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A718vsB218iPetrol
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  • Specs718 · 218i

Porsche 718 Boxster S vs BMW 218i Convertible F44

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

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

718 Boxster S

350 ch · 2018

VS
BMWPetrolPlus rapide

218i Convertible F44

136 ch · 2020

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

Result · total trip time

APorsche 718 Boxster S

7h16charging included

3 stops · 437.25 €

Gap10 minin favour of 218i Convertible
BBMW 218i Convertible F44

7h06charging included

1 stop · 102.59 €

Paris → Marseille · 130 km/h · Caralogy simulation
Measure718 Boxster S218i Convertible F44Gap
Total time7h167h0610 min · 218i Convertible F44
Charging stops3 stops1 stop2 stops · 218i Convertible F44
Cost of energy used437.25 €102.59 €334.66 € · 218i Convertible F44

Visualise the trip

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

PorschePetrol
718 Boxster S
100%
221 km
Range
Paris
0 km · departure
Refuel 1
5 min · +58 L · 124.94 €
Refuel 2
5 min · +58 L · 124.94 €
Refuel 3
5 min · +58 L · 124.94 €
Marseille
775 km · Arrival 7h16
3
Stops
7h16
Duration
437.25 €
Cost of energy used
BMWPetrolFastest
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

The 10-minute lead of the 218i Convertible F44 does not come from driving speed, but from 2 fewer charging stops on this route (1 vs 3).

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 218i Convertible F44 versus 3 stops totalling 15 min for the 718 Boxster S.

Motorway consumption: the Caralogy methodology

The official WLTP figures (10,7 L/100km for 718 Boxster S 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 26,0 L/100km (718 Boxster S) 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 718 Boxster S

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Beaune, A6fuel · 2.17 €/L221 km58 L consumed0.565 €/km124.94 €
Beaune, A6 → Limonest, A6fuel · 2.17 €/L221 km58 L consumed0.565 €/km124.94 €
Limonest, A6 → Manosque, A51fuel · 2.17 €/L221 km58 L consumed0.565 €/km124.94 €
Manosque, A51 → Marseillefuel · 2.17 €/L111 km29 L consumed0.562 €/km62.43 €
Trip total437.25 €

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
10.7 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

718 Boxster S

350 ch · 2018

BMWPetrol

218i Convertible F44

136 ch · 2020

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A3 allstreet vs 218i Convertible

Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the 218i Convertible F44 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 437.25 € (718 Boxster S) and 102.59 € (218i Convertible F44). For reference, an equivalent BMW M340i (~9.5 L/100 km) would cost about 136 € in fuel.