Car comparison

Porsche 911 Cabriolet (992) Turbo S 3.8vsFerrari Roma Spider 3.9 V8

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

New comparison

Porsche 911 Cabriolet (992)

Turbo S 3.8

650 hp3745 ccGasolineAWDDual-clutchTwin-turboCabriolet / convertible2020-2024
VS

Ferrari Roma Spider

3.9 V8

620 hp3855 ccGasolineRWDDual-clutchTwin-turboCabriolet / convertible2023-present

Comparison overview

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

Best choices

Porsche 911 Cabriolet (992) Turbo S 3.8

  • Quickest 0-100 km/h
    2.8 s
  • Fastest top speed
    330 km/h
    205 mph
  • Most powerful
    650 hp
    485 kW
  • Highest torque
    800 Nm
    590 lb-ft
  • Best performance score
    94/100
  • Best economy score
    77/100

Ferrari Roma Spider 3.9 V8

  • Lightest
    1,556 kg
    3,430 lb
  • Best power-to-weight
    398 hp/t
    297 kW/t
    2.5 kg/hp
  • Largest trunk
    255 L
  • Best overall score
    78/100
  • Best practicality score
    43/100

Specification comparison

Specification comparison
ModelPorsche911 Cabriolet (992)Turbo S 3.8FerrariRoma Spider3.9 V8
Power
650hp485kW
620hp462kW
Torque
800Nm590lb-ft
760Nm561lb-ft
Curb weight
1,710kg3,770lb
1,556kg3,430lb
Gross weight
2,080kg4,586lb
-
Top speed
330 km/h
205 mph
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Calculated
To 99% top speed
70.3s99% target: 327 km/h / 203 mph
Calculated
56.8s99% target: 327 km/h / 203 mph
Calculated
0-100 km/h
2.8s
3.4s
0-200 km/h
9.3s
9.7s
0-60 mph
2.7s
Calculated
3.3s
Calculated
Fuel consumption
11.3L/100 km20.8mpg US25.0mpg UK
-
Fuel consumption city
15.9L/100 km14.8mpg US17.8mpg UK
-
Fuel consumption highway
8.6L/100 km27.4mpg US32.8mpg UK
-
Quarter mile
10.6s
Calculated
11.0s
Calculated
Power-to-weight
380hp/t283kW/t172hp/1000 lb
Calculated
398hp/t297kW/t181hp/1000 lb
Calculated
Torque-to-weight
468Nm/t313lb-ft/ton
Calculated
488Nm/t327lb-ft/ton
Calculated
Estimated range
593km368mi
Calculated
-
Displacement
3,745cc229cu in
3,855cc235cu in
Length
4,535mm179in
4,656mm183in
Width
1,900mm75in
1,974mm78in
Height
1,301mm51in
1,306mm51in
Wheelbase
2,450mm96in
2,670mm105in
Front track
1,583mm62in
1,652mm65in
Rear track
1,600mm63in
1,679mm66in
Trunk volume
128L
255L
Doors
2
2
Seats
4
4
Fuel tank
67L
80L

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 Cabriolet (992) Turbo S 3.8Ferrari Roma Spider 3.9 V8PowerTorque
  • Porsche 911 Cabriolet (992) Turbo S 3.8: Power / Torque
  • Ferrari Roma Spider 3.9 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 Cabriolet (992)Turbo S 3.86,750 rpm2,500-4,000 rpm7,200 rpm
FerrariRoma Spider3.9 V85,750-7,500 rpm3,000-5,750 rpm7,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 Cabriolet (992)Turbo S 3.8FerrariRoma Spider3.9 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
2.7 s
3.3 s
0-100 km/h
0-62 mph
2.8 s
3.4 s
0-200 km/h
0-124 mph
9.3 s
9.7 s
0-200 mph
0-322 km/h
53.4 s
44.6 s
Top speed
330 km/h
205 mph
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Likely limited
Drag race simulation
60 ft
18 m
1.6 s
1.9 s
330 ft
101 m
4.5 s
4.9 s
1/8 mile
201 m
6.8 s
7.3 s
1000 ft
305 m
8.9 s
9.3 s
1/4 mile
402 m
10.6 s
11.0 s
Trap speed
1/4 mile
402 m
212 km/h
132 mph
214 km/h
133 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo S 3.8
650 hp
485 kW
FerrariRoma Spider3.9 V8
620 hp
462 kW

Porsche 911 Cabriolet (992) Turbo S 3.8 has 30 hp more than Ferrari Roma Spider 3.9 V8.

