There is the "end of line" checklist for major things like seats being installed, interior panels matching (i've seen mis-matched interiors before though), etc. PDI checklists are done at the center- cars don't queue for delivery unless they clear PDI. Detail teams are the ones noticing the smaller defects that may be present.Do the cars have a QC check sheet filled out when the car arrives from the factory? Do they have one filled out during PDI and new owner walkthrough?