Car comparison

Porsche 911 (997) · Facelift 2008 GT3 RS 3.8vsMaserati GranTurismo I S 4.7

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

Maserati GranTurismo I

S 4.7

440 hpGasolineRWDNaturally aspiratedCoupe2008-2012

Comparison overview

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

Best choices

Porsche 911 (997) Facelift 2008 GT3 RS 3.8

  • Quickest 0-100 km/h
    4.0 s
  • Fastest top speed
    320 km/h
    199 mph Unrestricted
    310 km/h
    193 mph Restricted
  • Most powerful
    450 hp
    336 kW
  • Lightest
    1,370 kg
    3,020 lb
  • Best power-to-weight
    328 hp/t
    245 kW/t
    3.0 kg/hp
  • Lowest combined fuel consumption
    13.2 L/100 km
    17.8 mpg US
    21.4 mpg UK
  • Lowest city consumption
    19.4 L/100 km
    12.1 mpg US
    14.6 mpg UK
  • Lowest highway consumption
    9.6 L/100 km
    24.5 mpg US
    29.4 mpg UK
  • Best overall score
    70/100
  • Best performance score
    84/100
  • Best economy score
    71/100

Specification comparison

Specification comparison
ModelPorsche911 (997)Facelift 2008GT3 RS 3.8MaseratiGranTurismo IS 4.7
Power
450hp336kW
440hp328kW
Torque
430Nm317lb-ft
490Nm361lb-ft
Curb weight
1,370kg3,020lb
1,880kg4,145lb
Gross weight
1,680kg3,704lb
-
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Calculated
295 km/h
183 mph
To 99% top speed
58.5s99% target: 317 km/h / 197 mph
Calculated
83.7s99% target: 292 km/h / 181 mph
Calculated
0-100 km/h
4.0s
5.0s
0-200 km/h
11.2s
Calculated
16.2s
Calculated
0-60 mph
3.8s
Calculated
4.8s
Calculated
Fuel consumption
13.2L/100 km17.8mpg US21.4mpg UK
15.2L/100 km15.4mpg US18.5mpg UK
Fuel consumption city
19.4L/100 km12.1mpg US14.6mpg UK
23.2L/100 km10.1mpg US12.2mpg UK
Fuel consumption highway
9.6L/100 km24.5mpg US29.4mpg UK
10.6L/100 km22.3mpg US26.8mpg UK
Quarter mile
11.7s
Calculated
13.0s
Calculated
Power-to-weight
328hp/t245kW/t149hp/1000 lb
Calculated
234hp/t175kW/t106hp/1000 lb
Calculated
Torque-to-weight
314Nm/t210lb-ft/ton
Calculated
261Nm/t174lb-ft/ton
Calculated
Estimated range
508km315mi
Calculated
565km351mi
Calculated
Displacement
3,797cc232cu in
-
Length
4,460mm176in
4,881mm192in
Width
1,808mm71in
2,056mm81in
Height
1,280mm50in
1,353mm53in
Wheelbase
2,355mm93in
2,942mm116in
Trunk volume-
260L
Max trunk volume
105L
-
Doors
2
2
Seats
2
4
Fuel tank
67L
86L
CO2 emissions
314g/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 3.8Maserati GranTurismo I S 4.7PowerTorque
  • Porsche 911 (997) Facelift 2008 GT3 RS 3.8: Power / Torque
  • Maserati GranTurismo I S 4.7: 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
MaseratiGranTurismo IS 4.77,000 rpm4,750 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (997)Facelift 2008GT3 RS 3.8MaseratiGranTurismo IS 4.7
Acceleration checkpoints
0-60 mph
0-97 km/h
3.8 s
4.8 s
0-100 km/h
0-62 mph
4.0 s
5.0 s
0-200 km/h
0-124 mph
11.2 s
16.2 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Likely limited
295 km/h
183 mph
Drag race simulation
60 ft
18 m
2.1 s
2.2 s
330 ft
101 m
5.3 s
5.7 s
1/8 mile
201 m
7.8 s
8.6 s
1000 ft
305 m
10.0 s
11.0 s
1/4 mile
402 m
11.7 s
13.0 s
Trap speed
1/4 mile
402 m
205 km/h
128 mph
180 km/h
112 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
MaseratiGranTurismo IS 4.7
440 hp
328 kW

Porsche 911 (997) Facelift 2008 GT3 RS 3.8 has 10 hp more than Maserati GranTurismo I S 4.7.

