The exact recording behind Camion 57 is not widely documented, and it circulates as a standalone vehicle effect rather than a clip from a known film, show or viral video. Truck horn and engine sounds have long circulated on soundboards because they are instantly recognisable and easy to drop into edits, pranks and reaction videos. The Spanish search term sonido camion also points to use by Spanish-speaking creators looking for a realistic truck noise. Its short length and clear horn make it easy to reuse without trimming, which helps explain its steady appeal.