Porsche 911 (991 II)
Car comparison
Porsche 911 (991 II) Carrera GTS 3.0vsPorsche 911 (997) · Facelift 2008 Turbo 3.8
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonPorsche 911 (997) · Facelift 2008
Turbo 3.8
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
Porsche 911 (991 II) Carrera GTS 3.0
- Fastest top speed320 km/h199 mph Unrestricted312 km/h194 mph Restricted
- Lightest1,450 kg3,197 lb
- Lowest combined fuel consumption9.4 L/100 km25.0 mpg US30.1 mpg UK
- Lowest city consumption12.9 L/100 km18.2 mpg US21.9 mpg UK
- Lowest highway consumption7.3 L/100 km32.2 mpg US38.7 mpg UK
- Lowest CO2 emissions212 g/km
- Best estimated range681 km423 mi
- Largest trunk385 L
- Best economy score82/100
- Best practicality score51/100
Porsche 911 (997) Facelift 2008 Turbo 3.8
- Quickest 0-100 km/h3.6 s
- Most powerful500 hp373 kW
- Highest torque650 Nm479 lb-ft
- Best power-to-weight313 hp/t234 kW/t3.2 kg/hp
- Best overall score78/100
- Best performance score90/100
Specification comparison
| Model | Porsche911 (991 II)Carrera GTS 3.0 | Porsche911 (997)Facelift 2008Turbo 3.8 |
|---|---|---|
| Power | 450hp336kW | 500hp373kW |
| Torque | 550Nm406lb-ft | 650Nm479lb-ft |
| Curb weight | 1,450kg3,197lb | 1,595kg3,516lb |
| Gross weight | 1,920kg4,233lb | 1,960kg4,321lb |
| Top speed | Unrestricted 320 km/h199 mph Restricted 312 km/h194 mph Calculated | 312 km/h 194 mph |
| To 99% top speed | 86.4s99% target: 317 km/h / 197 mph Calculated | 52.6s99% target: 309 km/h / 192 mph Calculated |
| 0-100 km/h | 4.1s | 3.6s |
| 0-200 km/h | 13.2s | 10.3s Calculated |
| 0-60 mph | 3.9s Calculated | 3.4s Calculated |
| Fuel consumption | 9.4L/100 km25mpg US30.1mpg UK | 11.4L/100 km20.6mpg US24.8mpg UK |
| Fuel consumption city | 12.9L/100 km18.2mpg US21.9mpg UK | 16.5L/100 km14.3mpg US17.1mpg UK |
| Fuel consumption highway | 7.3L/100 km32.2mpg US38.7mpg UK | 8.1L/100 km29mpg US34.9mpg UK |
| Quarter mile | 12.1s Calculated | 11.3s Calculated |
| Power-to-weight | 310hp/t231kW/t141hp/1000 lb Calculated | 313hp/t234kW/t142hp/1000 lb Calculated |
| Torque-to-weight | 379Nm/t254lb-ft/ton Calculated | 408Nm/t273lb-ft/ton Calculated |
| Estimated range | 681km423mi Calculated | 588km365mi Calculated |
| Displacement | 2,981cc182cu in | 3,800cc232cu in |
| Length | 4,528mm178in | 4,450mm175in |
| Width | 1,852mm73in | 1,852mm73in |
| Height | 1,284mm51in | 1,300mm51in |
| Wheelbase | 2,450mm96in | 2,350mm93in |
| Front track | 1,541mm61in | - |
| Rear track | 1,544mm61in | - |
| Max trunk volume | 385L | 105L |
| Doors | 2 | 2 |
| Seats | 4 | 4 |
| Fuel tank | 64L | 67L |
| CO2 emissions | 212g/km | 268g/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 II) Carrera GTS 3.0: Power / Torque
- Porsche 911 (997) Facelift 2008 Turbo 3.8: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 6,500 rpm | 2,150-5,000 rpm | 7,500 rpm |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 6,000-6,500 rpm | 1,950-5,000 rpm | 6,750 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | Porsche911 (991 II)Carrera GTS 3.0 | Porsche911 (997)Facelift 2008Turbo 3.8 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 3.9 s | 3.4 s |
0-100 km/h 0-62 mph | 4.1 s | 3.6 s |
0-200 km/h 0-124 mph | 13.2 s | 10.3 s |
| Top speed | Unrestricted 320 km/h199 mph Restricted 312 km/h194 mph Likely limited | 312 km/h 194 mph |
| Drag race simulation | ||
60 ft 18 m | 2.0 s | 2.0 s |
330 ft 101 m | 5.2 s | 5.0 s |
1/8 mile 201 m | 7.9 s | 7.5 s |
1000 ft 305 m | 10.2 s | 9.6 s |
1/4 mile 402 m | 12.1 s | 11.3 s |
Trap speed 1/4 mile 402 m | 192 km/h 119 mph | 209 km/h 130 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 450 hp 336 kW |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 500 hp 373 kW |
Porsche 911 (997) Facelift 2008 Turbo 3.8 has 50 hp more than Porsche 911 (991 II) Carrera GTS 3.0.
The biggest power difference is between Porsche 911 (991 II) Carrera GTS 3.0 and Porsche 911 (997) Facelift 2008 Turbo 3.8: 50 hp (37 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 550 Nm 406 lb-ft |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 650 Nm 479 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 1,450 kg 3,197 lb |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 1,595 kg 3,516 lb |
Top speed without limiter comparison
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | Unrestricted 320 km/h199 mph Restricted 312 km/h194 mph |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 312 km/h 194 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 4.1 s |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 3.6 s |
The biggest 0-100 km/h difference is between Porsche 911 (997) Facelift 2008 Turbo 3.8 and Porsche 911 (991 II) Carrera GTS 3.0: 0.5 s.
