Car comparison

Porsche 911 (991) GT3 RS 4.0vsPorsche 911 Targa (992) 4 GTS 3.0

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 Targa (992)

4 GTS 3.0

480 hp2981 ccGasolineAWDDual-clutchTwin-turbo2021-2024

Comparison overview

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

Best choices

Porsche 911 Targa (992) 4 GTS 3.0

  • Highest torque
    570 Nm
    420 lb-ft
  • Lowest combined fuel consumption
    9.9 L/100 km
    23.8 mpg US
    28.5 mpg UK
  • Lowest city consumption
    13.7 L/100 km
    17.2 mpg US
    20.6 mpg UK
  • Lowest highway consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Best estimated range
    677 km
    421 mi
  • Largest trunk
    163 L
  • Best overall score
    75/100
  • Best economy score
    80/100
  • Best practicality score
    47/100

Porsche 911 (991) GT3 RS 4.0

  • Quickest 0-100 km/h
    3.3 s
  • 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 Targa (992)4 GTS 3.0
Power
500hp373kW
480hp358kW
Torque
460Nm339lb-ft
570Nm420lb-ft
Curb weight
1,420kg3,131lb
1,685kg3,715lb
Gross weight
1,720kg3,792lb
2,085kg4,597lb
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Calculated
Unrestricted
315 km/h196 mph
Restricted
307 km/h191 mph
Calculated
To 99% top speed
47.9s99% target: 317 km/h / 197 mph
Calculated
91.8s99% target: 312 km/h / 194 mph
Calculated
0-100 km/h
3.3s
3.5s
0-200 km/h
9.2s
Calculated
12.5s
0-60 mph
3.2s
Calculated
3.3s
Calculated
Fuel consumption
12.7L/100 km18.5mpg US22.2mpg UK
9.9L/100 km23.8mpg US28.5mpg UK
Fuel consumption city
19.2L/100 km12.3mpg US14.7mpg UK
13.7L/100 km17.2mpg US20.6mpg UK
Fuel consumption highway
8.9L/100 km26.4mpg US31.7mpg UK
7.7L/100 km30.5mpg US36.7mpg UK
Quarter mile
10.9s
Calculated
11.6s
Calculated
Power-to-weight
352hp/t263kW/t160hp/1000 lb
Calculated
285hp/t212kW/t129hp/1000 lb
Calculated
Torque-to-weight
324Nm/t217lb-ft/ton
Calculated
338Nm/t226lb-ft/ton
Calculated
Estimated range
504km313mi
Calculated
677km421mi
Calculated
Displacement
3,996cc244cu in
2,981cc182cu in
Length
4,545mm179in
4,533mm178in
Width
1,880mm74in
1,852mm73in
Height
1,291mm51in
1,299mm51in
Wheelbase
2,457mm97in
2,450mm96in
Front track
1,587mm62in
-
Rear track
1,557mm61in
-
Trunk volume
125L
163L
Max trunk volume
260L
-
Doors
2
2
Seats
2
4
Fuel tank
64L
67L
CO2 emissions
296g/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 (991) GT3 RS 4.0Porsche 911 Targa (992) 4 GTS 3.0PowerTorque
  • Porsche 911 (991) GT3 RS 4.0: Power / Torque
  • Porsche 911 Targa (992) 4 GTS 3.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (991)GT3 RS 4.08,250 rpm6,250 rpm8,500 rpm
Porsche911 Targa (992)4 GTS 3.06,500 rpm2,300-5,000 rpm7,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (991)GT3 RS 4.0Porsche911 Targa (992)4 GTS 3.0
Acceleration checkpoints
0-60 mph
0-97 km/h
3.2 s
3.3 s
0-100 km/h
0-62 mph
3.3 s
3.5 s
0-200 km/h
0-124 mph
9.2 s
12.5 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Likely limited
Unrestricted
315 km/h196 mph
Restricted
307 km/h191 mph
Likely limited
Drag race simulation
60 ft
18 m
1.9 s
1.8 s
330 ft
101 m
4.9 s
4.9 s
1/8 mile
201 m
7.2 s
7.5 s
1000 ft
305 m
9.2 s
9.7 s
1/4 mile
402 m
10.9 s
11.6 s
Trap speed
1/4 mile
402 m
218 km/h
136 mph
193 km/h
120 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 Targa (992)4 GTS 3.0
480 hp
358 kW

Porsche 911 (991) GT3 RS 4.0 has 20 hp more than Porsche 911 Targa (992) 4 GTS 3.0.

