XpengBEV
X9
543 ch · 95 kWh · 2024
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
| X9 | Z4 M40i G29 | |
|---|---|---|
| Total time | 7h29 | 7h01−28 min |
| Charging stops | 3 stops | 0 stops−3 stops |
| Cost of energy used | 88.57 €−5.96 € | 94.53 € |
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 Z4 M40i G29 (combustion) makes no stop, the X9 (electric) 3 stops totalling 28 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 88,57 € for X9 versus 94,53 € for Z4 M40i G29.
The official WLTP figures (22,0 kWh/100km for X9 and 7,2 L/100km for Z4 M40i G29) 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 26,4 kWh/100km (X9) and 6,0 L/100km (Z4 M40i G29). 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 → Tournus, A6initial energy charged at home · 0,20 €/kWh | 324 km86 kWh consumed | 0,053 €/km | 17,11 € |
| Tournus, A6 → Limonest, A6energy charged at Ionity 285 kW · 0,60 €/kWh | 144 km38 kWh consumed | 0,158 €/km | 22,80 € |
| Limonest, A6 → Montélimar, A7energy charged at Ionity 285 kW · 0,60 €/kWh | 144 km38 kWh consumed | 0,158 €/km | 22,80 € |
| Montélimar, A7 → Marseilleenergy charged at Ionity 255 kW · 0,60 €/kWh | 163 km43 kWh consumed | 0,159 €/km | 25,86 € |
| Trip total | 88,57 € | ||
| Segment | Distance | €/km | Cost (€) |
|---|---|---|---|
| Paris → Marseillefuel · 2,03 €/L | 775 km47 L consumed | 0,122 €/km | 94,53 € |
| Trip total | 94,53 € | ||
How many kilometres do you recover depending on the time spent at the charger? Comparison at nominal peak power.
| Charging stop duration | Xpeng X9 | BMW Z4 M40i G29 |
|---|---|---|
| 5 minutes | ~66 km | - |
| 10 minutes | ~133 km | - |
| 20 minutes | ~265 km | - |
| Full session 10 → 80 % | ~252 km20 min | - |
Replace one of the two with an alternative from the same segment
543 ch · 95 kWh · 2024
340 ch · 2021
The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the Z4 M40i G29 arrives in 7h01 with 0 charging 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: 88,57 € (X9) and 94,53 € (Z4 M40i G29). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.