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  • SpecsBoxster · 218i

Porsche Boxster vs BMW 218i Convertible F44

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

sports car · 2010 vs 2020 · Paris → Marseille · 775 km · 130 km/h
PorschePetrol

Boxster

259 ch · 2010

VS
BMWPetrol

218i Convertible F44

136 ch · 2020

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

Result · total trip time

APorsche Boxster

7h06charging included

1 stop · 136.22 €

GapLess than a minute apart
BBMW 218i Convertible F44

7h06charging included

1 stop · 102.59 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasureBoxster218i Convertible F44Gap
Total time7h067h06Less than a minute apart
Charging stops1 stop1 stopSame
Cost of energy used136.22 €102.59 €33.63 € · 218i Convertible F44

Visualise the trip

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

PorschePetrol
Boxster
100%
711 km
Range
Paris
0 km · departure
Refuel 1
5 min · +58 L · 124.94 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
136.22 €
Cost of energy used
BMWPetrol
218i Convertible F44
100%
767 km
Range
Paris
0 km · departure
Refuel 1
5 min · +47 L · 101.56 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
102.59 €
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 Boxster versus 1 stop of 5 min for the 218i Convertible F44.

Motorway consumption: the Caralogy methodology

The official WLTP figures (10,1 L/100km for Boxster and 7,4 L/100km for 218i Convertible F44) 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 8,1 L/100km (Boxster) and 6,1 L/100km (218i Convertible F44). 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 Boxster

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Manosque, A51fuel · 2.17 €/L711 km58 L consumed0.176 €/km124.94 €
Manosque, A51 → Marseillefuel · 2.17 €/L64 km5 L consumed0.176 €/km11.28 €
Trip total136.22 €

BMW 218i Convertible F44

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Aix-en-Provence, A7fuel · 2.17 €/L767 km47 L consumed0.132 €/km101.56 €
Aix-en-Provence, A7 → Marseillefuel · 2.17 €/L8 km0 L consumed0.129 €/km1.03 €
Trip total102.59 €

What produces these figures

WLTP combined consumption
10.1 L/100 km · 7.4 L/100 km
Fuel tank
64.0 L · 52 L

Compare with another vehicle

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

PorschePetrol

Boxster

259 ch · 2010

BMWPetrol

218i Convertible F44

136 ch · 2020

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Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the Boxster 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 136.22 € (Boxster) and 102.59 € (218i Convertible F44). For reference, an equivalent BMW M340i (~9.5 L/100 km) would cost about 136 € in fuel.