About cardata.wiki
A free, open, community-maintained database of vehicle technical specifications — built for anyone who needs reliable car data and doesn't want to pay for it.
What is cardata.wiki?
cardata.wiki is a Wikipedia-style database of car specifications. We cover engine data, performance figures, dimensions, fuel economy, emissions, drivetrain configurations, and more — for over 30,000 vehicle variants across 124 manufacturers.
The data is free. Not free-with-a-catch, not free-for-personal-use-only. Genuinely free, for any purpose, under a Creative Commons CC BY 4.0 licence. Download it as a CSV, call it through our API, embed it in your app, use it for research — whatever you need.
Think of it as the missing open-source alternative to expensive automotive data providers. Whether you're building a comparison tool, writing a university dissertation, powering a car-finding app, or just satisfying your curiosity about the 0–100 time on a 1998 Audi A3 — this is for you.
Community-driven data
Like Wikipedia, cardata.wiki relies on its community to grow and stay accurate. Anyone can create a free account and edit or add specifications directly on any vehicle page. All edits are tracked with a full revision history, so nothing is ever lost and errors can always be corrected.
Want to contribute larger datasets? Registered users can also upload CSV files with bulk spec data. Our AI-assisted review pipeline analyses submissions for consistency and quality before a human administrator approves them. It's designed to make contributing easy while maintaining data integrity.
We seed the database from public domain and openly-licensed sources, and the community takes it from there. If you spot something wrong, please fix it — that's how this works.
The API
We offer a developer API at £20/month. That price exists for one reason only: to cover our hosting and infrastructure costs. We're not trying to monetise the data — the data itself is and always will be free to browse and download manually.
The API gives developers programmatic access to the full dataset with clean, structured JSON responses. It's useful if you're building something that needs live, queryable car data without managing your own database.
Built by
cardata.wiki was designed and built by Olly at dijitul — a digital agency based in the UK. The engineering, architecture, and much of the writing on this site was produced with significant assistance from Claude, an AI assistant made by Anthropic. We think it's important to be upfront about that — AI was a genuine collaborator here, not just a spell-checker.
This project exists because we got tired of car data being locked behind expensive APIs and proprietary databases. The manufacturers publish the specs. The specs are facts. Facts should be free.