Car comparison

Porsche 911 (997) · Facelift 2008 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 (997) · Facelift 2008

Turbo 3.8

500 hp3800 ccGasolineAWDManualTurbochargedCoupe2009-2011
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 (997) Facelift 2008 Turbo 3.8

  • Fastest top speed
    312 km/h
    194 mph
  • Highest torque
    650 Nm
    479 lb-ft
  • Lowest combined fuel consumption
    11.6 L/100 km
    20.3 mpg US
    24.4 mpg UK
  • Lowest city consumption
    16.5 L/100 km
    14.3 mpg US
    17.1 mpg UK
  • Lowest highway consumption
    8.3 L/100 km
    28.3 mpg US
    34.0 mpg UK
  • Best estimated range
    578 km
    359 mi
  • Best overall score
    78/100
  • Best performance score
    90/100
  • Best economy score
    76/100
  • Best practicality score
    51/100

Porsche 911 (992) GT3 RS 4.0

  • Quickest 0-100 km/h
    3.2 s
  • Most powerful
    525 hp
    391 kW
  • Lightest
    1,450 kg
    3,197 lb
  • Best power-to-weight
    362 hp/t
    270 kW/t
    2.8 kg/hp

Specification comparison

Specification comparison
ModelPorsche911 (997)Facelift 2008Turbo 3.8Porsche911 (992)GT3 RS 4.0
Power
500hp373kW
525hp391kW
Torque
650Nm479lb-ft
465Nm343lb-ft
Curb weight
1,570kg3,461lb
1,450kg3,197lb
Gross weight
1,935kg4,266lb
1,795kg3,957lb
Top speed
312 km/h
194 mph
296 km/h
184 mph
To 99% top speed
53.6s99% target: 309 km/h / 192 mph
Calculated
56.8s99% target: 293 km/h / 182 mph
Calculated
0-100 km/h
3.7s
3.2s
0-200 km/h
10.6s
Calculated
10.6s
0-60 mph
3.5s
Calculated
3.0s
Calculated
Fuel consumption
11.6L/100 km20.3mpg US24.4mpg UK
12.7L/100 km18.5mpg US22.2mpg UK
Fuel consumption city
16.5L/100 km14.3mpg US17.1mpg UK
17.6L/100 km13.4mpg US16.1mpg UK
Fuel consumption highway
8.3L/100 km28.3mpg US34.0mpg UK
9.8L/100 km24mpg US28.8mpg UK
Quarter mile
11.4s
Calculated
11.1s
Calculated
Power-to-weight
318hp/t237kW/t144hp/1000 lb
Calculated
362hp/t270kW/t164hp/1000 lb
Calculated
Torque-to-weight
414Nm/t277lb-ft/ton
Calculated
321Nm/t215lb-ft/ton
Calculated
Estimated range
578km359mi
Calculated
504km313mi
Calculated
Displacement
3,800cc232cu in
3,996cc244cu in
Length
4,450mm175in
4,572mm180in
Width
1,852mm73in
1,900mm75in
Height
1,300mm51in
1,322mm52in
Wheelbase
2,350mm93in
2,457mm97in
Ground clearance-
100mm4in
Max trunk volume
105L
-
Doors
2
2
Seats
4
2
Fuel tank
67L
64L
CO2 emissions
272g/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 Turbo 3.8Porsche 911 (992) GT3 RS 4.0PowerTorque
  • Porsche 911 (997) Facelift 2008 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 (997)Facelift 2008Turbo 3.86,000-6,500 rpm1,950-5,000 rpm6,750 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 (997)Facelift 2008Turbo 3.8Porsche911 (992)GT3 RS 4.0
Acceleration checkpoints
0-60 mph
0-97 km/h
3.5 s
3.0 s
0-100 km/h
0-62 mph
3.7 s
3.2 s
0-200 km/h
0-124 mph
10.6 s
10.6 s
Top speed
312 km/h
194 mph
296 km/h
184 mph
Drag race simulation
60 ft
18 m
2.0 s
1.8 s
330 ft
101 m
5.1 s
4.7 s
1/8 mile
201 m
7.6 s
7.2 s
1000 ft
305 m
9.7 s
9.3 s
1/4 mile
402 m
11.4 s
11.1 s
Trap speed
1/4 mile
402 m
208 km/h
129 mph
204 km/h
127 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 (997)Facelift 2008Turbo 3.8
500 hp
373 kW
Porsche911 (992)GT3 RS 4.0
525 hp
391 kW

Porsche 911 (992) GT3 RS 4.0 has 25 hp more than Porsche 911 (997) Facelift 2008 Turbo 3.8.

