BMWPetrolMost economical
840i G15
Annual energy cost · 15 000 km
2 272€
15,14 € / 100 km
Equivalent to 1 142 L of petrol 95 per year
- Weighted consumption
- 7,6 L/100km
- Fuel price
- 1,99 €/L
- Fuel used
- 1141,5 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
Fuel price
Petrol 95 : 1,99 €/L·Diesel : 1,75 €/L
Typical annual usage : Mix 30% city / 50% road / 20% motorway
Annual energy cost · 15 000 km
15,14 € / 100 km
Equivalent to 1 142 L of petrol 95 per year
Annual energy cost · 15 000 km
19,78 € / 100 km
Equivalent to 1 491 L of petrol 95 per year
BMW 840i G15 costs 696 €/an less in energy than Porsche 718 Cayman, over 15 000 km for this driving mix.
≈ 350 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
696 €
≈ 350 L petrol 95
3 years
2 087 €
≈ 1049 L petrol 95
5 years
3 478 €
≈ 1748 L petrol 95
10 years
6 956 €
≈ 3495 L petrol 95
Cumulative savings for BMW 840i G15 versus Porsche 718 Cayman. Excluding purchase, insurance, maintenance and depreciation.
Projection over 15 000 km/year.
| Fuel | km/year | €/km | Annual cost |
|---|---|---|---|
| Annual fuel1,99 €/L | 15 000 km | 0,151 €/km | 2 272 € |
| Fuel | km/year | €/km | Annual cost |
|---|---|---|---|
| Annual fuel1,99 €/L | 15 000 km | 0,198 €/km | 2 967 € |
On a 100 km mixed trip, the BMW 840i is about 25% cheaper than the Porsche 718 Cayman with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.
The BMW 840i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.