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  • SpecsM140i · Boxster

BMW M140i xDrive F20LCI vs Porsche Boxster Spyder

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

compact · 2018 vs 2010 · Paris → Marseille · 775 km · 130 km/h
BMWPetrol

M140i xDrive F20LCI

340 ch · 2018

VS
PorschePetrol

Boxster Spyder

324 ch · 2010

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

Result · total trip time

ABMW M140i xDrive F20LCI

7h06charging included

1 stop · 114.36 €

GapLess than a minute apart
BPorsche Boxster Spyder

7h06charging included

1 stop · 136.22 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasureM140i xDrive F20LCIBoxster SpyderGap
Total time7h067h06Less than a minute apart
Charging stops1 stop1 stopSame
Cost of energy used114.36 €136.22 €21.86 € · M140i xDrive F20LCI

Visualise the trip

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

BMWPetrol
M140i xDrive F20LCI
100%
688 km
Range
Paris
0 km · departure
Refuel 1
5 min · +47 L · 101.56 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
114.36 €
Cost of energy used
PorschePetrol
Boxster Spyder
100%
601 km
Range
Paris
0 km · departure
Refuel 1
5 min · +49 L · 105.72 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
136.22 €
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 M140i xDrive F20LCI versus 1 stop of 5 min for the Boxster Spyder.

Motorway consumption: the Caralogy methodology

The official WLTP figures (8,0 L/100km for M140i xDrive F20LCI and 10,1 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 6,8 L/100km (M140i xDrive F20LCI) and 8,1 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.

BMW M140i xDrive F20LCI

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Manosque, A51fuel · 2.17 €/L688 km47 L consumed0.148 €/km101.56 €
Manosque, A51 → Marseillefuel · 2.17 €/L87 km6 L consumed0.147 €/km12.80 €
Trip total114.36 €

Porsche Boxster Spyder

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Montélimar, A7fuel · 2.17 €/L601 km49 L consumed0.176 €/km105.72 €
Montélimar, A7 → Marseillefuel · 2.17 €/L174 km14 L consumed0.175 €/km30.50 €
Trip total136.22 €

What produces these figures

WLTP combined consumption
8.0 L/100 km · 10.1 L/100 km
Fuel tank
52 L · 54.1 L

Compare with another vehicle

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

BMWPetrol

M140i xDrive F20LCI

340 ch · 2018

PorschePetrol

Boxster Spyder

324 ch · 2010

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Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the M140i xDrive F20LCI 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 114.36 € (M140i xDrive F20LCI) and 136.22 € (Boxster Spyder). For reference, an equivalent Peugeot 308 1.2 PureTech 130 (~6.8 L/100 km) would cost about 97 € in fuel.