XpengBEV
P7
424 ch · 75 kWh · 2020
Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.
| Measure | P7 | E 400 e 4MATIC W214 | Gap |
|---|---|---|---|
| Total time | 8h21 | 7h06 | 75 min · E 400 e 4MATIC W214 |
| Charging stops | 3 stops | 1 stop | 2 stops · E 400 e 4MATIC W214 |
| Cost of energy used | 68.98 € | 144.46 € | 75.48 € · P7 |
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 E 400 e 4MATIC W214 versus 3 stops totalling 80 min for the P7.
The official WLTP figures (17,2 kWh/100km for P7 and 23,0 kWh/100km for E 400 e 4MATIC W214) 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 20,6 kWh/100km (P7) and 9,4 L/100km (E 400 e 4MATIC W214). Full methodology: see the assumptions below the controls.
A Peugeot 508 1.6 PureTech 180 (equivalent segment) consumes about 7,2 L/100km on the motorway at 130 km/h. At 1,9 €/L, this Paris → Marseille trip would cost ~103 €. That is 1,5× the electric cost of the P7 and 0,7× that of the E 400 e 4MATIC W214. The gap narrows in winter but never reverses.
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Tournus, A6 | initial energy charged at home · 0.20 €/kWh | 327 km | 68 kWh consumed | 0.041 €/km | 13.51 € |
| Tournus, A6 → Valence, A7 | energy charged at Ionity 75 kW · 0.60 €/kWh | 145 km | 30 kWh consumed | 0.124 €/km | 18.00 € |
| Valence, A7 → Montélimar, A7 | energy charged at Ionity 75 kW · 0.60 €/kWh | 145 km | 30 kWh consumed | 0.124 €/km | 18.00 € |
| Montélimar, A7 → Marseille | energy charged at Ionity 70 kW · 0.60 €/kWh | 157 km | 32 kWh consumed | 0.124 €/km | 19.48 € |
| Trip total | 68.98 € |
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Montélimar, A7 | initial energy charged at home · 0.20 €/kWh | 90 km | 21 kWh consumed | 0.046 €/km | 4.14 € |
| Paris → Montélimar, A7 | fuel · 2.17 €/L | 477 km | 45 L consumed | 0.205 €/km | 97.65 € |
| Montélimar, A7 → Marseille | fuel · 2.17 €/L | 208 km | 20 L consumed | 0.205 €/km | 42.67 € |
| Trip total | 144.46 € |
| Charging stop duration | Xpeng P7 | Mercedes E 400 e 4MATIC W214 |
|---|---|---|
| 5 minutes | ~23 km | - |
| 10 minutes | ~45 km | - |
| 20 minutes | ~90 km | - |
| Full session 10 → 80 % | ~254 km · 61 min | - |
Replace one of the two with an alternative from the same segment
424 ch · 75 kWh · 2020
381 ch · 19.5 kWh · 2024
The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the E 400 e 4MATIC W214 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.
On this trip, the energy used costs 68.98 € (P7) and 144.46 € (E 400 e 4MATIC W214). For reference, an equivalent Peugeot 508 1.6 PureTech 180 (~7.2 L/100 km) would cost about 103 € in fuel.