The car is part of the soundtrack
When music comes from a stereo inside a scene, it is diegetic: the characters could hear it too. In Drive, that makes the Chevy Malibu more than a setting for the music. Its speakers turn the car into a small listening space, tying the sound to the driver’s immediate world rather than placing it above the action as an unseen score.
A different kind of tension
That distinction changes how a music cue feels. Background score can guide the audience’s emotions while remaining outside the story. Stereo music belongs to the scene, so it can suggest what a character has chosen to hear, or make a stretch of driving feel private and self-contained. The audience listens alongside the character instead of simply being told how to feel.
It also gives the soundtrack a physical source. The music shares the scene with the engine, road noise, and movement of the car. The result is not just music over a driving scene, but music inside the drive—a small choice that makes the car feel like a place where the story is happening.
