GP2 was an international single-seater championship that ran alongside Formula One as its main feeder series, with powerful, loud cars that became a familiar sound at Grand Prix weekends. Recordings of its engines circulated online as fans and editors ripped race audio for montages, memes and soundboards, where the raw revving stood out from quieter modern hybrid engines. It remains popular because that aggressive, old-school racing noise instantly signals speed and motorsport, even without any picture.