The biggest power difference is between Porsche 911 Targa (992) 4 GTS 3.0 and Porsche 911 (991) GT3 RS 4.0: 20 hp (15 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 Targa (992)4 GTS 3.0
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 Targa (992)4 GTS 3.0
1,685 kg
3,715 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 Targa (992)4 GTS 3.0
Unrestricted
315 km/h196 mph
Restricted
307 km/h191 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 Targa (992)4 GTS 3.03.5 s

The biggest 0-100 km/h difference is between Porsche 911 (991) GT3 RS 4.0 and Porsche 911 Targa (992) 4 GTS 3.0: 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 Targa (992)4 GTS 3.0
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

The biggest fuel consumption difference is between Porsche 911 Targa (992) 4 GTS 3.0 and Porsche 911 (991) GT3 RS 4.0: 2.8 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 Targa (992)4 GTS 3.0
285 hp/t
212 kW/t
3.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 (991)GT3 RS 4.0
504 km
313 mi
Porsche911 Targa (992)4 GTS 3.0
677 km
421 mi

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 Targa (992)4 GTS 3.0
480 hp
358 kW
3.5 s
Unrestricted
315 km/h196 mph
Restricted
307 km/h191 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 Targa (992)4 GTS 3.0
Power
480 hp
358 kW
0-100 km/h3.5 s
Top speed
Unrestricted
315 km/h196 mph
Restricted
307 km/h191 mph
Doors/seats
2 doors
4 seats
Trunk
163 L
5.8 cu ft
Length
4,533 mm
178.5 in
Height
1,299 mm
51.1 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 (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 Targa (992)4 GTS 3.0
Power
480 hp
358 kW
0-100 km/h3.5 s
Top speed
Unrestricted
315 km/h196 mph
Restricted
307 km/h191 mph
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

Porsche 911 Targa (992) 4 GTS 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
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 Targa (992)4 GTS 3.0
9.9 L/100 km
23.8 mpg US
28.5 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
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 Targa (992)4 GTS 3.0
285 hp/t
212 kW/t
3.5 kg/hp
9.9 L/100 km
23.8 mpg US
28.5 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991)GT3 RS 4.0Porsche911 Targa (992)4 GTS 3.0
Power
500 hp
373 kW
480 hp
358 kW
Torque
460 Nm
339 lb-ft
570 Nm
420 lb-ft
Acceleration
3.3 s
3.5 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Unrestricted
315 km/h196 mph
Restricted
307 km/h191 mph
Lightness
1,420 kg
3,131 lb
1,685 kg
3,715 lb
Fuel consumption
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
9.9 L/100 km
23.8 mpg US
28.5 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
163 L
5.8 cu ft
Length
4,533 mm
178.5 in
Height
1,299 mm
51.1 in
Range score
504 km
313 mi
677 km
421 mi
CO2 score
296 g/km
-
Trunk score
125 L
4.4 cu ft
163 L
5.8 cu ft
Power-to-weight score
352 hp/t
263 kW/t
2.8 kg/hp
285 hp/t
212 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 Targa (992) 4 GTS 3.0
Consumption12.7 L/100 km18.5 mpg US22.2 mpg UK9.9 L/100 km23.8 mpg US28.5 mpg UK
Cost / 100 km22.22 LC100 km17.33 LC100 km
Cost / 100 mi35.77 LC100 mi27.88 LC100 mi
Annual fuel used1,905 L503 US gal419 UK gal1,485 L392 US gal327 UK gal
Annual fuel cost3,334 LC/year2,599 LC/year

Head-to-head comparisons

Porsche 911 (991) GT3 RS 4.0

  • Has 20 hp more
  • Is 265 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Has 67 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Lightest
  • Best power-to-weight ratio

Cons

  • Highest combined fuel consumption
  • Smallest trunk

Porsche 911 Targa (992) 4 GTS 3.0

  • Has 110 Nm more
  • Uses 2.8 L/100 km less fuel
  • Has 173 km (107 mi) more estimated range
  • Has 38 L more trunk volume

Pros

  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • 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 Targa (992) 4 GTS 3.0
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Porsche 911 (991) GT3 RS 4.0 vs Porsche 911 Targa (992) 4 GTS 3.0 - car comparison - FastVsFaster