Porsche 911 (991 II)
Car comparison
Porsche 911 (991 II) Carrera 3.0vsPorsche Cayman (987C) · Facelift 2009 R 3.4
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonPorsche Cayman (987C) · Facelift 2009
R 3.4
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
Porsche 911 (991 II) Carrera 3.0
- Quickest 0-100 km/h4.4 s
- Fastest top speed293 km/h182 mph
- Most powerful370 hp276 kW
- Highest torque450 Nm332 lb-ft
- Best power-to-weight255 hp/t190 kW/t3.9 kg/hp
- Lowest combined fuel consumption7.4 L/100 km31.8 mpg US38.2 mpg UK
- Lowest city consumption9.9 L/100 km23.8 mpg US28.5 mpg UK
- Lowest highway consumption6.0 L/100 km39.2 mpg US47.1 mpg UK
- Best estimated range865 km537 mi
- Best overall score65/100
- Best performance score77/100
- Best economy score87/100
- Best practicality score41/100
Porsche Cayman (987C) Facelift 2009 R 3.4
- Lightest1,295 kg2,855 lb
- Largest trunk260 L
Specification comparison
| Model | Porsche911 (991 II)Carrera 3.0 | PorscheCayman (987C)Facelift 2009R 3.4 |
|---|---|---|
| Power | 370hp276kW | 330hp246kW |
| Torque | 450Nm332lb-ft | 370Nm273lb-ft |
| Curb weight | 1,450kg3,197lb | 1,295kg2,855lb |
| Gross weight | 1,890kg4,167lb | 1,620kg3,571lb |
| Top speed | 293 km/h 182 mph | 282 km/h 175 mph |
| To 99% top speed | 61.0s99% target: 290 km/h / 180 mph Calculated | 82.5s99% target: 279 km/h / 173 mph Calculated |
| 0-100 km/h | 4.4s | 5.0s |
| 0-200 km/h | 13.3s Calculated | 17.2s |
| 0-60 mph | 4.2s Calculated | 4.8s Calculated |
| Fuel consumption | 7.4L/100 km31.8mpg US38.2mpg UK | 9.7L/100 km24.2mpg US29.1mpg UK |
| Fuel consumption city | 9.9L/100 km23.8mpg US28.5mpg UK | 14.2L/100 km16.6mpg US19.9mpg UK |
| Fuel consumption highway | 6L/100 km39.2mpg US47.1mpg UK | 7.1L/100 km33.1mpg US39.8mpg UK |
| Quarter mile | 12.3s Calculated | 13.1s Calculated |
| Power-to-weight | 255hp/t190kW/t116hp/1000 lb Calculated | 255hp/t190kW/t116hp/1000 lb Calculated |
| Torque-to-weight | 310Nm/t208lb-ft/ton Calculated | 286Nm/t191lb-ft/ton Calculated |
| Estimated range | 865km537mi Calculated | 557km346mi Calculated |
| Displacement | 2,981cc182cu in | 3,436cc210cu in |
| Length | 4,499mm177in | 4,347mm171in |
| Width | 1,808mm71in | 1,801mm71in |
| Height | 1,294mm51in | 1,285mm51in |
| Wheelbase | 2,450mm96in | 2,415mm95in |
| Front track | - | 1,490mm59in |
| Rear track | - | 1,530mm60in |
| Ground clearance | - | 103mm4in |
| Trunk volume | 145L | 260L |
| Doors | 2 | 2 |
| Seats | 4 | 2 |
| Fuel tank | 64L | 54L |
| CO2 emissions | 169g/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 3.0: Power / Torque
- Porsche Cayman (987C) Facelift 2009 R 3.4: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| Porsche911 (991 II)Carrera 3.0 | 6,500 rpm | 1,700-5,000 rpm | 6,750 rpm |
| PorscheCayman (987C)Facelift 2009R 3.4 | 7,400 rpm | 4,750 rpm | 7,650 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | Porsche911 (991 II)Carrera 3.0 | PorscheCayman (987C)Facelift 2009R 3.4 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 4.2 s | 4.8 s |
0-100 km/h 0-62 mph | 4.4 s | 5.0 s |
0-200 km/h 0-124 mph | 13.3 s | 17.2 s |
| Top speed | 293 km/h 182 mph | 282 km/h 175 mph |
| Drag race simulation | ||
60 ft 18 m | 2.1 s | 2.1 s |
330 ft 101 m | 5.5 s | 5.7 s |
1/8 mile 201 m | 8.1 s | 8.6 s |
1000 ft 305 m | 10.4 s | 11.0 s |
1/4 mile 402 m | 12.3 s | 13.1 s |
Trap speed 1/4 mile 402 m | 192 km/h 120 mph | 177 km/h 110 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera 3.0 | 370 hp 276 kW |
| PorscheCayman (987C)Facelift 2009R 3.4 | 330 hp 246 kW |
Porsche 911 (991 II) Carrera 3.0 has 40 hp more than Porsche Cayman (987C) Facelift 2009 R 3.4.
