Car comparison

Porsche 911 (997) · Facelift 2008 GT3 RS 3.8vsPorsche 911 (992) Carrera 4S 3.0

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

New comparison

Porsche 911 (997) · Facelift 2008

GT3 RS 3.8

450 hp3797 ccGasolineRWDManualNaturally aspiratedCoupe2009-2011
VS

Porsche 911 (992)

Carrera 4S 3.0

450 hp2981 ccGasolineAWDDual-clutchTwin-turboCoupe2018-2024

Comparison overview

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

Best choices

Porsche 911 (992) Carrera 4S 3.0

  • Quickest 0-100 km/h
    3.6 s
  • Highest torque
    530 Nm
    391 lb-ft
  • Lowest combined fuel consumption
    9.0 L/100 km
    26.1 mpg US
    31.4 mpg UK
  • Lowest city consumption
    11.1 L/100 km
    21.2 mpg US
    25.4 mpg UK
  • Lowest highway consumption
    7.8 L/100 km
    30.2 mpg US
    36.2 mpg UK
  • Lowest CO2 emissions
    206 g/km
  • Best estimated range
    744 km
    463 mi
  • Largest trunk
    132 L
  • Best overall score
    71/100
  • Best performance score
    85/100
  • Best economy score
    83/100
  • Best practicality score
    41/100

Specification comparison

Specification comparison
ModelPorsche911 (997)Facelift 2008GT3 RS 3.8Porsche911 (992)Carrera 4S 3.0
Power
450hp336kW
450hp336kW
Torque
430Nm317lb-ft
530Nm391lb-ft
Curb weight
1,370kg3,020lb
1,565kg3,450lb
Gross weight
1,680kg3,704lb
2,010kg4,431lb
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Calculated
306 km/h
190 mph
To 99% top speed
58.5s99% target: 317 km/h / 197 mph
Calculated
83.1s99% target: 303 km/h / 188 mph
Calculated
0-100 km/h
4.0s
3.6s
0-200 km/h
11.2s
Calculated
12.7s
0-60 mph
3.8s
Calculated
3.4s
Calculated
Fuel consumption
13.2L/100 km17.8mpg US21.4mpg UK
9L/100 km26.1mpg US31.4mpg UK
Fuel consumption city
19.4L/100 km12.1mpg US14.6mpg UK
11.1L/100 km21.2mpg US25.4mpg UK
Fuel consumption highway
9.6L/100 km24.5mpg US29.4mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Quarter mile
11.7s
Calculated
11.7s
Calculated
Power-to-weight
328hp/t245kW/t149hp/1000 lb
Calculated
288hp/t214kW/t130hp/1000 lb
Calculated
Torque-to-weight
314Nm/t210lb-ft/ton
Calculated
339Nm/t227lb-ft/ton
Calculated
Estimated range
508km315mi
Calculated
744km463mi
Calculated
Displacement
3,797cc232cu in
2,981cc182cu in
Length
4,460mm176in
4,519mm178in
Width
1,808mm71in
1,852mm73in
Height
1,280mm50in
1,300mm51in
Wheelbase
2,355mm93in
2,450mm96in
Front track-
1,589mm63in
Rear track-
1,557mm61in
Trunk volume-
132L
Max trunk volume
105L
-
Doors
2
2
Seats
2
4
Fuel tank
67L
67L
CO2 emissions
314g/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 (997) Facelift 2008 GT3 RS 3.8Porsche 911 (992) Carrera 4S 3.0PowerTorque
  • Porsche 911 (997) Facelift 2008 GT3 RS 3.8: Power / Torque
  • Porsche 911 (992) Carrera 4S 3.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (997)Facelift 2008GT3 RS 3.87,900 rpm6,750 rpm8,150 rpm
Porsche911 (992)Carrera 4S 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 (997)Facelift 2008GT3 RS 3.8Porsche911 (992)Carrera 4S 3.0
Acceleration checkpoints
0-60 mph
0-97 km/h
3.8 s
3.4 s
0-100 km/h
0-62 mph
4.0 s
3.6 s
0-200 km/h
0-124 mph
11.2 s
12.7 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Likely limited
306 km/h
190 mph
Drag race simulation
60 ft
18 m
2.1 s
1.8 s
330 ft
101 m
5.3 s
4.9 s
1/8 mile
201 m
7.8 s
7.5 s
1000 ft
305 m
10.0 s
9.8 s
1/4 mile
402 m
11.7 s
11.7 s
Trap speed
1/4 mile
402 m
205 km/h
128 mph
193 km/h
120 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 (997)Facelift 2008GT3 RS 3.8
450 hp
336 kW
Porsche911 (992)Carrera 4S 3.0
450 hp
336 kW

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (997)Facelift 2008GT3 RS 3.8
430 Nm
317 lb-ft
Porsche911 (992)Carrera 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
VehicleValue
Porsche911 (997)Facelift 2008GT3 RS 3.8
1,370 kg
3,020 lb
Porsche911 (992)Carrera 4S 3.0
1,565 kg
3,450 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 (997)Facelift 2008GT3 RS 3.8
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Porsche911 (992)Carrera 4S 3.0
306 km/h
190 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 (997)Facelift 2008GT3 RS 3.84.0 s
Porsche911 (992)Carrera 4S 3.03.6 s

