Car comparison

Porsche 911 (991 II) Carrera 4S 3.0vsPorsche 911 (991) Carrera S 3.8

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Porsche 911 (991 II)

Carrera 4S 3.0

420 hp2981 ccGasolineAWDManualTwin-turboCoupe2015-2018
VS

Porsche 911 (991)

Carrera S 3.8

400 hp3800 ccGasolineRWDManualNaturally aspiratedCoupe2011-2015

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Porsche 911 (991 II) Carrera 4S 3.0

  • Quickest 0-100 km/h
    4.2 s
  • Fastest top speed
    305 km/h
    190 mph
  • Most powerful
    420 hp
    313 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    8.9 L/100 km
    26.4 mpg US
    31.7 mpg UK
  • Lowest city consumption
    12.4 L/100 km
    19.0 mpg US
    22.8 mpg UK
  • Lowest highway consumption
    6.8 L/100 km
    34.6 mpg US
    41.5 mpg UK
  • Lowest CO2 emissions
    204 g/km
  • Best estimated range
    764 km
    475 mi
  • Best overall score
    69/100
  • Best performance score
    82/100
  • Best economy score
    83/100

Specification comparison

Specification comparison
ModelPorsche911 (991 II)Carrera 4S 3.0Porsche911 (991)Carrera S 3.8
Power
420hp313kW
400hp298kW
Torque
500Nm369lb-ft
440Nm325lb-ft
Curb weight
1,490kg3,285lb
1,415kg3,120lb
Gross weight
1,950kg4,299lb
1,830kg4,034lb
Top speed
305 km/h
190 mph
304 km/h
189 mph
To 99% top speed
60.8s99% target: 302 km/h / 188 mph
Calculated
62.9s99% target: 301 km/h / 187 mph
Calculated
0-100 km/h
4.2s
4.5s
0-200 km/h
12.3s
Calculated
13.1s
Calculated
0-60 mph
4.0s
Calculated
4.3s
Calculated
Fuel consumption
8.9L/100 km26.4mpg US31.7mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Fuel consumption city
12.4L/100 km19mpg US22.8mpg UK
13.3L/100 km17.7mpg US21.2mpg UK
Fuel consumption highway
6.8L/100 km34.6mpg US41.5mpg UK
7.3L/100 km32.2mpg US38.7mpg UK
Quarter mile
12.0s
Calculated
12.4s
Calculated
Power-to-weight
282hp/t210kW/t128hp/1000 lb
Calculated
283hp/t211kW/t128hp/1000 lb
Calculated
Torque-to-weight
336Nm/t225lb-ft/ton
Calculated
311Nm/t208lb-ft/ton
Calculated
Estimated range
764km475mi
Calculated
674km419mi
Calculated
Displacement
2,981cc182cu in
3,800cc232cu in
Length
4,499mm177in
4,491mm177in
Width
1,852mm73in
1,808mm71in
Height
1,298mm51in
1,295mm51in
Wheelbase
2,450mm96in
2,450mm96in
Front track
1,543mm61in
1,538mm61in
Rear track
1,558mm61in
1,516mm60in
Trunk volume
125L
340L
Max trunk volume
260L
-
Doors
2
2
Seats
4
4
Fuel tank
68L
64L
CO2 emissions
204g/km
223g/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 4S 3.0Porsche 911 (991) Carrera S 3.8PowerTorque
  • Porsche 911 (991 II) Carrera 4S 3.0: Power / Torque
  • Porsche 911 (991) Carrera S 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 (991 II)Carrera 4S 3.06,500 rpm1,700-5,000 rpm6,750 rpm
Porsche911 (991)Carrera S 3.87,400 rpm5,600 rpm7,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 (991 II)Carrera 4S 3.0Porsche911 (991)Carrera S 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.0 s
4.3 s
0-100 km/h
0-62 mph
4.2 s
4.5 s
0-200 km/h
0-124 mph
12.3 s
13.1 s
Top speed
305 km/h
190 mph
304 km/h
189 mph
Drag race simulation
60 ft
18 m
2.1 s
2.2 s
330 ft
101 m
5.4 s
5.6 s
1/8 mile
201 m
8.0 s
8.2 s
1000 ft
305 m
10.2 s
10.5 s
1/4 mile
402 m
12.0 s
12.4 s
Trap speed
1/4 mile
402 m
198 km/h
123 mph
194 km/h
121 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4S 3.0
420 hp
313 kW
Porsche911 (991)Carrera S 3.8
400 hp
298 kW

Porsche 911 (991 II) Carrera 4S 3.0 has 20 hp more than Porsche 911 (991) Carrera S 3.8.

