Car comparison

Porsche 911 Cabriolet (992) Turbo 3.8vsPorsche 911 (992) GT3 RS 4.0

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

New comparison

Porsche 911 Cabriolet (992)

Turbo 3.8

580 hp3745 ccGasolineAWDDual-clutchTwin-turboCabriolet / convertible2020-2024
VS

Porsche 911 (992)

GT3 RS 4.0

525 hp3996 ccGasolineRWDDual-clutchNaturally aspiratedCoupe2022-2024

Comparison overview

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

Best choices

Porsche 911 Cabriolet (992) Turbo 3.8

  • Quickest 0-100 km/h
    2.9 s
  • Fastest top speed
    330 km/h
    205 mph Unrestricted
    320 km/h
    199 mph Restricted
  • Most powerful
    580 hp
    433 kW
  • Highest torque
    750 Nm
    553 lb-ft
  • Lowest combined fuel consumption
    11.3 L/100 km
    20.8 mpg US
    25.0 mpg UK
  • Lowest city consumption
    15.2 L/100 km
    15.5 mpg US
    18.6 mpg UK
  • Lowest highway consumption
    8.9 L/100 km
    26.4 mpg US
    31.7 mpg UK
  • Best estimated range
    593 km
    368 mi
  • Best overall score
    76/100
  • Best performance score
    94/100
  • Best economy score
    77/100
  • Best practicality score
    39/100

Specification comparison

Specification comparison
ModelPorsche911 Cabriolet (992)Turbo 3.8Porsche911 (992)GT3 RS 4.0
Power
580hp433kW
525hp391kW
Torque
750Nm553lb-ft
465Nm343lb-ft
Curb weight
1,710kg3,770lb
1,450kg3,197lb
Gross weight
2,100kg4,630lb
1,795kg3,957lb
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Calculated
296 km/h
184 mph
To 99% top speed
82.8s99% target: 327 km/h / 203 mph
Calculated
56.8s99% target: 293 km/h / 182 mph
Calculated
0-100 km/h
2.9s
3.2s
0-200 km/h
10.1s
10.6s
0-60 mph
2.7s
Calculated
3.0s
Calculated
Fuel consumption
11.3L/100 km20.8mpg US25.0mpg UK
12.7L/100 km18.5mpg US22.2mpg UK
Fuel consumption city
15.2L/100 km15.5mpg US18.6mpg UK
17.6L/100 km13.4mpg US16.1mpg UK
Fuel consumption highway
8.9L/100 km26.4mpg US31.7mpg UK
9.8L/100 km24mpg US28.8mpg UK
Quarter mile
10.8s
Calculated
11.1s
Calculated
Power-to-weight
339hp/t253kW/t154hp/1000 lb
Calculated
362hp/t270kW/t164hp/1000 lb
Calculated
Torque-to-weight
439Nm/t293lb-ft/ton
Calculated
321Nm/t215lb-ft/ton
Calculated
Estimated range
593km368mi
Calculated
504km313mi
Calculated
Displacement
3,745cc229cu in
3,996cc244cu in
Length
4,535mm179in
4,572mm180in
Width
1,900mm75in
1,900mm75in
Height
1,302mm51in
1,322mm52in
Wheelbase
2,450mm96in
2,457mm97in
Front track
1,583mm62in
-
Rear track
1,600mm63in
-
Ground clearance-
100mm4in
Trunk volume
163L
-
Doors
2
2
Seats
4
2
Fuel tank
67L
64L

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 (992) Turbo 3.8Porsche 911 (992) GT3 RS 4.0PowerTorque
  • Porsche 911 Cabriolet (992) Turbo 3.8: Power / Torque
  • Porsche 911 (992) GT3 RS 4.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 Cabriolet (992)Turbo 3.86,500 rpm2,250-4,500 rpm7,200 rpm
Porsche911 (992)GT3 RS 4.08,500 rpm6,300 rpm9,000 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 Cabriolet (992)Turbo 3.8Porsche911 (992)GT3 RS 4.0
Acceleration checkpoints
0-60 mph
0-97 km/h
2.7 s
3.0 s
0-100 km/h
0-62 mph
2.9 s
3.2 s
0-200 km/h
0-124 mph
10.1 s
10.6 s
0-200 mph
0-322 km/h
62.1 s
-
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Likely limited
296 km/h
184 mph
Drag race simulation
60 ft
18 m
1.6 s
1.8 s
330 ft
101 m
4.5 s
4.7 s
1/8 mile
201 m
6.9 s
7.2 s
1000 ft
305 m
9.0 s
9.3 s
1/4 mile
402 m
10.8 s
11.1 s
Trap speed
1/4 mile
402 m
206 km/h
128 mph
204 km/h
127 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo 3.8
580 hp
433 kW
Porsche911 (992)GT3 RS 4.0
525 hp
391 kW

Porsche 911 Cabriolet (992) Turbo 3.8 has 55 hp more than Porsche 911 (992) GT3 RS 4.0.

