TeslaBEV
Model 3 Performance
450 ch · 74 kWh · 2019
Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.
| Measure | Model 3 Performance | 840i xDrive Convertible G15 | Gap |
|---|---|---|---|
| Total time | 7h24 | 7h01 | 23 min · 840i xDrive Convertible G15 |
| Charging stops | 3 stops | 0 stops | 3 stops · 840i xDrive Convertible G15 |
| Cost of energy used | 64.37 € | 105.56 € | 41.19 € · Model 3 Performance |
Both vehicles drove at 130 km/h for the entire trip. The 840i xDrive Convertible G15 (combustion) makes no stop, the Model 3 Performance (electric) 3 stops totalling 23 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 64,37 € for Model 3 Performance versus 105,56 € for 840i xDrive Convertible G15.
The official WLTP figures (16,6 kWh/100km for Model 3 Performance and 8,0 L/100km for 840i xDrive Convertible G15) 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 19,6 kWh/100km (Model 3 Performance) and 6,7 L/100km (840i xDrive Convertible G15). 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 0.18 €/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.
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Tournus, A6 | initial energy charged at home · 0.20 €/kWh | 340 km | 67 kWh consumed | 0.039 €/km | 13.33 € |
| Tournus, A6 → Valence, A7 | energy charged at Supercharger 254 kW · 0.60 €/kWh | 151 km | 30 kWh consumed | 0.118 €/km | 17.76 € |
| Valence, A7 → Montélimar, A7 | energy charged at Supercharger 254 kW · 0.60 €/kWh | 151 km | 30 kWh consumed | 0.118 €/km | 17.76 € |
| Montélimar, A7 → Marseille | energy charged at Supercharger 238 kW · 0.60 €/kWh | 132 km | 26 kWh consumed | 0.118 €/km | 15.52 € |
| Trip total | 64.37 € |
| Segment | Energy used | Distance | Consumption | €/km | Cost (€) |
|---|---|---|---|---|---|
| Paris → Marseille | fuel · 2.03 €/L | 775 km | 52 L consumed | 0.136 €/km | 105.56 € |
| Trip total | 105.56 € |
| Charging stop duration | Tesla Model 3 Performance | BMW 840i xDrive Convertible G15 |
|---|---|---|
| 5 minutes | ~75 km | - |
| 10 minutes | ~149 km | - |
| 20 minutes | ~298 km | - |
| Full session 10 → 80 % | ~265 km · 19 min | - |
Replace one of the two with an alternative from the same segment
450 ch · 74 kWh · 2019
333 ch · 2021
The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the 840i xDrive Convertible G15 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: 64,37 € (Model 3 Performance) and 105,56 € (840i xDrive Convertible G15). An equivalent Peugeot 508 1.6 PureTech 180 (~7,2 L/100 km) would cost about 103 € in motorway fuel. Electric costs less in energy but adds charging stops.