Consistency control between a sample car and the batch requires a single primary record. Use sampling ratio and vehicle selection method as the baseline and keep it in sync with changes to per-vehicle VIN and key configuration and batch changes and exception handling. A passing sample only proves the condition of that one car; batch orders still need key-configuration spot checks and identity and exception records for every vehicle. The records must trace back to sampling ratio and vehicle selection method and per-vehicle VIN and key configuration; when batch changes and exception handling change, revise the documents before deciding whether to proceed.
For consolidating the master table, see Which payment milestones reduce risk for overseas dealers buying Chinese cars?. The batch consistency check holds only for the current configuration and VIN; re-verify after any change in model year, software or batch.