Porsche 911 (991)
Car comparison
Porsche 911 (991) Carrera 4 3.4vsPorsche 718 Cayman (982) 2.0
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonPorsche 718 Cayman (982)
2.0
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
Porsche 911 (991) Carrera 4 3.4
- Quickest 0-100 km/h4.9 s
- Fastest top speed285 km/h177 mph
- Most powerful350 hp261 kW
- Highest torque390 Nm288 lb-ft
- Best power-to-weight241 hp/t180 kW/t4.1 kg/hp
- Best estimated range731 km454 mi
- Largest trunk385 L
- Best overall score66/100
- Best performance score73/100
- Best practicality score50/100
Porsche 718 Cayman (982) 2.0
- Lightest1,335 kg2,943 lb
- 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
- Lowest CO2 emissions168 g/km
- Best economy score87/100
Specification comparison
| Model | Porsche911 (991)Carrera 4 3.4 | Porsche718 Cayman (982)2.0 |
|---|---|---|
| Power | 350hp261kW | 300hp224kW |
| Torque | 390Nm288lb-ft | 380Nm280lb-ft |
| Curb weight | 1,450kg3,197lb | 1,335kg2,943lb |
| Gross weight | 1,845kg4,068lb | 1,655kg3,649lb |
| Top speed | 285 km/h 177 mph | Unrestricted 285 km/h177 mph Restricted 275 km/h171 mph Calculated |
| To 99% top speed | 68.4s99% target: 282 km/h / 175 mph Calculated | 96.1s99% target: 282 km/h / 175 mph Calculated |
| 0-100 km/h | 4.9s | 5.1s |
| 0-200 km/h | 15.4s Calculated | 18.3s |
| 0-60 mph | 4.7s Calculated | 4.8s Calculated |
| Fuel consumption | 9.3L/100 km25.3mpg US30.4mpg UK | 7.4L/100 km31.8mpg US38.2mpg UK |
| Fuel consumption city | 12.9L/100 km18.2mpg US21.9mpg UK | 9.9L/100 km23.8mpg US28.5mpg UK |
| Fuel consumption highway | 7.4L/100 km31.8mpg US38.2mpg UK | 6L/100 km39.2mpg US47.1mpg UK |
| Quarter mile | 12.9s Calculated | 13.3s Calculated |
| Power-to-weight | 241hp/t180kW/t109hp/1000 lb Calculated | 225hp/t168kW/t102hp/1000 lb Calculated |
| Torque-to-weight | 269Nm/t180lb-ft/ton Calculated | 285Nm/t190lb-ft/ton Calculated |
| Estimated range | 731km454mi Calculated | 730km453mi Calculated |
| Displacement | 3,436cc210cu in | 1,988cc121cu in |
| Length | 4,491mm177in | 4,379mm172in |
| Width | 1,852mm73in | 1,801mm71in |
| Height | 1,304mm51in | 1,286mm51in |
| Wheelbase | 2,450mm96in | 2,475mm97in |
| Front track | 1,532mm60in | 1,515mm60in |
| Rear track | 1,560mm61in | 1,532mm60in |
| Trunk volume | 385L | 334L |
| Doors | 2 | 2 |
| Seats | 4 | 2 |
| Fuel tank | 68L | 54L |
| CO2 emissions | 218g/km | 168g/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) Carrera 4 3.4: Power / Torque
- Porsche 718 Cayman (982) 2.0: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| Porsche911 (991)Carrera 4 3.4 | 7,400 rpm | 5,600 rpm | 7,650 rpm |
| Porsche718 Cayman (982)2.0 | 6,500 rpm | 1,950-4,500 rpm | 7,500 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | Porsche911 (991)Carrera 4 3.4 | Porsche718 Cayman (982)2.0 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 4.7 s | 4.8 s |
0-100 km/h 0-62 mph | 4.9 s | 5.1 s |
0-200 km/h 0-124 mph | 15.4 s | 18.3 s |
| Top speed | 285 km/h 177 mph | Unrestricted 285 km/h177 mph Restricted 275 km/h171 mph Likely limited |
| Drag race simulation | ||
60 ft 18 m | 2.2 s | 2.1 s |
330 ft 101 m | 5.7 s | 5.7 s |
1/8 mile 201 m | 8.5 s | 8.6 s |
1000 ft 305 m | 10.9 s | 11.1 s |
1/4 mile 402 m | 12.9 s | 13.3 s |
Trap speed 1/4 mile 402 m | 183 km/h 114 mph | 173 km/h 107 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4 3.4 | 350 hp 261 kW |
| Porsche718 Cayman (982)2.0 | 300 hp 224 kW |
Porsche 911 (991) Carrera 4 3.4 has 50 hp more than Porsche 718 Cayman (982) 2.0.
The biggest power difference is between Porsche 718 Cayman (982) 2.0 and Porsche 911 (991) Carrera 4 3.4: 50 hp (37 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4 3.4 | 390 Nm 288 lb-ft |
| Porsche718 Cayman (982)2.0 | 380 Nm 280 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4 3.4 | 1,450 kg 3,197 lb |
| Porsche718 Cayman (982)2.0 | 1,335 kg 2,943 lb |
Top speed without limiter comparison
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4 3.4 | 285 km/h 177 mph |
| Porsche718 Cayman (982)2.0 | Unrestricted 285 km/h177 mph Restricted 275 km/h171 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4 3.4 | 4.9 s |
| Porsche718 Cayman (982)2.0 | 5.1 s |
The biggest 0-100 km/h difference is between Porsche 911 (991) Carrera 4 3.4 and Porsche 718 Cayman (982) 2.0: 0.2 s.
