The clip’s embedded metadata identifies it as “Car Door Close Outside,” describing both the action and the recording perspective. It is a practical Foley-style effect rather than a quotation from a film, game, or television program. Sounds like this are commonly added during editing when production audio is missing, unclear, or lacks impact. It remains useful because the compact thud immediately communicates a completed vehicle-door movement. For scenes involving a person arriving before the car action, a door knocking sound effect can provide a related cue.