Porsche 911 (991)
Car comparison
Porsche 911 (991) Carrera 4S 3.8vsPorsche 911 Targa (991) 4S 3.8
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonPorsche 911 Targa (991)
4S 3.8
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
Porsche 911 Targa (991) 4S 3.8
- Quickest 0-100 km/h4.4 s
- Lowest combined fuel consumption9.2 L/100 km25.6 mpg US30.7 mpg UK
- Lowest city consumption12.5 L/100 km18.8 mpg US22.6 mpg UK
- Lowest highway consumption7.1 L/100 km33.1 mpg US39.8 mpg UK
- Lowest CO2 emissions214 g/km
- Best estimated range739 km459 mi
- Best economy score82/100
- Best practicality score51/100
Porsche 911 (991) Carrera 4S 3.8
- Fastest top speed299 km/h186 mph
- Most powerful400 hp298 kW
- Highest torque440 Nm325 lb-ft
- Lightest1,465 kg3,230 lb
- Best power-to-weight273 hp/t204 kW/t3.7 kg/hp
- Largest trunk385 L
- Best overall score70/100
- Best performance score79/100
Specification comparison
| Model | Porsche911 (991)Carrera 4S 3.8 | Porsche911 Targa (991)4S 3.8 |
|---|---|---|
| Power | 400hp298kW | 400hp298kW |
| Torque | 440Nm325lb-ft | 440Nm325lb-ft |
| Curb weight | 1,465kg3,230lb | 1,575kg3,472lb |
| Gross weight | 1,875kg4,134lb | 1,980kg4,365lb |
| Top speed | 299 km/h 186 mph | 294 km/h 183 mph |
| To 99% top speed | 64.1s99% target: 296 km/h / 184 mph Calculated | 59.4s99% target: 291 km/h / 181 mph Calculated |
| 0-100 km/h | 4.5s | 4.4s |
| 0-200 km/h | 13.4s Calculated | 13.1s Calculated |
| 0-60 mph | 4.3s Calculated | 4.2s Calculated |
| Fuel consumption | 9.9L/100 km23.8mpg US28.5mpg UK | 9.2L/100 km25.6mpg US30.7mpg UK |
| Fuel consumption city | 13.8L/100 km17mpg US20.5mpg UK | 12.5L/100 km18.8mpg US22.6mpg UK |
| Fuel consumption highway | 7.6L/100 km30.9mpg US37.2mpg UK | 7.1L/100 km33.1mpg US39.8mpg UK |
| Quarter mile | 12.4s Calculated | 12.3s Calculated |
| Power-to-weight | 273hp/t204kW/t124hp/1000 lb Calculated | 254hp/t189kW/t115hp/1000 lb Calculated |
| Torque-to-weight | 300Nm/t201lb-ft/ton Calculated | 279Nm/t187lb-ft/ton Calculated |
| Estimated range | 687km427mi Calculated | 739km459mi Calculated |
| Displacement | 3,800cc232cu in | 3,800cc232cu in |
| Length | 4,491mm177in | 4,491mm177in |
| Width | 1,852mm73in | 1,852mm73in |
| Height | 1,296mm51in | 1,289mm51in |
| Wheelbase | 2,450mm96in | 2,450mm96in |
| Front track | 1,538mm61in | 1,538mm61in |
| Rear track | 1,552mm61in | 1,552mm61in |
| Trunk volume | 385L | 285L |
| Doors | 2 | 2 |
| Seats | 4 | 4 |
| Fuel tank | 68L | 68L |
| CO2 emissions | 233g/km | 214g/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 4S 3.8: Power / Torque
- Porsche 911 Targa (991) 4S 3.8: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| Porsche911 (991)Carrera 4S 3.8 | 7,400 rpm | 5,600 rpm | 7,650 rpm |
| Porsche911 Targa (991)4S 3.8 | 7,400 rpm | 5,600 rpm | 7,650 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | Porsche911 (991)Carrera 4S 3.8 | Porsche911 Targa (991)4S 3.8 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 4.3 s | 4.2 s |
0-100 km/h 0-62 mph | 4.5 s | 4.4 s |
0-200 km/h 0-124 mph | 13.4 s | 13.1 s |
| Top speed | 299 km/h 186 mph | 294 km/h 183 mph |
| Drag race simulation | ||
60 ft 18 m | 2.2 s | 2.1 s |
330 ft 101 m | 5.5 s | 5.5 s |
1/8 mile 201 m | 8.2 s | 8.1 s |
1000 ft 305 m | 10.5 s | 10.4 s |
1/4 mile 402 m | 12.4 s | 12.3 s |
Trap speed 1/4 mile 402 m | 192 km/h 119 mph | 194 km/h 120 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4S 3.8 | 400 hp 298 kW |
| Porsche911 Targa (991)4S 3.8 | 400 hp 298 kW |
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4S 3.8 | 440 Nm 325 lb-ft |
| Porsche911 Targa (991)4S 3.8 | 440 Nm 325 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4S 3.8 | 1,465 kg 3,230 lb |
| Porsche911 Targa (991)4S 3.8 | 1,575 kg 3,472 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 4S 3.8 | 299 km/h 186 mph |
| Porsche911 Targa (991)4S 3.8 | 294 km/h 183 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4S 3.8 | 4.5 s |
