PorscheDiesel
Cayenne Diesel 958.2
262 ch · 2015
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 Diesel 958.2 | Q8 SUV | |
|---|---|---|
| Total time | 7h11 | 7h06−5 min |
| Charging stops | 2 stops | 1 stop−1 stop |
| Total cost | 124,92 €−46,66 € | 171,58 € |
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 Q8 SUV versus 2 stops totalling 10 min for the Cayenne Diesel 958.2.
The official WLTP figures (10,2 L/100km for Cayenne Diesel 958.2 and 8,9 L/100km for Q8 SUV) 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 8,1 L/100km (Cayenne Diesel 958.2) and 11,1 L/100km (Q8 SUV). 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 → Tournus, A6fuel · 1,99 €/L | 293 km24 L consumed | 0,161 €/km | 47,28 € |
| Tournus, A6 → Montélimar, A7fuel · 1,99 €/L | 293 km24 L consumed | 0,161 €/km | 47,28 € |
| Montélimar, A7 → Marseillefuel · 1,99 €/L | 188 km15 L consumed | 0,161 €/km | 30,36 € |
| Trip total | 124,92 € | ||
| Segment | Distance | €/km | Cost |
|---|---|---|---|
| Paris → Montélimar, A7fuel · 1,99 €/L | 607 km68 L consumed | 0,221 €/km | 134,32 € |
| Montélimar, A7 → Marseillefuel · 1,99 €/L | 168 km19 L consumed | 0,222 €/km | 37,25 € |
| Trip total | 171,58 € | ||
Replace one of the two with an alternative from the same segment
262 ch · 2015
231 ch · 2026
On Paris → Marseille (775 km at 130 km/h), the Q8 SUV 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: 124,92 € (Cayenne Diesel 958.2) and 171,58 € (Q8 SUV). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.