Unlike a studio-recorded vehicle effect, this sound comes from the long online tradition of people imitating everyday noises with their voices and sharing the results as short clips. Mouth-made car noises are popular in comedy sketches, reaction videos and homemade animations because they are instantly recognisable, easy to time to movement and funnier than a realistic engine. The clip has found a small audience among meme editors who want a low-budget, human touch, and it keeps circulating because anyone can understand the joke without context or subtitles.