VINFoundry
Up to 100 VINs at a time, filtered to the make, model, year, body style and fuel type you need. Pass a seed to get the same batch again — useful for a test fixture that has to stay stable.
74 makes available.
Makes come from NHTSA's VPIC database, which covers US-market vehicles.
Body style and fuel type are sparse in VPIC. Filtering on either excludes every record VPIC has no value for, so a narrow combination can legitimately match nothing.