The biggest power difference is between Porsche Cayman (987C) Facelift 2009 R 3.4 and Porsche 911 (991 II) Carrera 3.0: 40 hp (30 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera 3.0 | 450 Nm 332 lb-ft |
| PorscheCayman (987C)Facelift 2009R 3.4 | 370 Nm 273 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera 3.0 | 1,450 kg 3,197 lb |
| PorscheCayman (987C)Facelift 2009R 3.4 | 1,295 kg 2,855 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 3.0 | 293 km/h 182 mph |
| PorscheCayman (987C)Facelift 2009R 3.4 | 282 km/h 175 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera 3.0 | 4.4 s |
| PorscheCayman (987C)Facelift 2009R 3.4 | 5.0 s |
The biggest 0-100 km/h difference is between Porsche 911 (991 II) Carrera 3.0 and Porsche Cayman (987C) Facelift 2009 R 3.4: 0.6 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 3.0 | 7.4 L/100 km 31.8 mpg US 38.2 mpg UK |
| PorscheCayman (987C)Facelift 2009R 3.4 | 9.7 L/100 km 24.2 mpg US 29.1 mpg UK |
The biggest fuel consumption difference is between Porsche 911 (991 II) Carrera 3.0 and Porsche Cayman (987C) Facelift 2009 R 3.4: 2.3 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 3.0 | 255 hp/t 190 kW/t 3.9 kg/hp |
| PorscheCayman (987C)Facelift 2009R 3.4 | 255 hp/t 190 kW/t 3.9 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| Porsche911 (991 II)Carrera 3.0 | 865 km 537 mi |
| PorscheCayman (987C)Facelift 2009R 3.4 | 557 km 346 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| Porsche911 (991 II)Carrera 3.0 | 370 hp 276 kW | 4.4 s | 293 km/h 182 mph |
| PorscheCayman (987C)Facelift 2009R 3.4 | 330 hp 246 kW | 5.0 s | 282 km/h 175 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 3.0 |
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| PorscheCayman (987C)Facelift 2009R 3.4 |
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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 3.0 |
| 7.4 L/100 km 31.8 mpg US 38.2 mpg UK | ||||||
| PorscheCayman (987C)Facelift 2009R 3.4 |
| 9.7 L/100 km 24.2 mpg US 29.1 mpg UK | ||||||
Porsche 911 (991 II) Carrera 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 3.0 | 7.4 L/100 km 31.8 mpg US 38.2 mpg UK | 4.4 s |
| PorscheCayman (987C)Facelift 2009R 3.4 | 9.7 L/100 km 24.2 mpg US 29.1 mpg UK | 5.0 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 3.0 | 255 hp/t 190 kW/t 3.9 kg/hp | 7.4 L/100 km 31.8 mpg US 38.2 mpg UK |
| PorscheCayman (987C)Facelift 2009R 3.4 | 255 hp/t 190 kW/t 3.9 kg/hp | 9.7 L/100 km 24.2 mpg US 29.1 mpg UK |
Detailed score breakdown
| Vehicle | Porsche911 (991 II)Carrera 3.0 | PorscheCayman (987C)Facelift 2009R 3.4 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 370 hp 276 kW | 330 hp 246 kW | ||||||||||||||||
| Torque | 450 Nm 332 lb-ft | 370 Nm 273 lb-ft | ||||||||||||||||
| Acceleration | 4.4 s | 5.0 s | ||||||||||||||||
| Top speed | 293 km/h 182 mph | 282 km/h 175 mph | ||||||||||||||||
| Lightness | 1,450 kg 3,197 lb | 1,295 kg 2,855 lb | ||||||||||||||||
| Fuel consumption | 7.4 L/100 km 31.8 mpg US 38.2 mpg UK | 9.7 L/100 km 24.2 mpg US 29.1 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 865 km 537 mi | 557 km 346 mi | ||||||||||||||||
| CO2 score | 169 g/km | - | ||||||||||||||||
| Trunk score | 145 L 5.1 cu ft | 260 L 9.2 cu ft | ||||||||||||||||
| Power-to-weight score | 255 hp/t 190 kW/t 3.9 kg/hp | 255 hp/t 190 kW/t 3.9 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 3.0 | Porsche Cayman (987C) Facelift 2009 R 3.4 |
|---|---|---|
| Consumption | 7.4 L/100 km31.8 mpg US38.2 mpg UK | 9.7 L/100 km24.2 mpg US29.1 mpg UK |
| Cost / 100 km | 12.95 LC100 km | 16.97 LC100 km |
| Cost / 100 mi | 20.84 LC100 mi | 27.32 LC100 mi |
| Annual fuel used | 1,110 L293 US gal244 UK gal | 1,455 L384 US gal320 UK gal |
| Annual fuel cost | 1,943 LC/year | 2,546 LC/year |
Head-to-head comparisons
Porsche 911 (991 II) Carrera 3.0
- Has 40 hp more
- Has 80 Nm more
- Is 0.6 s quicker from 0-100 km/h
- Has 11 km/h (7 mph) higher top speed
- Uses 2.3 L/100 km less fuel
- Has 0 hp/t better power-to-weight
- Has 308 km (191 mi) more estimated range
Pros
- Quickest 0-100 km/h in this comparison
- Highest top speed
- Most powerful
- Highest torque
- Lowest combined fuel consumption
- Best power-to-weight ratio
- Best estimated range
Cons
- Heaviest
- Smallest trunk
Porsche Cayman (987C) Facelift 2009 R 3.4
- Is 155 kg lighter
- Has 115 L more trunk volume
Pros
- Lightest
- Largest trunk
Cons
- Slowest 0-100 km/h
- Lowest power
- Highest combined fuel consumption
- Lowest top speed
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