PorschePetrol
911 Carrera 4 991.1
Annual energy cost · 15 000 km
3 227€
21,51 € / 100 km
Equivalent to 1 622 L of petrol 95 per year
- Weighted consumption
- 10,8 L/100km
- Fuel price
- 1,99 €/L
- Fuel used
- 1621,5 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
21,51 € / 100 km
Equivalent to 1 622 L of petrol 95 per year
Annual energy cost · 15 000 km
8,07 € / 100 km
Equivalent to 608 L of petrol 95 per year
BMW 420d Convertible G22 costs 2 017 €/an less in energy than Porsche 911 Carrera 4 991.1, over 15 000 km for this driving mix.
≈ 1013 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
2 017 €
≈ 1013 L petrol 95
3 years
6 050 €
≈ 3040 L petrol 95
5 years
10 083 €
≈ 5067 L petrol 95
10 years
20 167 €
≈ 10134 L petrol 95
Cumulative savings for BMW 420d Convertible G22 versus Porsche 911 Carrera 4 991.1. 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 | 0,215 €/km | 3 227 € |
| Fuel | km/year | €/km | Annual cost |
|---|---|---|---|
| Annual fuel1,75 €/L | 15 000 km | 0,081 €/km | 1 210 € |
On a 100 km mixed trip, the BMW 420d Convertible is about 60% cheaper than the Porsche 911 Carrera 4 with default parameters. This ratio shifts with your actual energy prices — simulate for your profile.
The BMW 420d Convertible is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.