PorschePetrol
911 Targa 4 991.1
355 ch · 2014
Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.
Paris → Marseille · 130 km/h · Caralogy simulation
| 911 Targa 4 991.1 | 218i Convertible F44 | |
|---|---|---|
| Total time | 7h26 | 7h06−20 min |
| Charging stops | 5 stops | 1 stop−4 stops |
| Cost of energy used | 173.71 € | 96.11 €−77.60 € |
Both vehicles drive at 130 km/h. The difference comes from charging stops.
Analysis
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 5 stops totalling 25 min for the 911 Targa 4 991.1.
The official WLTP figures (10,5 L/100km for 911 Targa 4 991.1 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 11,0 L/100km (911 Targa 4 991.1) and 6,1 L/100km (218i Convertible F44). Full methodology: see the dedicated button above the summary.
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.
| Segment | Distance | €/km | Cost (€) |
|---|---|---|---|
| Paris → Auxerre, A6fuel · 2,03 €/L | 146 km16 L consumed | 0,224 €/km | 32,75 € |
| Auxerre, A6 → Tournus, A6fuel · 2,03 €/L | 146 km16 L consumed | 0,224 €/km | 32,75 € |
| Tournus, A6 → Limonest, A6fuel · 2,03 €/L | 146 km16 L consumed | 0,224 €/km | 32,75 € |
| Limonest, A6 → Montélimar, A7fuel · 2,03 €/L | 146 km16 L consumed | 0,224 €/km | 32,75 € |
| Montélimar, A7 → Aix-en-Provence, A7fuel · 2,03 €/L | 146 km16 L consumed | 0,224 €/km | 32,75 € |
| Aix-en-Provence, A7 → Marseillefuel · 2,03 €/L | 44 km5 L consumed | 0,226 €/km | 9,95 € |
| Trip total | 173,71 € | ||
| Segment | Distance | €/km | Cost (€) |
|---|---|---|---|
| Paris → Aix-en-Provence, A7fuel · 2,03 €/L | 767 km47 L consumed | 0,124 €/km | 95,14 € |
| Aix-en-Provence, A7 → Marseillefuel · 2,03 €/L | 8 km0 L consumed | 0,121 €/km | 0,97 € |
| Trip total | 96,11 € | ||
Replace one of the two with an alternative from the same segment
355 ch · 2014
136 ch · 2020
On Paris → Marseille (775 km at 130 km/h), the 218i Convertible F44 arrives in 7h06 with 1 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.
Electric: 173,71 € (911 Targa 4 991.1) and 96,11 € (218i Convertible F44). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.