Ownership costs
How to compare the true cost of two cars
A fair comparison holds the ownership period, distance and accounting boundaries constant for both vehicles.
Gather equivalent inputs
Use on-the-road purchase quotations with comparable equipment. Record your expected annual distance, realistic fuel or energy consumption, local tariffs, maintenance and insurance estimates, and end-of-period resale. Keep every monetary input in the same currency.
Choose a consistent equation
Net ownership cost = purchase + setup costs + operating costs over the ownership period − resale. If financing is relevant, account for its interest and fees separately rather than adding all loan repayments on top of the full purchase price. Taxes, parking and tolls should be added consistently where they differ.
Make the uncertainty visible
Calculate at your expected assumptions, then change annual distance, energy prices and resale. A result that changes winner under small input changes is less decisive than one that stays far apart. Also consider capacity, access to charging, reliability evidence and suitability for your daily trips; a cost model does not replace those decisions.
Method and references
Examples use nominal geometry and fixed-price scenarios, with no vehicle-specific specifications implied. See our calculation methodology and editorial policy.
Unit reference: NIST Guide to the SI: conversion factors. Financial examples are arithmetic illustrations, not market-price forecasts.