Year / country / maker / check digit are computed on-device from the VIN standard (ISO 3779/3780). Full specs come live from the U.S. NHTSA vPIC database (free, no account) and need an internet connection. Coverage is best for vehicles sold in North America.
Examples:
Specs come live from the NHTSA vPIC database. Blank cells mean that field isn't reported for that VIN. Green highlights where the two differ. Estimates/records only — confirm with the window sticker and a vehicle history report.