991)GT3 RS 4.0
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
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 (991)GT3 RS 4.03.3 s
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.63.1 s

Although Porsche 911 (991) GT3 RS 4.0 has more power, Porsche 911 Cabriolet (992) Facelift 2024 Carrera GTS 3.6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (992) Facelift 2024 Carrera GTS 3.6 and Porsche 911 (991) GT3 RS 4.0: 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
Porsche911 (991)GT3 RS 4.0
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
10.7 L/100 km
22.0 mpg US
26.4 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (992) Facelift 2024 Carrera GTS 3.6 and Porsche 911 (991) GT3 RS 4.0: 2.0 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 (991)GT3 RS 4.0
352 hp/t
263 kW/t
2.8 kg/hp
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
290 hp/t
216 kW/t
3.5 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (991)GT3 RS 4.0
500 hp
373 kW
3.3 s
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
485 hp
362 kW
3.1 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 (991)GT3 RS 4.0
Power
500 hp
373 kW
0-100 km/h3.3 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Doors/seats
2 doors
2 seats
Trunk
125 L
4.4 cu ft
Length
4,545 mm
178.9 in
Height
1,291 mm
50.8 in
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
Power
485 hp
362 kW
0-100 km/h3.1 s
Top speed
312 km/h
194 mph
Doors/seats
2 doors
4 seats
Trunk
135 L
4.8 cu ft
Length
4,553 mm
179.3 in
Height-

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 (991)GT3 RS 4.0
Power
500 hp
373 kW
0-100 km/h3.3 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
Power
485 hp
362 kW
0-100 km/h3.1 s
Top speed
312 km/h
194 mph
10.7 L/100 km
22.0 mpg US
26.4 mpg UK

Porsche 911 Cabriolet (992) Facelift 2024 Carrera GTS 3.6 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 (991)GT3 RS 4.0
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
3.3 s
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
10.7 L/100 km
22.0 mpg US
26.4 mpg UK
3.1 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 (991)GT3 RS 4.0
352 hp/t
263 kW/t
2.8 kg/hp
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
290 hp/t
216 kW/t
3.5 kg/hp
10.7 L/100 km
22.0 mpg US
26.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991)GT3 RS 4.0Porsche911 Cabriolet (992)Facelift 2024Carrera GTS 3.6
Power
500 hp
373 kW
485 hp
362 kW
Torque
460 Nm
339 lb-ft
570 Nm
420 lb-ft
Acceleration
3.3 s
3.1 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
312 km/h
194 mph
Lightness
1,420 kg
3,131 lb
1,675 kg
3,693 lb
Fuel consumption
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
10.7 L/100 km
22.0 mpg US
26.4 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
125 L
4.4 cu ft
Length
4,545 mm
178.9 in
Height
1,291 mm
50.8 in
Doors/seats
2 doors
4 seats
Trunk
135 L
4.8 cu ft
Length
4,553 mm
179.3 in
Height-
Range score
504 km
313 mi
-
CO2 score
296 g/km
-
Trunk score
125 L
4.4 cu ft
135 L
4.8 cu ft
Power-to-weight score
352 hp/t
263 kW/t
2.8 kg/hp
290 hp/t
216 kW/t
3.5 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 (991) GT3 RS 4.0Porsche 911 Cabriolet (992) Facelift 2024 Carrera GTS 3.6
Consumption12.7 L/100 km18.5 mpg US22.2 mpg UK10.7 L/100 km22 mpg US26.4 mpg UK
Cost / 100 km22.22 LC100 km18.72 LC100 km
Cost / 100 mi35.77 LC100 mi30.13 LC100 mi
Annual fuel used1,905 L503 US gal419 UK gal1,605 L424 US gal353 UK gal
Annual fuel cost3,334 LC/year2,809 LC/year

Head-to-head comparisons

Porsche 911 (991) GT3 RS 4.0

  • Has 15 hp more
  • Is 255 kg lighter
  • Has 8 km/h (5 mph) higher top speed
  • Has 63 hp/t better power-to-weight

Pros

  • Highest top speed
  • Most powerful
  • Lightest
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Smallest trunk

Porsche 911 Cabriolet (992) Facelift 2024 Carrera GTS 3.6

  • Has 110 Nm more
  • Is 0.2 s quicker from 0-100 km/h
  • Uses 2.0 L/100 km less fuel
  • Has 10 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest torque
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (991) GT3 RS 4.0
Porsche 911 Cabriolet (992) Carrera GTS 3.6
Compare selected cars
2 vehicles selected

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