Porsche 911 (991)
Car comparison
Porsche 911 (991) Carrera GTS 3.8vsPorsche 911 Cabriolet (991) Carrera GTS 3.8
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonPorsche 911 Cabriolet (991)
Carrera GTS 3.8
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
Porsche 911 (991) Carrera GTS 3.8
- Quickest 0-100 km/h4.0 s
- Fastest top speed304 km/h189 mph
- Most powerful430 hp321 kW
- Highest torque440 Nm325 lb-ft
- Lightest1,445 kg3,186 lb
- Best power-to-weight298 hp/t222 kW/t3.4 kg/hp
- Lowest combined fuel consumption8.7 L/100 km27.0 mpg US32.5 mpg UK
- Lowest city consumption12.2 L/100 km19.3 mpg US23.2 mpg UK
- Lowest highway consumption6.7 L/100 km35.1 mpg US42.2 mpg UK
- Lowest CO2 emissions202 g/km
- Best estimated range736 km457 mi
- Largest trunk385 L
- Best overall score72/100
- Best performance score82/100
- Best economy score83/100
- Best practicality score50/100
Specification comparison
| Model | Porsche911 (991)Carrera GTS 3.8 | Porsche911 Cabriolet (991)Carrera GTS 3.8 |
|---|---|---|
| Power | 430hp321kW | 430hp321kW |
| Torque | 440Nm325lb-ft | 440Nm325lb-ft |
| Curb weight | 1,445kg3,186lb | 1,515kg3,340lb |
| Gross weight | 1,870kg4,123lb | 1,925kg4,244lb |
| Top speed | 304 km/h 189 mph | 302 km/h 188 mph |
| To 99% top speed | 56.2s99% target: 301 km/h / 187 mph Calculated | 58.7s99% target: 299 km/h / 186 mph Calculated |
| 0-100 km/h | 4.0s | 4.2s |
| 0-200 km/h | 11.6s Calculated | 12.3s Calculated |
| 0-60 mph | 3.8s Calculated | 4.0s Calculated |
| Fuel consumption | 8.7L/100 km27mpg US32.5mpg UK | 8.9L/100 km26.4mpg US31.7mpg UK |
| Fuel consumption city | 12.2L/100 km19.3mpg US23.2mpg UK | 12.3L/100 km19.1mpg US23.0mpg UK |
| Fuel consumption highway | 6.7L/100 km35.1mpg US42.2mpg UK | 6.9L/100 km34.1mpg US40.9mpg UK |
| Quarter mile | 11.8s Calculated | 12.0s Calculated |
| Power-to-weight | 298hp/t222kW/t135hp/1000 lb Calculated | 284hp/t212kW/t129hp/1000 lb Calculated |
| Torque-to-weight | 304Nm/t204lb-ft/ton Calculated | 290Nm/t194lb-ft/ton Calculated |
| Estimated range | 736km457mi Calculated | 719km447mi Calculated |
| Displacement | 3,800cc232cu in | 3,800cc232cu in |
| Length | 4,509mm178in | 4,509mm178in |
| Width | 1,852mm73in | 1,852mm73in |
| Height | 1,295mm51in | 1,292mm51in |
| Wheelbase | 2,450mm96in | 2,450mm96in |
| Front track | 1,538mm61in | 1,538mm61in |
| Rear track | 1,560mm61in | 1,560mm61in |
| Trunk volume | 385L | 285L |
| Doors | 2 | 2 |
| Seats | 4 | 4 |
| Fuel tank | 64L | 64L |
| CO2 emissions | 202g/km | 207g/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 GTS 3.8: Power / Torque
- Porsche 911 Cabriolet (991) Carrera GTS 3.8: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| Porsche911 (991)Carrera GTS 3.8 | 7,500 rpm | 5,750 rpm | 7,750 rpm |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 7,500 rpm | 5,750 rpm | 7,750 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | Porsche911 (991)Carrera GTS 3.8 | Porsche911 Cabriolet (991)Carrera GTS 3.8 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 3.8 s | 4.0 s |
0-100 km/h 0-62 mph | 4.0 s | 4.2 s |
0-200 km/h 0-124 mph | 11.6 s | 12.3 s |
| Top speed | 304 km/h 189 mph | 302 km/h 188 mph |
| Drag race simulation | ||
60 ft 18 m | 2.1 s | 2.1 s |
330 ft 101 m | 5.3 s | 5.4 s |
1/8 mile 201 m | 7.8 s | 8.0 s |
1000 ft 305 m | 10.0 s | 10.2 s |
1/4 mile 402 m | 11.8 s | 12.0 s |
Trap speed 1/4 mile 402 m | 201 km/h 125 mph | 198 km/h 123 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera GTS 3.8 | 430 hp 321 kW |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 430 hp 321 kW |
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera GTS 3.8 | 440 Nm 325 lb-ft |
| Porsche911 Cabriolet (991)Carrera GTS 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 GTS 3.8 | 1,445 kg 3,186 lb |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 1,515 kg 3,340 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 GTS 3.8 | 304 km/h 189 mph |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 302 km/h 188 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera GTS 3.8 | 4.0 s |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 4.2 s |
