The audio begins with the subtle, yet unmistakable, roar of a large vehicle's engine. It's the sound unmistakably associated with a massive semi, a tractor-trailer, the king of the highway. The sounds of its powerful engine hums, gears shifting, and tires rolling against the asphalt create a vivid image of this behemoth barrelling down the highway, cutting through the air with its imposing size. Suddenly, there's a change in the audio, a slight stutter in the engine's rhythm, a hiccup that suggests something isn't quite right. The semi slows, its engine quieting as it pulls off to the side of the highway. The earlier momentum is lost, replaced by an eerie silence that hangs heavy over the scene. Then, the semi's engine roars back to life, powerful as ever. The shift in gears is more deliberate this time, more cautious. The semi begins to move again, slower than before but still moving. The audio ends on