The biggest power difference is between Porsche 911 (992) GT3 RS 4.0 and Porsche 911 Cabriolet (992) Turbo 3.8: 55 hp (41 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo 3.8
750 Nm
553 lb-ft
Porsche911 (992)GT3 RS 4.0
465 Nm
343 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo 3.8
1,710 kg
3,770 lb
Porsche911 (992)GT3 RS 4.0
1,450 kg
3,197 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 (992)Turbo 3.8
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Porsche911 (992)GT3 RS 4.0
296 km/h
184 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo 3.82.9 s
Porsche911 (992)GT3 RS 4.03.2 s

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (992) Turbo 3.8 and Porsche 911 (992) GT3 RS 4.0: 0.3 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 (992)Turbo 3.8
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
Porsche911 (992)GT3 RS 4.0
12.7 L/100 km
18.5 mpg US
22.2 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (992) Turbo 3.8 and Porsche 911 (992) GT3 RS 4.0: 1.4 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 (992)Turbo 3.8
339 hp/t
253 kW/t
2.9 kg/hp
Porsche911 (992)GT3 RS 4.0
362 hp/t
270 kW/t
2.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo 3.8
593 km
368 mi
Porsche911 (992)GT3 RS 4.0
504 km
313 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 Cabriolet (992)Turbo 3.8
580 hp
433 kW
2.9 s
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Porsche911 (992)GT3 RS 4.0
525 hp
391 kW
3.2 s
296 km/h
184 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 (992)Turbo 3.8
Power
580 hp
433 kW
0-100 km/h2.9 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Doors/seats
2 doors
4 seats
Trunk
163 L
5.8 cu ft
Length
4,535 mm
178.5 in
Height
1,302 mm
51.3 in
Porsche911 (992)GT3 RS 4.0
Power
525 hp
391 kW
0-100 km/h3.2 s
Top speed
296 km/h
184 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,572 mm
180.0 in
Height
1,322 mm
52.0 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 (992)Turbo 3.8
Power
580 hp
433 kW
0-100 km/h2.9 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
Porsche911 (992)GT3 RS 4.0
Power
525 hp
391 kW
0-100 km/h3.2 s
Top speed
296 km/h
184 mph
12.7 L/100 km
18.5 mpg US
22.2 mpg UK

Porsche 911 Cabriolet (992) 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 (992)Turbo 3.8
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
2.9 s
Porsche911 (992)GT3 RS 4.0
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
3.2 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
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Porsche911 Cabriolet (992)Turbo 3.8
339 hp/t
253 kW/t
2.9 kg/hp
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
Porsche911 (992)GT3 RS 4.0
362 hp/t
270 kW/t
2.8 kg/hp
12.7 L/100 km
18.5 mpg US
22.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 Cabriolet (992)Turbo 3.8Porsche911 (992)GT3 RS 4.0
Power
580 hp
433 kW
525 hp
391 kW
Torque
750 Nm
553 lb-ft
465 Nm
343 lb-ft
Acceleration
2.9 s
3.2 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
296 km/h
184 mph
Lightness
1,710 kg
3,770 lb
1,450 kg
3,197 lb
Fuel consumption
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
163 L
5.8 cu ft
Length
4,535 mm
178.5 in
Height
1,302 mm
51.3 in
Doors/seats
2 doors
2 seats
Trunk-
Length
4,572 mm
180.0 in
Height
1,322 mm
52.0 in
Range score
593 km
368 mi
504 km
313 mi
Trunk score
163 L
5.8 cu ft
-
Power-to-weight score
339 hp/t
253 kW/t
2.9 kg/hp
362 hp/t
270 kW/t
2.8 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 (992) Turbo 3.8Porsche 911 (992) GT3 RS 4.0
Consumption11.3 L/100 km20.8 mpg US25 mpg UK12.7 L/100 km18.5 mpg US22.2 mpg UK
Cost / 100 km19.78 LC100 km22.22 LC100 km
Cost / 100 mi31.82 LC100 mi35.77 LC100 mi
Annual fuel used1,695 L448 US gal373 UK gal1,905 L503 US gal419 UK gal
Annual fuel cost2,966 LC/year3,334 LC/year

Head-to-head comparisons

Porsche 911 Cabriolet (992) Turbo 3.8

  • Has 55 hp more
  • Has 285 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Has 34 km/h (21 mph) higher top speed
  • Uses 1.4 L/100 km less fuel
  • Has 89 km (55 mi) more estimated range

Pros

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

Cons

  • Heaviest

Porsche 911 (992) GT3 RS 4.0

  • Is 260 kg lighter
  • Has 23 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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 Cabriolet (992) Turbo 3.8
Porsche 911 (992) GT3 RS 4.0
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