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Porsche Panamera 4S vs Porsche 911 Carrera Cabriolet 991.2

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

limousine · 2010 vs 2017 · Paris → Marseille · 775 km · 130 km/h
PorschePetrolPlus rapide

Panamera 4S

440 ch · 2010

VS
PorschePetrol

911 Carrera Cabriolet 991.2

375 ch · 2017

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

Result · total trip time

APorsche Panamera 4S

7h06charging included

1 stop · 239.95 €

Gap15 minin favour of Panamera 4S
BPorsche 911 Carrera Cabriolet 991.2

7h21charging included

4 stops · 136.22 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasurePanamera 4S911 Carrera Cabriolet 991.2Gap
Total time7h067h2115 min · Panamera 4S
Charging stops1 stop4 stops3 stops · Panamera 4S
Cost of energy used239.95 €136.22 €103.73 € · 911 Carrera Cabriolet 991.2

Visualise the trip

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

PorschePetrolFastest
Panamera 4S
100%
630 km
Range
Paris
0 km · departure
Refuel 1
5 min · +90 L · 195.17 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
239.95 €
Cost of energy used
PorschePetrol
911 Carrera Cabriolet 991.2
100%
188 km
Range
Paris
0 km · departure
Refuel 1
5 min · +15 L · 33.01 €
Refuel 2
5 min · +15 L · 33.01 €
Refuel 3
5 min · +15 L · 33.01 €
Refuel 4
5 min · +15 L · 33.01 €
Marseille
775 km · Arrival 7h21
4
Stops
7h21
Duration
136.22 €
Cost of energy used

The 15-minute lead of the Panamera 4S 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 Panamera 4S versus 4 stops totalling 20 min for the 911 Carrera Cabriolet 991.2.

Motorway consumption: the Caralogy methodology

The official WLTP figures (12,3 L/100km for Panamera 4S and 10,2 L/100km for 911 Carrera Cabriolet 991.2) 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 14,3 L/100km (Panamera 4S) and 8,1 L/100km (911 Carrera Cabriolet 991.2). 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.

Porsche Panamera 4S

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Montélimar, A7fuel · 2.17 €/L630 km90 L consumed0.310 €/km195.17 €
Montélimar, A7 → Marseillefuel · 2.17 €/L145 km21 L consumed0.309 €/km44.78 €
Trip total239.95 €

Porsche 911 Carrera Cabriolet 991.2

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Auxerre, A6fuel · 2.17 €/L188 km15 L consumed0.176 €/km33.01 €
Auxerre, A6 → Tournus, A6fuel · 2.17 €/L188 km15 L consumed0.176 €/km33.01 €
Tournus, A6 → Montélimar, A7fuel · 2.17 €/L188 km15 L consumed0.176 €/km33.01 €
Montélimar, A7 → Aix-en-Provence, A7fuel · 2.17 €/L188 km15 L consumed0.176 €/km33.01 €
Aix-en-Provence, A7 → Marseillefuel · 2.17 €/L24 km2 L consumed0.175 €/km4.20 €
Trip total136.22 €

What produces these figures

WLTP combined consumption
12.3 L/100 km · 10.2 L/100 km
Fuel tank
99.9 L · 16.9 L

Compare with another vehicle

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

PorschePetrol

Panamera 4S

440 ch · 2010

PorschePetrol

911 Carrera Cabriolet 991.2

375 ch · 2017

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Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the Panamera 4S 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 239.95 € (Panamera 4S) and 136.22 € (911 Carrera Cabriolet 991.2). For reference, an equivalent Mercedes S 450 (~9.0 L/100 km) would cost about 129 € in fuel.