MercedesPHEV
E 400 e 4MATIC W214
381 ch · 19.5 kWh · 2024
Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.
| Measure | E 400 e 4MATIC W214 | 420i xDrive G22 | Gap |
|---|---|---|---|
| Total time | 7h06 | 7h06 | Less than a minute apart |
| Charging stops | 1 stop | 1 stop | Same |
| Cost of energy used | 144.46 € | 151.36 € | 6.90 € · E 400 e 4MATIC W214 |
Both vehicles drove at 130 km/h for the entire trip. The E 400 e 4MATIC W214 (plug-in hybrid) makes 1 stop of 5 min, the 420i xDrive G22 (combustion) 1 stop of 5 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 144,46 € for E 400 e 4MATIC W214 versus 151,36 € for 420i xDrive G22.
The official WLTP figures (23,0 kWh/100km for E 400 e 4MATIC W214 and 7,5 L/100km for 420i xDrive G22) 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 9,4 L/100km (E 400 e 4MATIC W214) and 9,0 L/100km (420i xDrive G22). 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 → 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 € |
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Montélimar, A7 | fuel · 2.17 €/L | 590 km | 53 L consumed | 0.195 €/km | 115.23 € |
| Montélimar, A7 → Marseille | fuel · 2.17 €/L | 185 km | 17 L consumed | 0.195 €/km | 36.13 € |
| Trip total | 151.36 € |
Replace one of the two with an alternative from the same segment
381 ch · 19.5 kWh · 2024
184 ch · 2021
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 144.46 € (E 400 e 4MATIC W214) and 151.36 € (420i xDrive G22). For reference, an equivalent BMW 530i (~8.0 L/100 km) would cost about 115 € in fuel.