BMWPetrol
M8 Competition Gran Coupe F92
625 ch · 2021
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
| M8 Competition Gran Coupe F92 | P7 | |
|---|---|---|
| Total time | 7h06−75 min | 8h21 |
| Charging stops | 1 stop−2 stops | 3 stops |
| Total cost | 124,92 € | 55,78 €−69,14 € |
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 M8 Competition Gran Coupe F92 (combustion) makes 1 stop of 5 min, the P7 (electric) 3 stops totalling 80 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 124,92 € for M8 Competition Gran Coupe F92 versus 55,78 € for P7.
The official WLTP figures (11,3 L/100km for M8 Competition Gran Coupe F92 and 17,2 kWh/100km for P7) 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 (M8 Competition Gran Coupe F92) and 20,6 kWh/100km (P7). 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 → Aix-en-Provence, A7fuel · 1,99 €/L | 756 km61 L consumed | 0,161 €/km | 121,79 € |
| Aix-en-Provence, A7 → Marseillefuel · 1,99 €/L | 19 km2 L consumed | 0,165 €/km | 3,13 € |
| Trip total | 124,92 € | ||
| Segment | Distance | €/km | Cost |
|---|---|---|---|
| Paris → Tournus, A6initial energy charged at home · 0,21 €/kWh | 327 km68 kWh consumed | 0,043 €/km | 14,17 € |
| Tournus, A6 → Valence, A7energy charged at Ionity 75 kW · 0,45 €/kWh | 145 km30 kWh consumed | 0,093 €/km | 13,50 € |
| Valence, A7 → Montélimar, A7energy charged at Ionity 75 kW · 0,45 €/kWh | 145 km30 kWh consumed | 0,093 €/km | 13,50 € |
| Montélimar, A7 → Marseilleenergy charged at Ionity 70 kW · 0,45 €/kWh | 157 km32 kWh consumed | 0,093 €/km | 14,61 € |
| Trip total | 55,78 € | ||
How many kilometres do you recover depending on the time spent at the charger? Comparison at nominal peak power.
| Charging stop duration | BMW M8 Competition Gran Coupe F92 | Xpeng P7 |
|---|---|---|
| 5 minutes | — | ~23 km |
| 10 minutes | — | ~45 km |
| 20 minutes | — | ~90 km |
| Full session 10 → 80 % | — | ~254 km61 min |
Replace one of the two with an alternative from the same segment
625 ch · 2021
424 ch · 75 kWh · 2020
The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the M8 Competition Gran Coupe F92 arrives in 7h06 with 1 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: 124,92 € (M8 Competition Gran Coupe F92) and 55,78 € (P7). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.