The biggest 0-100 km/h difference is between Porsche 911 (992) Carrera 4S 3.0 and Porsche 911 (997) Facelift 2008 GT3 RS 3.8: 0.4 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 (997)Facelift 2008GT3 RS 3.8
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
Porsche911 (992)Carrera 4S 3.0
9.0 L/100 km
26.1 mpg US
31.4 mpg UK

The biggest fuel consumption difference is between Porsche 911 (992) Carrera 4S 3.0 and Porsche 911 (997) Facelift 2008 GT3 RS 3.8: 4.2 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 (997)Facelift 2008GT3 RS 3.8
328 hp/t
245 kW/t
3.0 kg/hp
Porsche911 (992)Carrera 4S 3.0
288 hp/t
214 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 (997)Facelift 2008GT3 RS 3.8
508 km
315 mi
Porsche911 (992)Carrera 4S 3.0
744 km
463 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (997)Facelift 2008GT3 RS 3.8
450 hp
336 kW
4.0 s
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Porsche911 (992)Carrera 4S 3.0
450 hp
336 kW
3.6 s
306 km/h
190 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 (997)Facelift 2008GT3 RS 3.8
Power
450 hp
336 kW
0-100 km/h4.0 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Doors/seats
2 doors
2 seats
Trunk
105 L
3.7 cu ft
Length
4,460 mm
175.6 in
Height
1,280 mm
50.4 in
Porsche911 (992)Carrera 4S 3.0
Power
450 hp
336 kW
0-100 km/h3.6 s
Top speed
306 km/h
190 mph
Doors/seats
2 doors
4 seats
Trunk
132 L
4.7 cu ft
Length
4,519 mm
177.9 in
Height
1,300 mm
51.2 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 (997)Facelift 2008GT3 RS 3.8
Power
450 hp
336 kW
0-100 km/h4.0 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
Porsche911 (992)Carrera 4S 3.0
Power
450 hp
336 kW
0-100 km/h3.6 s
Top speed
306 km/h
190 mph
9.0 L/100 km
26.1 mpg US
31.4 mpg UK

Porsche 911 (992) 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
VehicleFuel consumption, L/100 km0-100 km/h, s
Porsche911 (997)Facelift 2008GT3 RS 3.8
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
4.0 s
Porsche911 (992)Carrera 4S 3.0
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
3.6 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 (997)Facelift 2008GT3 RS 3.8
328 hp/t
245 kW/t
3.0 kg/hp
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
Porsche911 (992)Carrera 4S 3.0
288 hp/t
214 kW/t
3.5 kg/hp
9.0 L/100 km
26.1 mpg US
31.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (997)Facelift 2008GT3 RS 3.8Porsche911 (992)Carrera 4S 3.0
Power
450 hp
336 kW
450 hp
336 kW
Torque
430 Nm
317 lb-ft
530 Nm
391 lb-ft
Acceleration
4.0 s
3.6 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
306 km/h
190 mph
Lightness
1,370 kg
3,020 lb
1,565 kg
3,450 lb
Fuel consumption
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
105 L
3.7 cu ft
Length
4,460 mm
175.6 in
Height
1,280 mm
50.4 in
Doors/seats
2 doors
4 seats
Trunk
132 L
4.7 cu ft
Length
4,519 mm
177.9 in
Height
1,300 mm
51.2 in
Range score
508 km
315 mi
744 km
463 mi
CO2 score
314 g/km
206 g/km
Trunk score
105 L
3.7 cu ft
132 L
4.7 cu ft
Power-to-weight score
328 hp/t
245 kW/t
3.0 kg/hp
288 hp/t
214 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 (997) Facelift 2008 GT3 RS 3.8Porsche 911 (992) Carrera 4S 3.0
Consumption13.2 L/100 km17.8 mpg US21.4 mpg UK9 L/100 km26.1 mpg US31.4 mpg UK
Cost / 100 km23.10 LC100 km15.75 LC100 km
Cost / 100 mi37.18 LC100 mi25.35 LC100 mi
Annual fuel used1,980 L523 US gal436 UK gal1,350 L357 US gal297 UK gal
Annual fuel cost3,465 LC/year2,363 LC/year

Head-to-head comparisons

Porsche 911 (997) Facelift 2008 GT3 RS 3.8

  • Is 195 kg lighter
  • Has 14 km/h (9 mph) higher top speed
  • Has 41 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
  • Highest CO2 emissions

Porsche 911 (992) Carrera 4S 3.0

  • Has 100 Nm more
  • Is 0.4 s quicker from 0-100 km/h
  • Uses 4.2 L/100 km less fuel
  • Has 237 km (147 mi) more estimated range
  • Has 27 L more trunk volume
  • Emits 108 g/km less CO2

Pros

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

Cons

  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (997) GT3 RS 3.8
Porsche 911 (992) Carrera 4S 3.0
Compare selected cars
2 vehicles selected

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