Methodology

SIV decode (AB-123-CD, national format since 2009) and legacy FNI format (1234 AB 75, by department)

Vehicle inspection data: UTAC-OTC dataset via data.economie.gouv.fr (OpenDataSoft) — results, mileage, inspection type

Histovec (ANTS): official full history — incidents, inspections, previous owners — requires owner details

FCA Automobile: lien and opposition check (theft, unpaid lease)

Dataset coverage is partial — not all inspections are in the open dataset yet