An old cheap diesel or a used electric car – which is cheaper?
When your current car is compared, what counts is its value today, not what it once cost – the Passat here is worth €2,200, its auto24 asking price, and that is what selling it would bring. Over 5 years the Renault Zoe costs €10,111 less than the Volkswagen Passat Variant (€20,600 against €30,710). Over 5 years the Nissan Leaf costs €6,132 less than the Volkswagen Passat Variant (€24,579 against €30,710). Over 5 years the Toyota Corolla costs €2,115 less than the Volkswagen Passat Variant (€28,596 against €30,710).
The Volkswagen Passat Variant stays dearer than the Renault Zoe even at 60,000 km a year. The Volkswagen Passat Variant stays dearer than the Nissan Leaf even at 60,000 km a year. The Volkswagen Passat Variant stays dearer than the Toyota Corolla even at 60,000 km a year.
For the 18-year-old Volkswagen Passat Variant the calculator budgets €800 a year for smaller repairs and, with the chance of a major one, about €1,360 a year. Owners of old cars themselves report €200–800 a year, until something big gives – put in your own figure if you know better.
Open this comparison in the calculator →
Assumptions: 20,000 km a year, 5 years, bought with cash, 80% of charging at home, fuel and electricity prices rising 5% a year; prices as of 12 October 2026. Every assumption can be changed in the calculator.
Total cost over 5 years at 20,000 km a year
| Cost | Volkswagen Passat Variant Diesel | Renault Zoe Electric | Nissan Leaf Electric | Toyota Corolla Full hybrid |
|---|---|---|---|---|
| Purchase price | €2,200 | €8,600 | €16,900 | €22,200 |
| Depreciation | €752 | €2,581 | €5,713 | €6,087 |
| Interest and cost of capital | €178 | €726 | €1,384 | €1,897 |
| Energy | €15,884 | €4,278 | €4,554 | €11,229 |
| Preheating | €280 | €217 | €227 | €255 |
| Car tax and registration fee | €310 | €250 | €250 | €250 |
| Insurance | €1,331 | €1,591 | €2,295 | €1,492 |
| Service and inspection | €3,225 | €1,620 | €1,565 | €2,782 |
| Repair risk after warranty | €6,800 | €5,060 | €4,485 | €2,780 |
| Battery replacement risk after its warranty | €0 | €900 | €324 | €0 |
| Tyres | €1,950 | €2,075 | €2,481 | €1,825 |
| Other costs | €0 | €1,300 | €1,300 | €0 |
| Total cost | €30,710 | €20,600 | €24,579 | €28,596 |
| Per month on average | €512 | €343 | €410 | €477 |
| Cost per km | €0.31/km | €0.21/km | €0.25/km | €0.29/km |
| Value at the end | €1,448 | €6,019 | €11,187 | €16,113 |
How mileage changes the answer
Total cost over 5 years at different yearly distances. The cheapest is in bold.
| Distance per year | Volkswagen Passat Variant | Renault Zoe | Nissan Leaf | Toyota Corolla |
|---|---|---|---|---|
| 10,000 km | €21,508 | €17,528 | €19,359 | €18,635 |
| 20,000 km | €30,710 | €20,600 | €24,579 | €28,596 |
| 30,000 km | €40,102 | €24,229 | €29,799 | €39,024 |
Questions and answers
At what yearly distance does replacing an old diesel pay?
The Volkswagen Passat Variant stays dearer than the Renault Zoe even at 60,000 km a year. The Volkswagen Passat Variant stays dearer than the Nissan Leaf even at 60,000 km a year. The Volkswagen Passat Variant stays dearer than the Toyota Corolla even at 60,000 km a year. The more you drive, the more cheap energy outweighs the newer car’s depreciation.
What if I can’t charge at home?
Without home charging (90% at public AC posts, 10% at fast chargers) the totals are: Renault Zoe €21,545, Nissan Leaf €25,668, Toyota Corolla €28,596 and Volkswagen Passat Variant €30,710. Public charging costs roughly twice as much per kilowatt-hour as charging at home.
How much do an old diesel’s repairs cost?
For the 18-year-old Volkswagen Passat Variant the calculator budgets €800 a year for smaller repairs and, with the chance of a major one, about €1,360 a year. Owners of old cars themselves report €200–800 a year, until something big gives – put in your own figure if you know better.
Will a used electric car’s battery last?
The calculator estimates a used electric car’s battery health from its age and mileage (Renault Zoe ≈ 86% and Nissan Leaf ≈ 89%) and counts the replacement risk after the battery warranty on its own line. A measured value can be typed in.
More guides
- Car tax calculatorAnnual tax and registration fee for your car, with the 2028 and 2031 increases.
- Electric car or diesel?Which is cheaper over five years, and at what mileage the electric car pays off.
- Electric car or hybrid?Total cost of compact crossovers: electric against full hybrid.
- Hybrid or petrol car?How much a full hybrid saves on fuel, and whether that covers its higher price.
- Is a plug-in hybrid worth it?A plug-in hybrid against a hybrid, a diesel and an EV – and what happens if you never plug it in.
- How far does €123 take you?One tank of diesel, a fast charger and home charging – and what the car really costs once energy isn’t the only cost.
- EV charging costWhat 100 km costs charged at home, at public posts and at fast chargers, for popular EVs.
- How we calculateEvery cost line, the data sources and the simplifications.