Car comparison

Porsche 911 (997) · Facelift 2008 Turbo 3.8vsPorsche 911 (991) Carrera 3.4

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 ccGasolineAWDDual-clutchTurbochargedCoupe2009-2011
VS

Porsche 911 (991)

Carrera 3.4

350 hp3436 ccGasolineRWDDual-clutchNaturally aspiratedCoupe2011-2015

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

  • Quickest 0-100 km/h
    3.6 s
  • Fastest top speed
    312 km/h
    194 mph
  • Most powerful
    500 hp
    373 kW
  • Highest torque
    650 Nm
    479 lb-ft
  • Best power-to-weight
    313 hp/t
    234 kW/t
    3.2 kg/hp
  • Best overall score
    78/100
  • Best performance score
    90/100
  • Best practicality score
    51/100

Porsche 911 (991) Carrera 3.4

  • Lightest
    1,420 kg
    3,131 lb
  • Lowest combined fuel consumption
    8.2 L/100 km
    28.7 mpg US
    34.4 mpg UK
  • Lowest city consumption
    11.3 L/100 km
    20.8 mpg US
    25.0 mpg UK
  • Lowest highway consumption
    6.6 L/100 km
    35.6 mpg US
    42.8 mpg UK
  • Lowest CO2 emissions
    191 g/km
  • Best estimated range
    780 km
    485 mi
  • Largest trunk
    340 L
  • Best economy score
    85/100

Specification comparison

Specification comparison
ModelPorsche911 (997)Facelift 2008Turbo 3.8Porsche911 (991)Carrera 3.4
Power
500hp373kW
350hp261kW
Torque
650Nm479lb-ft
390Nm288lb-ft
Curb weight
1,595kg3,516lb
1,420kg3,131lb
Gross weight
1,960kg4,321lb
1,815kg4,001lb
Top speed
312 km/h
194 mph
287 km/h
178 mph
To 99% top speed
52.6s99% target: 309 km/h / 192 mph
Calculated
60.0s99% target: 284 km/h / 177 mph
Calculated
0-100 km/h
3.6s
4.4s
0-200 km/h
10.3s
Calculated
13.6s
Calculated
0-60 mph
3.4s
Calculated
4.2s
Calculated
Fuel consumption
11.4L/100 km20.6mpg US24.8mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption city
16.5L/100 km14.3mpg US17.1mpg UK
11.3L/100 km20.8mpg US25.0mpg UK
Fuel consumption highway
8.1L/100 km29mpg US34.9mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
Quarter mile
11.3s
Calculated
12.3s
Calculated
Power-to-weight
313hp/t234kW/t142hp/1000 lb
Calculated
246hp/t184kW/t112hp/1000 lb
Calculated
Torque-to-weight
408Nm/t273lb-ft/ton
Calculated
275Nm/t184lb-ft/ton
Calculated
Estimated range
588km365mi
Calculated
780km485mi
Calculated
Displacement
3,800cc232cu in
3,436cc210cu in
Length
4,450mm175in
4,491mm177in
Width
1,852mm73in
1,808mm71in
Height
1,300mm51in
1,303mm51in
Wheelbase
2,350mm93in
2,450mm96in
Front track-
1,532mm60in
Rear track-
1,518mm60in
Trunk volume-
340L
Max trunk volume
105L
-
Doors
2
2
Seats
4
4
Fuel tank
67L
64L
CO2 emissions
268g/km
191g/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 (991) Carrera 3.4PowerTorque
  • Porsche 911 (997) Facelift 2008 Turbo 3.8: Power / Torque
  • Porsche 911 (991) Carrera 3.4: 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 (991)Carrera 3.47,400 rpm5,600 rpm7,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (997)Facelift 2008Turbo 3.8Porsche911 (991)Carrera 3.4
Acceleration checkpoints
0-60 mph
0-97 km/h
3.4 s
4.2 s
0-100 km/h
0-62 mph
3.6 s
4.4 s
0-200 km/h
0-124 mph
10.3 s
13.6 s
Top speed
312 km/h
194 mph
287 km/h
178 mph
Drag race simulation
60 ft
18 m
2.0 s
2.1 s
330 ft
101 m
5.0 s
5.5 s
1/8 mile
201 m
7.5 s
8.1 s
1000 ft
305 m
9.6 s
10.4 s
1/4 mile
402 m
11.3 s
12.3 s
Trap speed
1/4 mile
402 m
209 km/h
130 mph
191 km/h
119 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 (991)Carrera 3.4
350 hp
261 kW

Porsche 911 (997) Facelift 2008 Turbo 3.8 has 150 hp more than Porsche 911 (991) Carrera 3.4.

