Decode a 17-character VIN to manufacturer-supplied vehicle metadata via NHTSA's vPIC database. Returns identity (year, make, model, trim, series, body class, manufacturer), assembly plant (city, state, country), engine (cylinders, displacement, HP, fuel type, configuration, engine model), transmission (style, speeds), and body/weight specs. Curated to the ~30 fields agents actually use from vPIC's ~140-field response. Backed by NHTSA.gov; data is public-domain US government records.