BMWDiesel
220d Convertible F22
190 ch · 2018
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
| 220d Convertible F22 | 318d Steptronic G20 | |
|---|---|---|
| Total time | 7h01 | 7h01 |
| Charging stops | 0 stops | 0 stops |
| Total cost | 72,01 € | 65,75 €−6,26 € |
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: no stop for the 220d Convertible F22 versus no stop for the 318d Steptronic G20.
The official WLTP figures (5,1 L/100km for 220d Convertible F22 and 4,5 L/100km for 318d Steptronic G20) 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 4,6 L/100km (220d Convertible F22) and 4,2 L/100km (318d Steptronic G20). Full methodology: see the dedicated button above the summary.
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 → Marseillefuel · 2,02 €/L | 775 km36 L consumed | 0,093 €/km | 72,01 € |
| Trip total | 72,01 € | ||
| Segment | Distance | €/km | Cost |
|---|---|---|---|
| Paris → Marseillefuel · 2,02 €/L | 775 km33 L consumed | 0,085 €/km | 65,75 € |
| Trip total | 65,75 € | ||
Replace one of the two with an alternative from the same segment
190 ch · 2018
150 ch · 2019
On Paris → Marseille (775 km at 130 km/h), the 220d Convertible F22 arrives in 7h01 with 0 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: 72,01 € (220d Convertible F22) and 65,75 € (318d Steptronic G20). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.