MotorCrunch
Trust & transparency

Data Sources

MotorCrunch estimates are built on published government and industry data. This page explains the data layer behind our calculators and lists the real publishers we rely on, with links and the date each was last checked.

Figures are estimates — last reviewed 2026.

How our data layer works

Every estimate is assembled from three layers of assumptions. Each layer draws on published sources, and the combined result is shown with all of its inputs editable on the calculator page itself.

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Country economic assumptions

National figures — fuel and electricity prices, tax treatment, average finance rates and broad cost-of-living indices — set the baseline for each of the four markets we support.

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City cost & insurance indices

City-level adjustments capture how insurance, parking and running costs vary by metro, applied as transparent multipliers on top of the national baseline.

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Vehicle specs & valuations

Per-vehicle data — efficiency ratings, list prices, depreciation curves and cost-to-own figures — drives the model-specific side of every estimate.

Country economic assumptions

City cost & insurance indices

Vehicle specs & valuations

  • Kelley Blue Book

    Kelley Blue Book — new & used vehicle valuations

    Last checked 2026-06-01
  • Edmunds

    Edmunds — vehicle pricing, depreciation & cost-to-own

    Last checked 2026-06-01
  • U.S. Department of Energy / EPA

    FuelEconomy.gov — EPA fuel economy & EV range ratings

    Last checked 2026-06-01

A note on accuracy

We cite these sources to keep our default assumptions realistic, but our figures remain estimates produced by standard formulas — not live data pulled in real time, and not quotes. Source data changes, and we may apply conservative adjustments where a precise figure is not published for a given market. To understand exactly how we turn this data into a number, read our Methodology.

Source names and links are provided for transparency. MotorCrunch is independent and not affiliated with or endorsed by the organizations listed above.