The biggest power difference is between Maserati GranTurismo I S 4.7 and Porsche 911 (997) Facelift 2008 GT3 RS 3.8: 10 hp (7 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
MaseratiGranTurismo IS 4.7
490 Nm
361 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
MaseratiGranTurismo IS 4.7
1,880 kg
4,145 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
MaseratiGranTurismo IS 4.7
295 km/h
183 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
MaseratiGranTurismo IS 4.75.0 s

The biggest 0-100 km/h difference is between Porsche 911 (997) Facelift 2008 GT3 RS 3.8 and Maserati GranTurismo I S 4.7: 1.0 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
MaseratiGranTurismo IS 4.7
15.2 L/100 km
15.4 mpg US
18.5 mpg UK

The biggest fuel consumption difference is between Porsche 911 (997) Facelift 2008 GT3 RS 3.8 and Maserati GranTurismo I S 4.7: 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 (997)Facelift 2008GT3 RS 3.8
328 hp/t
245 kW/t
3.0 kg/hp
MaseratiGranTurismo IS 4.7
234 hp/t
175 kW/t
4.3 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
MaseratiGranTurismo IS 4.7
565 km
351 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
MaseratiGranTurismo IS 4.7
440 hp
328 kW
5.0 s
295 km/h
183 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
MaseratiGranTurismo IS 4.7
Power
440 hp
328 kW
0-100 km/h5.0 s
Top speed
295 km/h
183 mph
Doors/seats
2 doors
4 seats
Trunk
260 L
9.2 cu ft
Length
4,881 mm
192.2 in
Height
1,353 mm
53.3 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
MaseratiGranTurismo IS 4.7
Power
440 hp
328 kW
0-100 km/h5.0 s
Top speed
295 km/h
183 mph
15.2 L/100 km
15.4 mpg US
18.5 mpg UK

Porsche 911 (997) Facelift 2008 GT3 RS 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 2008GT3 RS 3.8
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
4.0 s
MaseratiGranTurismo IS 4.7
15.2 L/100 km
15.4 mpg US
18.5 mpg UK
5.0 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
MaseratiGranTurismo IS 4.7
234 hp/t
175 kW/t
4.3 kg/hp
15.2 L/100 km
15.4 mpg US
18.5 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (997)Facelift 2008GT3 RS 3.8MaseratiGranTurismo IS 4.7
Power
450 hp
336 kW
440 hp
328 kW
Torque
430 Nm
317 lb-ft
490 Nm
361 lb-ft
Acceleration
4.0 s
5.0 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
295 km/h
183 mph
Lightness
1,370 kg
3,020 lb
1,880 kg
4,145 lb
Fuel consumption
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
15.2 L/100 km
15.4 mpg US
18.5 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
260 L
9.2 cu ft
Length
4,881 mm
192.2 in
Height
1,353 mm
53.3 in
Range score
508 km
315 mi
565 km
351 mi
CO2 score
314 g/km
-
Trunk score
105 L
3.7 cu ft
260 L
9.2 cu ft
Power-to-weight score
328 hp/t
245 kW/t
3.0 kg/hp
234 hp/t
175 kW/t
4.3 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 3.8Maserati GranTurismo I S 4.7
Consumption13.2 L/100 km17.8 mpg US21.4 mpg UK15.2 L/100 km15.4 mpg US18.5 mpg UK
Cost / 100 km23.10 LC100 km26.65 LC100 km
Cost / 100 mi37.18 LC100 mi42.89 LC100 mi
Annual fuel used1,980 L523 US gal436 UK gal2,285 L604 US gal503 UK gal
Annual fuel cost3,465 LC/year3,998 LC/year

Head-to-head comparisons

Porsche 911 (997) Facelift 2008 GT3 RS 3.8

  • Has 10 hp more
  • Is 510 kg lighter
  • Is 1.0 s quicker from 0-100 km/h
  • Has 25 km/h (16 mph) higher top speed
  • Uses 2.0 L/100 km less fuel
  • Has 94 hp/t better power-to-weight

Pros

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

Cons

  • Smallest trunk

Maserati GranTurismo I S 4.7

  • Has 60 Nm more
  • Has 57 km (35 mi) more estimated range
  • Has 155 L more trunk volume

Pros

  • Highest torque
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (997) GT3 RS 3.8
Maserati GranTurismo I S 4.7
Compare selected cars
2 vehicles selected

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