MercedesBEV
GLC 400 4MATIC X254
489 ch · 94 kWh · 2025
Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.
| Measure | GLC 400 4MATIC X254 | Panamera | Gap |
|---|---|---|---|
| Total time | 7h11 | 7h16 | 5 min · GLC 400 4MATIC X254 |
| Charging stops | 1 stop | 3 stops | 2 stops · GLC 400 4MATIC X254 |
| Cost of energy used | 42.89 € | 141.27 € | 98.38 € · GLC 400 4MATIC X254 |
Both vehicles drove at 130 km/h for the entire trip. The GLC 400 4MATIC X254 (electric) makes 1 stop of 10 min, the Panamera (combustion) 3 stops totalling 15 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 42,89 € for GLC 400 4MATIC X254 versus 141,27 € for Panamera.
The official WLTP figures (13,2 kWh/100km for GLC 400 4MATIC X254 and 9,8 L/100km for Panamera) 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 16,5 kWh/100km (GLC 400 4MATIC X254) and 8,4 L/100km (Panamera). Full methodology: see the assumptions below the controls.
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 0.20 €/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.
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Valence, A7 | initial energy charged at home · 0.20 €/kWh | 513 km | 85 kWh consumed | 0.033 €/km | 16.93 € |
| Valence, A7 → Marseille | energy charged at Ionity 289 kW · 0.60 €/kWh | 262 km | 43 kWh consumed | 0.099 €/km | 25.96 € |
| Trip total | 42.89 € |
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Beaune, A6 | fuel · 2.17 €/L | 254 km | 21 L consumed | 0.182 €/km | 46.29 € |
| Beaune, A6 → Valence, A7 | fuel · 2.17 €/L | 254 km | 21 L consumed | 0.182 €/km | 46.29 € |
| Valence, A7 → Aix-en-Provence, A7 | fuel · 2.17 €/L | 254 km | 21 L consumed | 0.182 €/km | 46.29 € |
| Aix-en-Provence, A7 → Marseille | fuel · 2.17 €/L | 13 km | 1 L consumed | 0.185 €/km | 2.41 € |
| Trip total | 141.27 € |
| Charging stop duration | Mercedes GLC 400 4MATIC X254 | Porsche Panamera |
|---|---|---|
| 5 minutes | ~117 km | - |
| 10 minutes | ~233 km | - |
| 20 minutes | ~467 km | - |
| Full session 10 → 80 % | ~399 km · 18 min | - |
Replace one of the two with an alternative from the same segment
489 ch · 94 kWh · 2025
335 ch · 2018
The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the GLC 400 4MATIC X254 arrives in 7h11 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.
On this trip, the energy used costs 42.89 € (GLC 400 4MATIC X254) and 141.27 € (Panamera). For reference, an equivalent Peugeot 3008 1.2 PureTech 130 (~7.8 L/100 km) would cost about 112 € in fuel.