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  • SpecsRoma · 718

Ferrari Roma vs Porsche 718 Cayman

Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.

sports car · 2020 vs 2018 · Paris → Marseille · 775 km · 130 km/h
FerrariPetrolPlus rapide

Roma

620 ch · 2020

VS
PorschePetrol

718 Cayman

300 ch · 2018

Simulation trip
Assumptions: 130 km/h · start réservoir plein · mild weather

Result · total trip time

AFerrari Roma

7h06charging included

1 stop · 187.18 €

Gap15 minin favour of Roma
BPorsche 718 Cayman

7h21charging included

4 stops · 470.89 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasureRoma718 CaymanGap
Total time7h067h2115 min · Roma
Charging stops1 stop4 stops3 stops · Roma
Cost of energy used187.18 €470.89 €283.71 € · Roma

Visualise the trip

Both vehicles drive at 130 km/h. The difference comes from charging stops.

FerrariPetrolFastest
Roma
100%
647 km
Range
Paris
0 km · departure
Refuel 1
5 min · +72 L · 156.24 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
187.18 €
Cost of energy used
PorschePetrol
718 Cayman
100%
174 km
Range
Paris
0 km · departure
Refuel 1
5 min · +49 L · 105.72 €
Refuel 2
5 min · +49 L · 105.72 €
Refuel 3
5 min · +49 L · 105.72 €
Refuel 4
5 min · +49 L · 105.72 €
Marseille
775 km · Arrival 7h21
4
Stops
7h21
Duration
470.89 €
Cost of energy used

The 15-minute lead of the Roma does not come from driving speed, but from 3 fewer charging stops on this route (1 vs 4).

Both vehicles drove at 130 km/h for the entire trip. The gap is built at the stops: 1 stop of 5 min for the Roma versus 4 stops totalling 20 min for the 718 Cayman.

Motorway consumption: the Caralogy methodology

The official WLTP figures (10,6 L/100km for Roma and 9,8 L/100km for 718 Cayman) are measured on a mixed cycle averaging ~46 km/h. At a steady 130 km/h, aerodynamic drag weighs much more heavily - it grows with the square of speed. Caralogy calculates a motorway consumption specific to each vehicle based on its aerodynamic profile (SCx), weight and power curve - not a uniform correction factor. For this trip, the simulation yields 11,1 L/100km (Roma) and 28,0 L/100km (718 Cayman). Full methodology: see the assumptions below the controls.

Energy cost breakdown for your trip Paris → Marseille

The cost per kilometre depends on the electricity rate applied to each segment - based on the energy source used at that point of the trip.

Ferrari Roma

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Montélimar, A7fuel · 2.17 €/L647 km72 L consumed0.241 €/km156.24 €
Montélimar, A7 → Marseillefuel · 2.17 €/L128 km14 L consumed0.242 €/km30.94 €
Trip total187.18 €

Porsche 718 Cayman

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Auxerre, A6fuel · 2.17 €/L174 km49 L consumed0.608 €/km105.72 €
Auxerre, A6 → Tournus, A6fuel · 2.17 €/L174 km49 L consumed0.608 €/km105.72 €
Tournus, A6 → Valence, A7fuel · 2.17 €/L174 km49 L consumed0.608 €/km105.72 €
Valence, A7 → Manosque, A51fuel · 2.17 €/L174 km49 L consumed0.608 €/km105.72 €
Manosque, A51 → Marseillefuel · 2.17 €/L79 km22 L consumed0.608 €/km48.02 €
Trip total470.89 €

What produces these figures

WLTP combined consumption
10.6 L/100 km · 9.8 L/100 km
Fuel tank
80 L · 54.1 L

Compare with another vehicle

Replace one of the two with an alternative from the same segment

FerrariPetrol

Roma

620 ch · 2020

PorschePetrol

718 Cayman

300 ch · 2018

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Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the Roma arrives in 7h06 with 1 fuel stop.

WLTP consumption does not reflect motorway reality. Aerodynamic drag grows with the square of speed, so real consumption is 15 to 25 % higher than WLTP combined. Caralogy calculates a highway consumption specific to each vehicle based on its aerodynamic profile (SCx), weight and power curve.

Total time = driving time + charging time. Driving time is calculated at an average speed of 130 km/h on the motorway (adjustable). Charging time is calculated based on the real power curve of each vehicle, respecting the optimal 10 → 80 % range and the maximum power accepted by the chargers on the route.

No. The displayed cost covers only the energy consumed during the trip: kWh × energy rate, with a mix of home charging and DC fast chargers. Battery wear is a long-term ownership cost, not a trip cost.

On this trip, the energy used costs 187.18 € (Roma) and 470.89 € (718 Cayman). For reference, an equivalent BMW M340i (~9.5 L/100 km) would cost about 136 € in fuel.