Fuel consumption comparison
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4 3.4 | 9.3 L/100 km 25.3 mpg US 30.4 mpg UK |
| Porsche718 Cayman (982)2.0 | 7.4 L/100 km 31.8 mpg US 38.2 mpg UK |
The biggest fuel consumption difference is between Porsche 718 Cayman (982) 2.0 and Porsche 911 (991) Carrera 4 3.4: 1.9 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)Carrera 4 3.4 | 241 hp/t 180 kW/t 4.1 kg/hp |
| Porsche718 Cayman (982)2.0 | 225 hp/t 168 kW/t 4.4 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4 3.4 | 731 km 454 mi |
| Porsche718 Cayman (982)2.0 | 730 km 453 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| Porsche911 (991)Carrera 4 3.4 | 350 hp 261 kW | 4.9 s | 285 km/h 177 mph |
| Porsche718 Cayman (982)2.0 | 300 hp 224 kW | 5.1 s | Unrestricted 285 km/h177 mph Restricted 275 km/h171 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)Carrera 4 3.4 |
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| Porsche718 Cayman (982)2.0 |
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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)Carrera 4 3.4 |
| 9.3 L/100 km 25.3 mpg US 30.4 mpg UK | ||||||
| Porsche718 Cayman (982)2.0 |
| 7.4 L/100 km 31.8 mpg US 38.2 mpg UK | ||||||
Porsche 911 (991) Carrera 4 3.4 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)Carrera 4 3.4 | 9.3 L/100 km 25.3 mpg US 30.4 mpg UK | 4.9 s |
| Porsche718 Cayman (982)2.0 | 7.4 L/100 km 31.8 mpg US 38.2 mpg UK | 5.1 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)Carrera 4 3.4 | 241 hp/t 180 kW/t 4.1 kg/hp | 9.3 L/100 km 25.3 mpg US 30.4 mpg UK |
| Porsche718 Cayman (982)2.0 | 225 hp/t 168 kW/t 4.5 kg/hp | 7.4 L/100 km 31.8 mpg US 38.2 mpg UK |
Detailed score breakdown
| Vehicle | Porsche911 (991)Carrera 4 3.4 | Porsche718 Cayman (982)2.0 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 350 hp 261 kW | 300 hp 224 kW | ||||||||||||||||
| Torque | 390 Nm 288 lb-ft | 380 Nm 280 lb-ft | ||||||||||||||||
| Acceleration | 4.9 s | 5.1 s | ||||||||||||||||
| Top speed | 285 km/h 177 mph | Unrestricted 285 km/h177 mph Restricted 275 km/h171 mph | ||||||||||||||||
| Lightness | 1,450 kg 3,197 lb | 1,335 kg 2,943 lb | ||||||||||||||||
| Fuel consumption | 9.3 L/100 km 25.3 mpg US 30.4 mpg UK | 7.4 L/100 km 31.8 mpg US 38.2 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 731 km 454 mi | 730 km 453 mi | ||||||||||||||||
| CO2 score | 218 g/km | 168 g/km | ||||||||||||||||
| Trunk score | 385 L 13.6 cu ft | 334 L 11.8 cu ft | ||||||||||||||||
| Power-to-weight score | 241 hp/t 180 kW/t 4.1 kg/hp | 225 hp/t 168 kW/t 4.5 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) Carrera 4 3.4 | Porsche 718 Cayman (982) 2.0 |
|---|---|---|
| Consumption | 9.3 L/100 km25.3 mpg US30.4 mpg UK | 7.4 L/100 km31.8 mpg US38.2 mpg UK |
| Cost / 100 km | 16.28 LC100 km | 12.95 LC100 km |
| Cost / 100 mi | 26.19 LC100 mi | 20.84 LC100 mi |
| Annual fuel used | 1,395 L369 US gal307 UK gal | 1,110 L293 US gal244 UK gal |
| Annual fuel cost | 2,441 LC/year | 1,943 LC/year |
Head-to-head comparisons
Porsche 911 (991) Carrera 4 3.4
- Has 50 hp more
- Has 10 Nm more
- Is 0.2 s quicker from 0-100 km/h
- Has 17 hp/t better power-to-weight
- Has 1 km (1 mi) more estimated range
- Has 51 L more trunk volume
Pros
- Quickest 0-100 km/h in this comparison
- Highest top speed
- Most powerful
- Highest torque
- Best power-to-weight ratio
- Best estimated range
- Largest trunk
Cons
- Highest combined fuel consumption
- Heaviest
- Highest CO2 emissions
Porsche 718 Cayman (982) 2.0
- Is 115 kg lighter
- Uses 1.9 L/100 km less fuel
- Emits 50 g/km less CO2
Pros
- Lightest
- Lowest combined fuel consumption
Cons
- Slowest 0-100 km/h
- Lowest power
- Smallest trunk
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