Obviously a car isn't a dedicated listening room. Music can be enjoyed by just listening to it and not focusing on all the nuances. Or are you one of those hardcore audiophiles who can't listen to music without a ultra high end sound system?
Also soundstage can be greatly improved by placing speakers on non factory locations because manufacturers usually prioritize packaging above all else. A tweeter placed at the bottom of the A-pillar near the windshield is the worst possible location and sounds like it was put in a tin can.
Background noise in a car also has a solution, turning up the volume. Plus getting quiet tires.