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Ford Mustang GT S550 450 vs Porsche Boxster

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

saloon · 2018 vs 2011 · Paris → Marseille · 775 km · 130 km/h
FordPetrol

Mustang GT S550 450

455 ch · 2018

VS
PorschePetrol

Boxster

259 ch · 2011

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

Result · total trip time

AFord Mustang GT S550 450

7h06charging included

1 stop · 171.54 €

GapLess than a minute apart
BPorsche Boxster

7h06charging included

1 stop · 189.47 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasureMustang GT S550 450BoxsterGap
Total time7h067h06Less than a minute apart
Charging stops1 stop1 stopSame
Cost of energy used171.54 €189.47 €17.93 € · Mustang GT S550 450

Visualise the trip

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

FordPetrol
Mustang GT S550 450
100%
538 km
Range
Paris
0 km · departure
Refuel 1
5 min · +55 L · 119.13 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
171.54 €
Cost of energy used
PorschePetrol
Boxster
100%
511 km
Range
Paris
0 km · departure
Refuel 1
5 min · +58 L · 124.94 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
189.47 €
Cost of energy used

Very close result: less than one minute apart on this route. Both vehicles are evenly matched on the motorway over this distance.

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 Mustang GT S550 450 versus 1 stop of 5 min for the Boxster.

Motorway consumption: the Caralogy methodology

The official WLTP figures (12,7 L/100km for Mustang GT S550 450 and 10,7 L/100km for Boxster) 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 10,2 L/100km (Mustang GT S550 450) and 11,3 L/100km (Boxster). 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.

Ford Mustang GT S550 450

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Valence, A7fuel · 2.17 €/L538 km55 L consumed0.221 €/km119.13 €
Valence, A7 → Marseillefuel · 2.17 €/L237 km24 L consumed0.221 €/km52.41 €
Trip total171.54 €

Porsche Boxster

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Valence, A7fuel · 2.17 €/L511 km58 L consumed0.245 €/km124.94 €
Valence, A7 → Marseillefuel · 2.17 €/L264 km30 L consumed0.244 €/km64.53 €
Trip total189.47 €

What produces these figures

WLTP combined consumption
12.7 L/100 km · 10.7 L/100 km
Fuel tank
61 L · 64.0 L

Compare with another vehicle

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

FordPetrol

Mustang GT S550 450

455 ch · 2018

PorschePetrol

Boxster

259 ch · 2011

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Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the Mustang GT S550 450 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 171.54 € (Mustang GT S550 450) and 189.47 € (Boxster). For reference, an equivalent Peugeot 508 1.6 PureTech 180 (~7.2 L/100 km) would cost about 103 € in fuel.