The biggest power difference is between Ferrari Roma Spider 3.9 V8 and Porsche 911 Cabriolet (992) Turbo S 3.8: 30 hp (22 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo S 3.8
800 Nm
590 lb-ft
FerrariRoma Spider3.9 V8
760 Nm
561 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo S 3.8
1,710 kg
3,770 lb
FerrariRoma Spider3.9 V8
1,556 kg
3,430 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 Cabriolet (992)Turbo S 3.8
330 km/h
205 mph
FerrariRoma Spider3.9 V8
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo S 3.82.8 s
FerrariRoma Spider3.9 V83.4 s

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (992) Turbo S 3.8 and Ferrari Roma Spider 3.9 V8: 0.6 s.

Power-to-weight comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (992)Turbo S 3.8
380 hp/t
283 kW/t
2.6 kg/hp
FerrariRoma Spider3.9 V8
398 hp/t
297 kW/t
2.5 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 Cabriolet (992)Turbo S 3.8
650 hp
485 kW
2.8 s
330 km/h
205 mph
FerrariRoma Spider3.9 V8
620 hp
462 kW
3.4 s
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 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 Cabriolet (992)Turbo S 3.8
Power
650 hp
485 kW
0-100 km/h2.8 s
Top speed
330 km/h
205 mph
Doors/seats
2 doors
4 seats
Trunk
128 L
4.5 cu ft
Length
4,535 mm
178.5 in
Height
1,301 mm
51.2 in
FerrariRoma Spider3.9 V8
Power
620 hp
462 kW
0-100 km/h3.4 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Doors/seats
2 doors
4 seats
Trunk
255 L
9.0 cu ft
Length
4,656 mm
183.3 in
Height
1,306 mm
51.4 in

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 Cabriolet (992)Turbo S 3.8FerrariRoma Spider3.9 V8
Power
650 hp
485 kW
620 hp
462 kW
Torque
800 Nm
590 lb-ft
760 Nm
561 lb-ft
Acceleration
2.8 s
3.4 s
Top speed
330 km/h
205 mph
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Lightness
1,710 kg
3,770 lb
1,556 kg
3,430 lb
Fuel consumption
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
-
Practicality
Doors/seats
2 doors
4 seats
Trunk
128 L
4.5 cu ft
Length
4,535 mm
178.5 in
Height
1,301 mm
51.2 in
Doors/seats
2 doors
4 seats
Trunk
255 L
9.0 cu ft
Length
4,656 mm
183.3 in
Height
1,306 mm
51.4 in
Range score
593 km
368 mi
-
Trunk score
128 L
4.5 cu ft
255 L
9.0 cu ft
Power-to-weight score
380 hp/t
283 kW/t
2.6 kg/hp
398 hp/t
297 kW/t
2.5 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 Cabriolet (992) Turbo S 3.8
Consumption11.3 L/100 km20.8 mpg US25 mpg UK
Cost / 100 km19.78 LC100 km
Cost / 100 mi31.82 LC100 mi
Annual fuel used1,695 L448 US gal373 UK gal
Annual fuel cost2,966 LC/year

Head-to-head comparisons

Porsche 911 Cabriolet (992) Turbo S 3.8

  • Has 30 hp more
  • Has 40 Nm more
  • Is 0.6 s quicker from 0-100 km/h

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque

Cons

  • Heaviest
  • Smallest trunk

Ferrari Roma Spider 3.9 V8

  • Is 154 kg lighter
  • Has 18 hp/t better power-to-weight
  • Has 127 L more trunk volume

Pros

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

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 Cabriolet (992) Turbo S 3.8
Ferrari Roma Spider 3.9 V8
Compare selected cars
2 vehicles selected

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