For the same 12,000 km, fuel costs about €604.80, compared with €617.22 using the project Tesla’s recorded electricity cost. The difference is about €1 a month, too small for a convincing decision on fuel alone. A small change in price, consumption or charging mix can reverse the result.
Use these valuesCost comparison
Fuel vs electricity
Compare your car with Marshal — the real Tesla Model Y LR '23 from this project's public diary.
- Real recorded data
- Real charging diary
- Recorded 3,073 km
- Fuel snapshot 21.10.2026
For the same 25,000 km, fuel costs about €2,387.50, compared with €1,285.88 using the project Tesla’s recorded electricity cost. The diesel is efficient, but high mileage accumulates an annual cost difference. For mostly motorway driving, also test an EV scenario with suitable consumption and more DC charging.
Use these valuesFor the same 6,000 km, fuel costs about €990.00, compared with €308.61 using the project Tesla’s recorded electricity cost. Even with high consumption, low yearly mileage limits the cash saving. Compare the amount with the extra cost of another car; this example alone does not calculate purchase payback.
Use these valuesNo saved calculations yet. Change a value below and your completed calculation will appear here.
Fuel price defaults: 21.10.2026. Change them to your own prices. All inputs are in EUR.
Electricity costs €4.41 less per 100 km
Marshal's electricity costs less per 100 km
What could change the choice?
Your car Diesel
Your cost for 100 km
Marshal (Tesla Model Y LR '23)
Marshal's real cost for 100 km
Lower cost over 25,000 km€1,101.62€4.41 less per 100 km · Comparison estimate
Based on Marshal's real charging diary · 21.08.2026 – 21.10.2026
Real diary data
Marshal's electricity comes from real charging sessions recorded in the public diary, applied to your distance.
Calculation details
- Your car
- €2,387.50 total
- Marshal
- €1,285.88 total
Your cost per 100 km: consumption × price. Marshal: real recorded electricity cost ÷ recorded kilometres, unrounded.
Recorded costs since 21.08.2026, over 3,073 km.
The diary is still growing and may not yet reflect typical use.
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Include other expensesInsurance, maintenance, repairs and accessories — recorded amounts, not estimates.Expand
Your expenses
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Compare each expense
Fuel / electricity
Your car€9.55
Marshal€5.14
Curious how long charging takes?Real diary consumption with an AC/DC slider.
Energy from the diary≈ 19.7 kWh / 100 km
19.7 kWh over 100 kmAC · home / overnight≈ 2 h 12 min70% of the energy · 13.8 kWhAverage 6 kW · 18 chargesEstimated durations: 1If all charging were AC: 3 h 9 min
DC · fast charging on trips≈ 5 min30% of the energy · 5.9 kWhAverage 74 kW · 10 chargesIf all charging were DC: 16 min
70/30 is an editable energy split, not a measured average. Home charging can happen overnight; DC is time at a charger.
This changes charging time only. Costs above still use the diary prices.
How charging time is calculated
Energy: charged kWh ÷ matching kilometres. Power for each type: kWh ÷ charging hours. Time: needed kWh × AC/DC share ÷ average kW.
Energy uses 22 of 31 charges with kWh and distance (3,044 km). 2 have estimated distance.
Charging-log estimate, not measured driving consumption or time waiting beside the car.
Where Marshal's real numbers come from
Marshal is this project's real Tesla Model Y LR '23. Recorded costs since 21.08.2026, over 3,073 km.
Electricity: your kilometres × the recorded electricity cost per km. Other costs: recorded amounts, unchanged. Per 100 km: the selected total ÷ your kilometres × 100.
Only checked categories count, for both cars. Purchase, import, initial repairs and depreciation are excluded. Diary records may cover a different period from your expenses.
The diary is still growing and may not yet reflect typical use.
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