The real cost of a car: budget beyond the purchase price

Build an ownership budget that includes resale, energy and recurring expenses without counting the same cost twice.

Start with your ownership period

A car that fits your purchase budget may still strain your running budget. Choose how long you expect to keep it and a realistic annual distance before comparing models. Separate essential needs from equipment you can live without. Use the same ownership period for every alternative.

Separate ownership cost from cash flow

Depreciation is the purchase price minus the expected resale value at the end of the period. It is not a bill you pay each month, but it is part of the cost of using the asset. A deposit and instalments concern cash flow. Do not add all instalments and then add the full vehicle price again: separate loan principal from interest and fees.

Build three scenarios

Start with a base case supported by real quotes. Repeat the calculation with lower resale value and higher maintenance, then with greater annual distance. The goal is to understand what changes your decision, not predict the future exactly. Record each quote’s date and market. Do not transfer insurance or energy prices from one country to another.

Turn the numbers into a decision

Review total cost, monthly average and cost per kilometre together. Cost per kilometre may fall as usage increases while actual spending rises. List items for which you have no quote; zero is not a substitute for missing information. After purchase, compare the budget with your garage records and update your assumptions.

Your next step

Use the guide to organize your decision, then open the related tool.