The biggest power difference is between Porsche 911 (991) Carrera 3.4 and Porsche 911 (997) Facelift 2008 Turbo 3.8: 150 hp (112 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 (991)Carrera 3.4
390 Nm
288 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
1,595 kg
3,516 lb
Porsche911 (991)Carrera 3.4
1,420 kg
3,131 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 (991)Carrera 3.4
287 km/h
178 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 3.83.6 s
Porsche911 (991)Carrera 3.44.4 s

The biggest 0-100 km/h difference is between Porsche 911 (997) Facelift 2008 Turbo 3.8 and Porsche 911 (991) Carrera 3.4: 0.8 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
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
Porsche911 (991)Carrera 3.4
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991) Carrera 3.4 and Porsche 911 (997) Facelift 2008 Turbo 3.8: 3.2 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 2008Turbo 3.8
313 hp/t
234 kW/t
3.2 kg/hp
Porsche911 (991)Carrera 3.4
246 hp/t
184 kW/t
4.1 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
588 km
365 mi
Porsche911 (991)Carrera 3.4
780 km
485 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
3.6 s
312 km/h
194 mph
Porsche911 (991)Carrera 3.4
350 hp
261 kW
4.4 s
287 km/h
178 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/h3.6 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 (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.4 s
Top speed
287 km/h
178 mph
Doors/seats
2 doors
4 seats
Trunk
340 L
12.0 cu ft
Length
4,491 mm
176.8 in
Height
1,303 mm
51.3 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 2008Turbo 3.8
Power
500 hp
373 kW
0-100 km/h3.6 s
Top speed
312 km/h
194 mph
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
Porsche911 (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.4 s
Top speed
287 km/h
178 mph
8.2 L/100 km
28.7 mpg US
34.4 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
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
3.6 s
Porsche911 (991)Carrera 3.4
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
4.4 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
313 hp/t
234 kW/t
3.2 kg/hp
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
Porsche911 (991)Carrera 3.4
246 hp/t
184 kW/t
4.1 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (997)Facelift 2008Turbo 3.8Porsche911 (991)Carrera 3.4
Power
500 hp
373 kW
350 hp
261 kW
Torque
650 Nm
479 lb-ft
390 Nm
288 lb-ft
Acceleration
3.6 s
4.4 s
Top speed
312 km/h
194 mph
287 km/h
178 mph
Lightness
1,595 kg
3,516 lb
1,420 kg
3,131 lb
Fuel consumption
11.4 L/100 km
20.6 mpg US
24.8 mpg UK
8.2 L/100 km
28.7 mpg US
34.4 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
4 seats
Trunk
340 L
12.0 cu ft
Length
4,491 mm
176.8 in
Height
1,303 mm
51.3 in
Range score
588 km
365 mi
780 km
485 mi
CO2 score
268 g/km
191 g/km
Trunk score
105 L
3.7 cu ft
340 L
12.0 cu ft
Power-to-weight score
313 hp/t
234 kW/t
3.2 kg/hp
246 hp/t
184 kW/t
4.1 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 (991) Carrera 3.4
Consumption11.4 L/100 km20.6 mpg US24.8 mpg UK8.2 L/100 km28.7 mpg US34.4 mpg UK
Cost / 100 km19.95 LC100 km14.35 LC100 km
Cost / 100 mi32.11 LC100 mi23.09 LC100 mi
Annual fuel used1,710 L452 US gal376 UK gal1,230 L325 US gal271 UK gal
Annual fuel cost2,993 LC/year2,153 LC/year

Head-to-head comparisons

Porsche 911 (997) Facelift 2008 Turbo 3.8

  • Has 150 hp more
  • Has 260 Nm more
  • Is 0.8 s quicker from 0-100 km/h
  • Has 25 km/h (16 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
  • Highest torque
  • Best power-to-weight ratio

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk
  • Highest CO2 emissions

Porsche 911 (991) Carrera 3.4

  • Is 175 kg lighter
  • Uses 3.2 L/100 km less fuel
  • Has 193 km (120 mi) more estimated range
  • Has 235 L more trunk volume
  • Emits 77 g/km less CO2

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (997) Turbo 3.8
Porsche 911 (991) Carrera 3.4
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