Fuel consumption comparison
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 9.4 L/100 km 25.0 mpg US 30.1 mpg UK |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 11.4 L/100 km 20.6 mpg US 24.8 mpg UK |
The biggest fuel consumption difference is between Porsche 911 (991 II) Carrera GTS 3.0 and Porsche 911 (997) Facelift 2008 Turbo 3.8: 2.0 L/100 km.
Power-to-weight comparison
Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 310 hp/t 231 kW/t 3.2 kg/hp |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 313 hp/t 234 kW/t 3.2 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 681 km 423 mi |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 588 km 365 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 450 hp 336 kW | 4.1 s | Unrestricted 320 km/h199 mph Restricted 312 km/h194 mph |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 500 hp 373 kW | 3.6 s | 312 km/h 194 mph |
Most attractive quadrant
Scatter chart with performance score on the X axis and practicality score on the Y axis.
| Vehicle | Performance score | Practicality score | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 |
|
| ||||||||||||||
| Porsche911 (997)Facelift 2008Turbo 3.8 |
|
| ||||||||||||||
Performance vs fuel economy
Cars closer to the top-right corner combine stronger performance with better fuel economy scores.
| Vehicle | Performance score | Fuel economy score | ||||||
|---|---|---|---|---|---|---|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 |
| 9.4 L/100 km 25.0 mpg US 30.1 mpg UK | ||||||
| Porsche911 (997)Facelift 2008Turbo 3.8 |
| 11.4 L/100 km 20.6 mpg US 24.8 mpg UK | ||||||
Porsche 911 (991 II) Carrera 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.
| Vehicle | Fuel consumption, L/100 km | 0-100 km/h, s |
|---|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 9.4 L/100 km 25.0 mpg US 30.1 mpg UK | 4.1 s |
| Porsche911 (997)Facelift 2008Turbo 3.8 | 11.4 L/100 km 20.6 mpg US 24.8 mpg UK | 3.6 s |
Power-to-weight vs fuel consumption
The shaded area favors higher power-to-weight with lower combined fuel consumption.
| Vehicle | Power-to-weight, hp/t | Fuel consumption, L/100 km |
|---|---|---|
| Porsche911 (991 II)Carrera GTS 3.0 | 310 hp/t 231 kW/t 3.2 kg/hp | 9.4 L/100 km 25.0 mpg US 30.1 mpg UK |
| 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 |
Detailed score breakdown
| Vehicle | Porsche911 (991 II)Carrera GTS 3.0 | Porsche911 (997)Facelift 2008Turbo 3.8 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 450 hp 336 kW | 500 hp 373 kW | ||||||||||||||||
| Torque | 550 Nm 406 lb-ft | 650 Nm 479 lb-ft | ||||||||||||||||
| Acceleration | 4.1 s | 3.6 s | ||||||||||||||||
| Top speed | Unrestricted 320 km/h199 mph Restricted 312 km/h194 mph | 312 km/h 194 mph | ||||||||||||||||
| Lightness | 1,450 kg 3,197 lb | 1,595 kg 3,516 lb | ||||||||||||||||
| Fuel consumption | 9.4 L/100 km 25.0 mpg US 30.1 mpg UK | 11.4 L/100 km 20.6 mpg US 24.8 mpg UK | ||||||||||||||||
| Practicality |
|
| ||||||||||||||||
| Range score | 681 km 423 mi | 588 km 365 mi | ||||||||||||||||
| CO2 score | 212 g/km | 268 g/km | ||||||||||||||||
| Trunk score | 385 L 13.6 cu ft | 105 L 3.7 cu ft | ||||||||||||||||
| Power-to-weight score | 310 hp/t 231 kW/t 3.2 kg/hp | 313 hp/t 234 kW/t 3.2 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
| Vehicle | Porsche 911 (991 II) Carrera GTS 3.0 | Porsche 911 (997) Facelift 2008 Turbo 3.8 |
|---|---|---|
| Consumption | 9.4 L/100 km25 mpg US30.1 mpg UK | 11.4 L/100 km20.6 mpg US24.8 mpg UK |
| Cost / 100 km | 16.45 LC100 km | 19.95 LC100 km |
| Cost / 100 mi | 26.47 LC100 mi | 32.11 LC100 mi |
| Annual fuel used | 1,410 L372 US gal310 UK gal | 1,710 L452 US gal376 UK gal |
| Annual fuel cost | 2,468 LC/year | 2,993 LC/year |
Head-to-head comparisons
Porsche 911 (991 II) Carrera GTS 3.0
- Is 145 kg lighter
- Has 8 km/h (5 mph) higher top speed
- Uses 2.0 L/100 km less fuel
- Has 93 km (58 mi) more estimated range
- Has 280 L more trunk volume
- Emits 56 g/km less CO2
Pros
- Highest top speed
- Lightest
- Lowest combined fuel consumption
- Best estimated range
- Largest trunk
Cons
- Slowest 0-100 km/h
- Lowest power
Porsche 911 (997) Facelift 2008 Turbo 3.8
- Has 50 hp more
- Has 100 Nm more
- Is 0.5 s quicker from 0-100 km/h
- Has 3 hp/t better power-to-weight
Pros
- Quickest 0-100 km/h in this comparison
- Most powerful
- Highest torque
- Best power-to-weight ratio
Cons
- Highest combined fuel consumption
- Heaviest
- Lowest top speed
- Smallest trunk
- Highest CO2 emissions
Choose cars to compare
Popular comparisons























