BMWPetrol
840i Convertible G15
Annual energy cost · 15 000 km
2 358€
15,72 € / 100 km
Equivalent to 1 185 L of petrol 95 per year
- Weighted consumption
- 7,9 L/100km
- Fuel price
- 1,99 €/L
- Fuel used
- 1185,0 L per year
Consumption comparison
Same car, two powertrains. The simulator below calculates the gap based on your mileage and charging type.
Annual mileage
15 000 km/an
Simulated driving mix
Drag anywhere on the bar to adjust
Charging type
Typical annual usage : Mix 30% city / 50% road / 20% motorway · charging home (0,21 €/kWh)
Annual energy cost · 15 000 km
15,72 € / 100 km
Equivalent to 1 185 L of petrol 95 per year
Annual energy cost · 15 000 km
3,69 € / 100 km
Equivalent to 278 L of petrol 95 per year
Xpeng P7i costs 1 805 €/an less in energy than BMW 840i Convertible G15, over 15 000 kmwith home for this driving mix.
≈ 907 L of petrol 95 saved per year
Cumulative projection by annual mileage. The cheaper-to-run vehicle widens the gap year after year.
1 year
1 805 €
≈ 907 L petrol 95
3 years
5 414 €
≈ 2720 L petrol 95
5 years
9 023 €
≈ 4534 L petrol 95
10 years
18 045 €
≈ 9068 L petrol 95
Cumulative savings for Xpeng P7i versus BMW 840i Convertible G15. Excluding purchase, insurance, maintenance and depreciation.
Projection over 15 000 km/year, by proportion of each charging type.
| Fuel | km/year | €/km | Annual cost |
|---|---|---|---|
| Annual fuel1,99 €/L | 15 000 km | 0,157 €/km | 2 358 € |
| Charging mix | km/year | €/km | Annual cost |
|---|---|---|---|
| 100% Homeoff-peak rate · 0,21 €/kWh | 15 000 km2 535 kWh | 0,037 €/km | 554 € |
| 100% AC stationpublic AC rate · 0,30 €/kWh | 15 000 km2 535 kWh | 0,053 €/km | 791 € |
| 100% Fast DCDC motorway rate · 0,45 €/kWh | 15 000 km2 535 kWh | 0,079 €/km | 1 186 € |
| Typical mix80% home · 15% AC · 5% DC | 15 000 km2 535 kWh | 0,041 €/km | 621 € |
| Annual total (typical mix) | 621 € | ||
On a 100 km mixed trip, the Xpeng P7i is about 75% cheaper than the BMW 840i Convertible with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.
The declared range of the Xpeng P7i is 510 km (WLTP/EPA). In real-world conditions, expect 10-20% less.
The Xpeng P7i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.