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Porsche 911 Carrera S (PDK) 991.1 vs Porsche Boxster Spyder

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

sports car · 2011 vs 2011 · Paris → Marseille · 775 km · 130 km/h
PorschePetrol

911 Carrera S (PDK) 991.1

390 ch · 2011

VS
PorschePetrol

Boxster Spyder

320 ch · 2011

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

Result · total trip time

APorsche 911 Carrera S (PDK) 991.1

7h06charging included

1 stop · 192.12 €

GapLess than a minute apart
BPorsche Boxster Spyder

7h06charging included

1 stop · 192.12 €

Paris → Marseille · 130 km/h · Caralogy simulation
Measure911 Carrera S (PDK) 991.1Boxster SpyderGap
Total time7h067h06Less than a minute apart
Charging stops1 stop1 stopSame
Cost of energy used192.12 €192.12 €Same

Visualise the trip

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

PorschePetrol
911 Carrera S (PDK) 991.1
100%
504 km
Range
Paris
0 km · departure
Refuel 1
5 min · +58 L · 124.94 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
192.12 €
Cost of energy used
PorschePetrol
Boxster Spyder
100%
426 km
Range
Paris
0 km · departure
Refuel 1
5 min · +49 L · 105.72 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
192.12 €
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 911 Carrera S (PDK) 991.1 versus 1 stop of 5 min for the Boxster Spyder.

Motorway consumption: the Caralogy methodology

The official WLTP figures (10,9 L/100km for 911 Carrera S (PDK) 991.1 and 10,9 L/100km for Boxster Spyder) 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 11,4 L/100km (911 Carrera S (PDK) 991.1) and 11,4 L/100km (Boxster Spyder). 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 911 Carrera S (PDK) 991.1

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Valence, A7fuel · 2.17 €/L504 km58 L consumed0.248 €/km124.94 €
Valence, A7 → Marseillefuel · 2.17 €/L271 km31 L consumed0.248 €/km67.18 €
Trip total192.12 €

Porsche Boxster Spyder

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Limonest, A6fuel · 2.17 €/L426 km49 L consumed0.248 €/km105.72 €
Limonest, A6 → Marseillefuel · 2.17 €/L349 km40 L consumed0.248 €/km86.40 €
Trip total192.12 €

What produces these figures

WLTP combined consumption
10.9 L/100 km · 10.9 L/100 km
Fuel tank
64.0 L · 54.1 L

Compare with another vehicle

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

PorschePetrol

911 Carrera S (PDK) 991.1

390 ch · 2011

PorschePetrol

Boxster Spyder

320 ch · 2011

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Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the 911 Carrera S (PDK) 991.1 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 192.12 € (911 Carrera S (PDK) 991.1) and 192.12 € (Boxster Spyder). For reference, an equivalent BMW M340i (~9.5 L/100 km) would cost about 136 € in fuel.