TransparentOpen dataset: used-car prices in Portugal
Median and quartile asking prices for used cars in Portugal, by make, model, year and fuel — plus average mileage. Aggregated open data, free to use with attribution (CC BY 4.0).
What's inside
2,648 make/model/year/fuel combinations, each with the 25th-percentile, median and 75th-percentile asking price (EUR) and the average mileage. Aggregated only — no individual listings, sellers, dates, URLs or sources.
How it's built
Aggregated from a broad sample of about 178,000 used-car listings publicly available in Portugal. Asking prices sit a little above final transaction prices, so read the median as a reference, not a valuation. A cell is published only where there is enough data behind it.
Licence & citation
CC BY 4.0 — free to use, including commercially, with attribution. Cite: TransparentCars, Portugal Used-Car Price Reference (aggregated), Zenodo.