latest update:
[apexdb]

technical guide

How Vehicle Data Is Matched

Understand how vehicle records are matched and sourced.

Built for

Data architects, model-risk reviewers, and analysts responsible for reproducible vehicle-derived decisions.

why it matters

What this helps solve

Vehicle specifications are easy to copy but difficult to reconcile because similarly named trims can differ by market, year, engine, battery, or approval record.

The matcher quality ceiling and canonical variant spine are declared independently from connector-specific source mappings.
Active provenance supersedes older values instead of deleting the evidence needed to reproduce prior releases.

coverage and freshness

Coverage for the current release

Hard external-identifier coverage
98.02%

Share of export-cleared variants linked to at least one hard external identifier — a source-owned key that resolves to exactly one variant, so joins never rely on name or specification matching.

Combined CO2 coverage
37.68%

Share of export-cleared variants with a sourced combined CO2 emissions value in grams per kilometre.

Electric range coverage
2.30%

Share of electric and plug-in hybrid variants with a sourced WLTP electric range value.

Freshness policy
Weekly refresh

Maximum age 8 days. Oldest measured source refresh: 2026-09-15.

Apex is designed for weekly source-aware releases, but automated publication remains pending explicit production activation; each source keeps its measured fetch date and may follow a longer upstream publication cadence.

details

What to evaluate

Start with record grain

Treat a canonical row as a modeled vehicle variant, then verify the identity fields and matching quality needed for the target workflow before joining emissions or EV attributes.

Keep source context

Retain source URLs, field provenance, snapshot version, units, and caveats in downstream tables so reviewers can distinguish a normalized value from a regulatory assertion.

scope boundaries

Keep these limits visible

  • Similar model names are not sufficient evidence of variant equivalence across jurisdictions or model years.
  • Source definitions for peak power, system power, range, and emissions can differ even after unit normalization.
  • Not a regulatory type-approval or emissions-compliance certification.
  • Not a consumer valuation, repair, or vehicle-purchase recommendation service.