| Porsche911 Targa (991)4S 3.8 | 4.4 s |
The biggest 0-100 km/h difference is between Porsche 911 Targa (991) 4S 3.8 and Porsche 911 (991) Carrera 4S 3.8: 0.1 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 4S 3.8 | 9.9 L/100 km 23.8 mpg US 28.5 mpg UK |
| Porsche911 Targa (991)4S 3.8 | 9.2 L/100 km 25.6 mpg US 30.7 mpg UK |
The biggest fuel consumption difference is between Porsche 911 Targa (991) 4S 3.8 and Porsche 911 (991) Carrera 4S 3.8: 0.7 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 4S 3.8 | 273 hp/t 204 kW/t 3.7 kg/hp |
| Porsche911 Targa (991)4S 3.8 | 254 hp/t 189 kW/t 3.9 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera 4S 3.8 | 687 km 427 mi |
| Porsche911 Targa (991)4S 3.8 | 739 km 459 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| Porsche911 (991)Carrera 4S 3.8 | 400 hp 298 kW | 4.5 s | 299 km/h 186 mph |
| Porsche911 Targa (991)4S 3.8 | 400 hp 298 kW | 4.4 s | 294 km/h 183 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 4S 3.8 |
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| Porsche911 Targa (991)4S 3.8 |
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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 4S 3.8 |
| 9.9 L/100 km 23.8 mpg US 28.5 mpg UK | ||||||
| Porsche911 Targa (991)4S 3.8 |
| 9.2 L/100 km 25.6 mpg US 30.7 mpg UK | ||||||
Porsche 911 Targa (991) 4S 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.
| Vehicle | Fuel consumption, L/100 km | 0-100 km/h, s |
|---|---|---|
| Porsche911 (991)Carrera 4S 3.8 | 9.9 L/100 km 23.8 mpg US 28.5 mpg UK | 4.5 s |
| Porsche911 Targa (991)4S 3.8 | 9.2 L/100 km 25.6 mpg US 30.7 mpg UK | 4.4 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 4S 3.8 | 273 hp/t 204 kW/t 3.7 kg/hp | 9.9 L/100 km 23.8 mpg US 28.5 mpg UK |
| Porsche911 Targa (991)4S 3.8 | 254 hp/t 189 kW/t 3.9 kg/hp | 9.2 L/100 km 25.6 mpg US 30.7 mpg UK |
Detailed score breakdown
| Vehicle | Porsche911 (991)Carrera 4S 3.8 | Porsche911 Targa (991)4S 3.8 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 400 hp 298 kW | 400 hp 298 kW | ||||||||||||||||
| Torque | 440 Nm 325 lb-ft | 440 Nm 325 lb-ft | ||||||||||||||||
| Acceleration | 4.5 s | 4.4 s | ||||||||||||||||
| Top speed | 299 km/h 186 mph | 294 km/h 183 mph | ||||||||||||||||
| Lightness | 1,465 kg 3,230 lb | 1,575 kg 3,472 lb | ||||||||||||||||
| Fuel consumption | 9.9 L/100 km 23.8 mpg US 28.5 mpg UK | 9.2 L/100 km 25.6 mpg US 30.7 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 687 km 427 mi | 739 km 459 mi | ||||||||||||||||
| CO2 score | 233 g/km | 214 g/km | ||||||||||||||||
| Trunk score | 385 L 13.6 cu ft | 285 L 10.1 cu ft | ||||||||||||||||
| Power-to-weight score | 273 hp/t 204 kW/t 3.7 kg/hp | 254 hp/t 189 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) Carrera 4S 3.8 | Porsche 911 Targa (991) 4S 3.8 |
|---|---|---|
| Consumption | 9.9 L/100 km23.8 mpg US28.5 mpg UK | 9.2 L/100 km25.6 mpg US30.7 mpg UK |
| Cost / 100 km | 17.33 LC100 km | 16.10 LC100 km |
| Cost / 100 mi | 27.88 LC100 mi | 25.91 LC100 mi |
| Annual fuel used | 1,485 L392 US gal327 UK gal | 1,380 L365 US gal304 UK gal |
| Annual fuel cost | 2,599 LC/year | 2,415 LC/year |
Head-to-head comparisons
Porsche 911 (991) Carrera 4S 3.8
- Is 110 kg lighter
- Has 5 km/h (3 mph) higher top speed
- Has 19 hp/t better power-to-weight
- Has 100 L more trunk volume
Pros
- Highest top speed
- Most powerful
- Highest torque
- Lightest
- Best power-to-weight ratio
- Largest trunk
Cons
- Slowest 0-100 km/h
- Highest combined fuel consumption
- Highest CO2 emissions
Porsche 911 Targa (991) 4S 3.8
- Is 0.1 s quicker from 0-100 km/h
- Uses 0.7 L/100 km less fuel
- Has 52 km (32 mi) more estimated range
- Emits 19 g/km less CO2
Pros
- Quickest 0-100 km/h in this comparison
- Lowest combined fuel consumption
- Best estimated range
Cons
- Heaviest
- Lowest top speed
- Smallest trunk
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