PorschePetrol
Cayman
279 ch · 2014
Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.
| Measure | Cayman | ID.7 Pro S | Gap |
|---|---|---|---|
| Total time | 7h21 | 7h22 | 1 min · Cayman |
| Charging stops | 4 stops | 2 stops | 2 stops · ID.7 Pro S |
| Cost of energy used | 504.52 € | 52.19 € | 452.33 € · ID.7 Pro S |
Both vehicles drove at 130 km/h for the entire trip. The Cayman (combustion) makes 4 stops totalling 20 min, the ID.7 Pro S (electric) 2 stops totalling 21 min. Road safety reminder: on a trip of this duration, it is recommended to stop for at least 51 min total (17 min every 2h). The energy cost is 504,52 € for Cayman versus 52,19 € for ID.7 Pro S.
The official WLTP figures (9,7 L/100km for Cayman and 14,9 kWh/100km for ID.7 Pro S) 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 30,0 L/100km (Cayman) and 17,9 kWh/100km (ID.7 Pro S). Full methodology: see the assumptions below the controls.
On a 200 km round trip (e.g. a weekend getaway), the electric or plug-in hybrid vehicle completes the entire journey on home energy at 0.20 €/kWh - with no charging stop. The time advantage of the combustion car on long-distance motorways disappears entirely, and the economic advantage of electric strengthens considerably.
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Auxerre, A6 | fuel · 2.17 €/L | 192 km | 58 L consumed | 0.651 €/km | 124.94 € |
| Auxerre, A6 → Limonest, A6 | fuel · 2.17 €/L | 192 km | 58 L consumed | 0.651 €/km | 124.94 € |
| Limonest, A6 → Montélimar, A7 | fuel · 2.17 €/L | 192 km | 58 L consumed | 0.651 €/km | 124.94 € |
| Montélimar, A7 → Aix-en-Provence, A7 | fuel · 2.17 €/L | 192 km | 58 L consumed | 0.651 €/km | 124.94 € |
| Aix-en-Provence, A7 → Marseille | fuel · 2.17 €/L | 7 km | 2 L consumed | 0.681 €/km | 4.76 € |
| Trip total | 504.52 € |
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Limonest, A6 | initial energy charged at home · 0.20 €/kWh | 433 km | 77 kWh consumed | 0.036 €/km | 15.49 € |
| Limonest, A6 → Montélimar, A7 | energy charged at Ionity 188 kW · 0.60 €/kWh | 192 km | 34 kWh consumed | 0.107 €/km | 20.64 € |
| Montélimar, A7 → Marseille | energy charged at Ionity 193 kW · 0.60 €/kWh | 150 km | 27 kWh consumed | 0.107 €/km | 16.06 € |
| Trip total | 52.19 € |
| Charging stop duration | Porsche Cayman | Volkswagen ID.7 Pro S |
|---|---|---|
| 5 minutes | - | ~65 km |
| 10 minutes | - | ~130 km |
| 20 minutes | - | ~261 km |
| Full session 10 → 80 % | - | ~337 km · 28 min |
Replace one of the two with an alternative from the same segment
279 ch · 2014
211 ch · 86 kWh · 2024
The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the Cayman arrives in 7h21 with 4 fuel stops.
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 504.52 € (Cayman) and 52.19 € (ID.7 Pro S). For reference, an equivalent BMW M340i (~9.5 L/100 km) would cost about 136 € in fuel.