PorschePetrol
Cayenne GTS 958.2
440 ch · 2016
Motorway range comparison
Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.
Paris → Marseille · 130 km/h · Caralogy simulation
| Cayenne GTS 958.2 | Mustang Mach-E RWD | |
|---|---|---|
| Total time | 7h21−45 min | 8h06 |
| Charging stops | 4 stops | 4 stops |
| Total cost | 226,49 € | 73,62 €−152,87 € |
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 Cayenne GTS 958.2 (combustion) makes 4 stops totalling 20 min, the Mustang Mach-E RWD (electric) 4 stops totalling 65 min. Road safety reminder: on a trip of this duration, it is recommended to stop for at least 68 min total (17 min every 2h). The energy cost is 226,49 € for Cayenne GTS 958.2 versus 73,62 € for Mustang Mach-E RWD.
The official WLTP figures (11,5 L/100km for Cayenne GTS 958.2 and 17,0 kWh/100km for Mustang Mach-E RWD) 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 14,4 L/100km (Cayenne GTS 958.2) and 21,3 kWh/100km (Mustang Mach-E RWD). Full methodology: see the dedicated button above the summary.
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 0.18 €/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.
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 | 165 km24 L consumed | 0,293 €/km | 48,30 € |
| Auxerre, A6 → Tournus, A6fuel · 2,03 €/L | 165 km24 L consumed | 0,293 €/km | 48,30 € |
| Tournus, A6 → Valence, A7fuel · 2,03 €/L | 165 km24 L consumed | 0,293 €/km | 48,30 € |
| Valence, A7 → Manosque, A51fuel · 2,03 €/L | 165 km24 L consumed | 0,293 €/km | 48,30 € |
| Manosque, A51 → Marseillefuel · 2,03 €/L | 114 km16 L consumed | 0,292 €/km | 33,27 € |
| Trip total | 226,49 € | ||
| Segment | Distance | €/km | Cost |
|---|---|---|---|
| Paris → Tournus, A6initial energy charged at home · 0,20 €/kWh | 296 km63 kWh consumed | 0,043 €/km | 12,61 € |
| Tournus, A6 → Limonest, A6energy charged at Ionity 99 kW · 0,60 €/kWh | 132 km28 kWh consumed | 0,127 €/km | 16,80 € |
| Limonest, A6 → Valence, A7energy charged at Ionity 99 kW · 0,60 €/kWh | 132 km28 kWh consumed | 0,127 €/km | 16,80 € |
| Valence, A7 → Manosque, A51energy charged at Ionity 99 kW · 0,60 €/kWh | 132 km28 kWh consumed | 0,127 €/km | 16,80 € |
| Manosque, A51 → Marseilleenergy charged at Ionity 103 kW · 0,60 €/kWh | 83 km18 kWh consumed | 0,128 €/km | 10,61 € |
| Trip total | 73,62 € | ||
How many kilometres do you recover depending on the time spent at the charger? Comparison at nominal peak power.
| Charging stop duration | Porsche Cayenne GTS 958.2 | Ford Mustang Mach-E RWD |
|---|---|---|
| 5 minutes | - | - |
| 10 minutes | - | - |
| 20 minutes | - | - |
| Full session 10 → 80 % | - | - |
Replace one of the two with an alternative from the same segment
440 ch · 2016
269 ch · 70 kWh · 2021
The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the Cayenne GTS 958.2 arrives in 7h21 with 4 charging 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.
Electric: 226,49 € (Cayenne GTS 958.2) and 73,62 € (Mustang Mach-E RWD). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.