The biggest 0-100 km/h difference is between Porsche 911 (991) Carrera GTS 3.8 and Porsche 911 Cabriolet (991) Carrera GTS 3.8: 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 GTS 3.8 | 8.7 L/100 km 27.0 mpg US 32.5 mpg UK |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 8.9 L/100 km 26.4 mpg US 31.7 mpg UK |
Power-to-weight comparison
Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera GTS 3.8 | 298 hp/t 222 kW/t 3.4 kg/hp |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 284 hp/t 212 kW/t 3.5 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| Porsche911 (991)Carrera GTS 3.8 | 736 km 457 mi |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 719 km 447 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| Porsche911 (991)Carrera GTS 3.8 | 430 hp 321 kW | 4.0 s | 304 km/h 189 mph |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 430 hp 321 kW | 4.2 s | 302 km/h 188 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 GTS 3.8 |
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| Porsche911 Cabriolet (991)Carrera GTS 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 GTS 3.8 |
| 8.7 L/100 km 27.0 mpg US 32.5 mpg UK | ||||||
| Porsche911 Cabriolet (991)Carrera GTS 3.8 |
| 8.9 L/100 km 26.4 mpg US 31.7 mpg UK | ||||||
Porsche 911 (991) Carrera GTS 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 GTS 3.8 | 8.7 L/100 km 27.0 mpg US 32.5 mpg UK | 4.0 s |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 8.9 L/100 km 26.4 mpg US 31.7 mpg UK | 4.2 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 GTS 3.8 | 298 hp/t 222 kW/t 3.4 kg/hp | 8.7 L/100 km 27.0 mpg US 32.5 mpg UK |
| Porsche911 Cabriolet (991)Carrera GTS 3.8 | 284 hp/t 212 kW/t 3.5 kg/hp | 8.9 L/100 km 26.4 mpg US 31.7 mpg UK |
Detailed score breakdown
| Vehicle | Porsche911 (991)Carrera GTS 3.8 | Porsche911 Cabriolet (991)Carrera GTS 3.8 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 430 hp 321 kW | 430 hp 321 kW | ||||||||||||||||
| Torque | 440 Nm 325 lb-ft | 440 Nm 325 lb-ft | ||||||||||||||||
| Acceleration | 4.0 s | 4.2 s | ||||||||||||||||
| Top speed | 304 km/h 189 mph | 302 km/h 188 mph | ||||||||||||||||
| Lightness | 1,445 kg 3,186 lb | 1,515 kg 3,340 lb | ||||||||||||||||
| Fuel consumption | 8.7 L/100 km 27.0 mpg US 32.5 mpg UK | 8.9 L/100 km 26.4 mpg US 31.7 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 736 km 457 mi | 719 km 447 mi | ||||||||||||||||
| CO2 score | 202 g/km | 207 g/km | ||||||||||||||||
| Trunk score | 385 L 13.6 cu ft | 285 L 10.1 cu ft | ||||||||||||||||
| Power-to-weight score | 298 hp/t 222 kW/t 3.4 kg/hp | 284 hp/t 212 kW/t 3.5 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 GTS 3.8 | Porsche 911 Cabriolet (991) Carrera GTS 3.8 |
|---|---|---|
| Consumption | 8.7 L/100 km27 mpg US32.5 mpg UK | 8.9 L/100 km26.4 mpg US31.7 mpg UK |
| Cost / 100 km | 15.22 LC100 km | 15.58 LC100 km |
| Cost / 100 mi | 24.50 LC100 mi | 25.07 LC100 mi |
| Annual fuel used | 1,305 L345 US gal287 UK gal | 1,335 L353 US gal294 UK gal |
| Annual fuel cost | 2,284 LC/year | 2,336 LC/year |
Head-to-head comparisons
Porsche 911 (991) Carrera GTS 3.8
- Is 70 kg lighter
- Is 0.2 s quicker from 0-100 km/h
- Has 2 km/h (1 mph) higher top speed
- Uses 0.2 L/100 km less fuel
- Has 14 hp/t better power-to-weight
- Has 17 km (10 mi) more estimated range
- Has 100 L more trunk volume
- Emits 5 g/km less CO2
Pros
- Quickest 0-100 km/h in this comparison
- Highest top speed
- Most powerful
- Highest torque
- Lightest
- Lowest combined fuel consumption
- Best power-to-weight ratio
- Best estimated range
- Largest trunk
Porsche 911 Cabriolet (991) Carrera GTS 3.8
No measurable advantages in the available data.
Cons
- Slowest 0-100 km/h
- Highest combined fuel consumption
- Heaviest
- Lowest top speed
- Smallest trunk
- Highest CO2 emissions
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