The biggest power difference is between Porsche 911 (997) Facelift 2008 Turbo 3.8 and Porsche 911 (992) GT3 RS 4.0: 25 hp (19 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 (997)Facelift 2008Turbo 3.8
650 Nm
479 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 (997)Facelift 2008Turbo 3.8
1,570 kg
3,461 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 (997)Facelift 2008Turbo 3.8
312 km/h
194 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 (997)Facelift 2008Turbo 3.83.7 s
Porsche911 (992)GT3 RS 4.03.2 s

The biggest 0-100 km/h difference is between Porsche 911 (992) GT3 RS 4.0 and Porsche 911 (997) Facelift 2008 Turbo 3.8: 0.5 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 2008Turbo 3.8
11.6 L/100 km
20.3 mpg US
24.4 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 (997) Facelift 2008 Turbo 3.8 and Porsche 911 (992) GT3 RS 4.0: 1.1 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 2008Turbo 3.8
318 hp/t
237 kW/t
3.1 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 (997)Facelift 2008Turbo 3.8
578 km
359 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 (997)Facelift 2008Turbo 3.8
500 hp
373 kW
3.7 s
312 km/h
194 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 (997)Facelift 2008Turbo 3.8
Power
500 hp
373 kW
0-100 km/h3.7 s
Top speed
312 km/h
194 mph
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 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 (997)Facelift 2008Turbo 3.8
Power
500 hp
373 kW
0-100 km/h3.7 s
Top speed
312 km/h
194 mph
11.6 L/100 km
20.3 mpg US
24.4 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 (997) Facelift 2008 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 (997)Facelift 2008Turbo 3.8
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
3.7 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 (997)Facelift 2008Turbo 3.8
318 hp/t
237 kW/t
3.1 kg/hp
11.6 L/100 km
20.3 mpg US
24.4 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 (997)Facelift 2008Turbo 3.8Porsche911 (992)GT3 RS 4.0
Power
500 hp
373 kW
525 hp
391 kW
Torque
650 Nm
479 lb-ft
465 Nm
343 lb-ft
Acceleration
3.7 s
3.2 s
Top speed
312 km/h
194 mph
296 km/h
184 mph
Lightness
1,570 kg
3,461 lb
1,450 kg
3,197 lb
Fuel consumption
11.6 L/100 km
20.3 mpg US
24.4 mpg UK
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 in
Doors/seats
2 doors
2 seats
Trunk-
Length
4,572 mm
180.0 in
Height
1,322 mm
52.0 in
Range score
578 km
359 mi
504 km
313 mi
CO2 score
272 g/km
-
Trunk score
105 L
3.7 cu ft
-
Power-to-weight score
318 hp/t
237 kW/t
3.1 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 (997) Facelift 2008 Turbo 3.8Porsche 911 (992) GT3 RS 4.0
Consumption11.6 L/100 km20.3 mpg US24.4 mpg UK12.7 L/100 km18.5 mpg US22.2 mpg UK
Cost / 100 km20.30 LC100 km22.22 LC100 km
Cost / 100 mi32.67 LC100 mi35.77 LC100 mi
Annual fuel used1,740 L460 US gal383 UK gal1,905 L503 US gal419 UK gal
Annual fuel cost3,045 LC/year3,334 LC/year

Head-to-head comparisons

Porsche 911 (997) Facelift 2008 Turbo 3.8

  • Has 185 Nm more
  • Has 16 km/h (10 mph) higher top speed
  • Uses 1.1 L/100 km less fuel
  • Has 74 km (46 mi) more estimated range

Pros

  • Highest top speed
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest

Porsche 911 (992) GT3 RS 4.0

  • Has 25 hp more
  • Is 120 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Has 44 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (997) Turbo 3.8
Porsche 911 (992) GT3 RS 4.0
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2 vehicles selected

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Porsche 911 (997) · Facelift 2008 Turbo 3.8 vs Porsche 911 (992) GT3 RS 4.0 - car comparison - FastVsFaster