As the audio begins, the listeners are immediately immersed in the heart-racing rumble of a used engine. The sound is raw and powerful, emanating from a V8 engine that has seen better days. It's a persistent roar, a testament to the engine's history and years of service. This is not a new, smooth purr; it's an aggressive, deep growl, layered with the unmistakable rattle of well-worn parts. The worn-engine's continuous roar is a symphony of sounds, from the low base of the exhaust to the high treble of the valves opening and closing. Despite its age and wear, the engine's roar is a testament to its enduring power and resilience.