MercedesPHEV
E 400 e 4MATIC W214
381 ch · 19.5 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
| E 400 e 4MATIC W214 | A6 Sportback e-tron | |
|---|---|---|
| Total time | 7h06−24 min | 7h30 |
| Charging stops | 1 stop−1 stop | 2 stops |
| Total cost | 133,03 € | 39,69 €−93,34 € |
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 gap is built at the stops: 1 stop of 5 min for the E 400 e 4MATIC W214 versus 2 stops totalling 30 min for the A6 Sportback e-tron.
The official WLTP figures (23,0 kWh/100km for E 400 e 4MATIC W214 and 14,0 kWh/100km for A6 Sportback e-tron) 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 16,5 kWh/100km (A6 Sportback e-tron). Full methodology: see the dedicated button above the summary.
A BMW 530i (equivalent segment) consumes about 8,0 L/100km on the motorway at 130 km/h. At 1,9 €/L, this Paris → Marseille trip would cost ~115 €. That is 0,9× the electric cost of the E 400 e 4MATIC W214 and 2,9× that of the A6 Sportback e-tron. The gap narrows in winter but never reverses.
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 → Montélimar, A7initial energy charged at home · 0,21 €/kWh | 90 km21 kWh consumed | 0,048 €/km | 4,35 € |
| Paris → Montélimar, A7fuel · 1,99 €/L | 477 km45 L consumed | 0,188 €/km | 89,55 € |
| Montélimar, A7 → Marseillefuel · 1,99 €/L | 208 km20 L consumed | 0,188 €/km | 39,13 € |
| Trip total | 133,03 € | ||
| Segment | Distance | €/km | Cost |
|---|---|---|---|
| Paris → Limonest, A6initial energy charged at home · 0,21 €/kWh | 452 km75 kWh consumed | 0,035 €/km | 15,69 € |
| Limonest, A6 → Manosque, A51energy charged at Ionity 117 kW · 0,45 €/kWh | 201 km33 kWh consumed | 0,074 €/km | 14,94 € |
| Manosque, A51 → Marseilleenergy charged at Ionity 116 kW · 0,45 €/kWh | 122 km20 kWh consumed | 0,074 €/km | 9,06 € |
| Trip total | 39,69 € | ||
How many kilometres do you recover depending on the time spent at the charger? Comparison at nominal peak power.
| Charging stop duration | Mercedes E 400 e 4MATIC W214 | Audi A6 Sportback e-tron |
|---|---|---|
| 5 minutes | - | - |
| 10 minutes | - | - |
| 20 minutes | - | - |
| Full session 10 → 80 % | - | - |
Replace one of the two with an alternative from the same segment
381 ch · 19.5 kWh · 2024
286 ch · 83 kWh · 2026
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 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: 133,03 € (E 400 e 4MATIC W214) and 39,69 € (A6 Sportback e-tron). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.