The biggest power difference is between Porsche 911 (991) Carrera S 3.8 and Porsche 911 (991 II) Carrera 4S 3.0: 20 hp (15 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4S 3.0
500 Nm
369 lb-ft
Porsche911 (991)Carrera S 3.8
440 Nm
325 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4S 3.0
1,490 kg
3,285 lb
Porsche911 (991)Carrera S 3.8
1,415 kg
3,120 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4S 3.0
305 km/h
190 mph
Porsche911 (991)Carrera S 3.8
304 km/h
189 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4S 3.04.2 s
Porsche911 (991)Carrera S 3.84.5 s

The biggest 0-100 km/h difference is between Porsche 911 (991 II) Carrera 4S 3.0 and Porsche 911 (991) Carrera S 3.8: 0.3 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4S 3.0
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Porsche911 (991)Carrera S 3.8
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

The biggest fuel consumption difference is between Porsche 911 (991 II) Carrera 4S 3.0 and Porsche 911 (991) Carrera S 3.8: 0.6 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4S 3.0
282 hp/t
210 kW/t
3.5 kg/hp
Porsche911 (991)Carrera S 3.8
283 hp/t
211 kW/t
3.5 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
Porsche911 (991 II)Carrera 4S 3.0
764 km
475 mi
Porsche911 (991)Carrera S 3.8
674 km
419 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 (991 II)Carrera 4S 3.0
420 hp
313 kW
4.2 s
305 km/h
190 mph
Porsche911 (991)Carrera S 3.8
400 hp
298 kW
4.5 s
304 km/h
189 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
Porsche911 (991 II)Carrera 4S 3.0
Power
420 hp
313 kW
0-100 km/h4.2 s
Top speed
305 km/h
190 mph
Doors/seats
2 doors
4 seats
Trunk
125 L
4.4 cu ft
Length
4,499 mm
177.1 in
Height
1,298 mm
51.1 in
Porsche911 (991)Carrera S 3.8
Power
400 hp
298 kW
0-100 km/h4.5 s
Top speed
304 km/h
189 mph
Doors/seats
2 doors
4 seats
Trunk
340 L
12.0 cu ft
Length
4,491 mm
176.8 in
Height
1,295 mm
51.0 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
Porsche911 (991 II)Carrera 4S 3.0
Power
420 hp
313 kW
0-100 km/h4.2 s
Top speed
305 km/h
190 mph
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Porsche911 (991)Carrera S 3.8
Power
400 hp
298 kW
0-100 km/h4.5 s
Top speed
304 km/h
189 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Porsche 911 (991 II) Carrera 4S 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.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
Porsche911 (991 II)Carrera 4S 3.0
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
4.2 s
Porsche911 (991)Carrera S 3.8
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
4.5 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Porsche911 (991 II)Carrera 4S 3.0
282 hp/t
210 kW/t
3.5 kg/hp
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Porsche911 (991)Carrera S 3.8
283 hp/t
211 kW/t
3.5 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 (991 II)Carrera 4S 3.0Porsche911 (991)Carrera S 3.8
Power
420 hp
313 kW
400 hp
298 kW
Torque
500 Nm
369 lb-ft
440 Nm
325 lb-ft
Acceleration
4.2 s
4.5 s
Top speed
305 km/h
190 mph
304 km/h
189 mph
Lightness
1,490 kg
3,285 lb
1,415 kg
3,120 lb
Fuel consumption
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
125 L
4.4 cu ft
Length
4,499 mm
177.1 in
Height
1,298 mm
51.1 in
Doors/seats
2 doors
4 seats
Trunk
340 L
12.0 cu ft
Length
4,491 mm
176.8 in
Height
1,295 mm
51.0 in
Range score
764 km
475 mi
674 km
419 mi
CO2 score
204 g/km
223 g/km
Trunk score
125 L
4.4 cu ft
340 L
12.0 cu ft
Power-to-weight score
282 hp/t
210 kW/t
3.5 kg/hp
283 hp/t
211 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

Fuel cost and annual usage
VehiclePorsche 911 (991 II) Carrera 4S 3.0Porsche 911 (991) Carrera S 3.8
Consumption8.9 L/100 km26.4 mpg US31.7 mpg UK9.5 L/100 km24.8 mpg US29.7 mpg UK
Cost / 100 km15.58 LC100 km16.63 LC100 km
Cost / 100 mi25.07 LC100 mi26.76 LC100 mi
Annual fuel used1,335 L353 US gal294 UK gal1,425 L376 US gal313 UK gal
Annual fuel cost2,336 LC/year2,494 LC/year

Head-to-head comparisons

Porsche 911 (991 II) Carrera 4S 3.0

  • Has 20 hp more
  • Has 60 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Has 1 km/h (1 mph) higher top speed
  • Uses 0.6 L/100 km less fuel
  • Has 90 km (56 mi) more estimated range
  • Emits 19 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Heaviest
  • Smallest trunk

Porsche 911 (991) Carrera S 3.8

  • Is 75 kg lighter
  • Has 1 hp/t better power-to-weight
  • Has 215 L more trunk volume

Pros

  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 (991 II) Carrera 4S 3.0
Porsche 911 (991) Carrera S 3.8
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Porsche 911 (991 II) Carrera 4S 3.0 vs Porsche 911 (991) Carrera S 3.8 - car comparison - FastVsFaster