The True Cost of Owning a Car (It’s Not Just Fuel)
June 11, 2026 · 7 min read
Ask a driver what their car costs and they’ll quote you fuel. But across studies of real ownership costs, fuel is typically only 30–50% of the total — the rest hides in categories that arrive once or twice a year and get mentally filed as “bad luck” rather than “the price of having a car”. Here are the seven categories, and a worked example of what they add up to.
The seven cost categories
| Category | Cadence | Why it gets underestimated |
|---|---|---|
| Fuel | Weekly | It isn’t — it’s the only one people see. |
| Insurance | Annual | Paid once, forgotten for twelve months. |
| Scheduled maintenance | 1–2× a year | Feels optional until it isn’t. |
| Unplanned repairs | Irregular | Filed as bad luck, not as a cost of ownership. |
| Tyres | Every 3–5 years | Big, rare, and always “surprising”. |
| Tax, fees, parking, tolls | Mixed | Many small drips that never get summed. |
| Depreciation | Continuous | Invisible until the day you sell. |
What a normal year actually looks like
A five-year-old compact car, 13,000 km a year, no disasters — just an ordinary year:
- Fuel: €1,400
- Insurance + road tax: €750
- Annual service: €280
- One repair (worn suspension arm): €340
- Two new tyres: €220
- Parking and tolls: €310
- Depreciation (≈ €11,000 car losing ~10%): €1,100
Total: €4,400 — of which fuel is just 32%. Cash costs alone (excluding depreciation) are €3,300, still more than double the fuel bill. A driver who “spends about €120 a month on the car” is actually spending €275–€365 a month depending on how you count.
Why the real number is worth knowing
Underestimating ownership cost distorts real decisions: whether a second car is affordable, whether the old car’s repair bills have crossed the replace-it threshold, whether a job that pays €150 more but doubles the commute is actually a raise. Each of those questions needs the true per-kilometre figure — see how to calculate your cost per kilometre for the method.
Finding your own number
Memory is the wrong tool for this — the once-a-year categories are precisely the ones memory drops. The fix is to record expenses as they happen, in whatever tool you’ll actually keep using (we compare the options in the best way to track car expenses). After six months of honest logging, your real number — total spent, by category, per kilometre — stops being a guess. Vroom keeps that running total for you for free: log fuel, repairs, and bills as they happen and the totals, category breakdown, and cost per kilometre are always current.