In this audio, the deep, rhythmic hum of a vehicle's motor can be heard, indicating that it's running but at a standstill. The powerful engine is idling, its finely-tuned components working in harmony. The distinct, throaty growl of the car's motor is steady, a testament to its power and endurance. It's a sound that evokes a sense of anticipation, like the calm before a storm, as if the car is ready to spring into action at any moment. The idle engine sounds like a heart beating, a constant rhythm that underlines the life of the car.