Anyone have advise on what kind of car has good sound quality for listening to music? I'm looking for something in the 3 series, C Class, Audi A4 size, but want the music to sound good, . . . a well thought-out way of playing songs from the ipod would be a bonus.

I drove a Mercedes C Class, gasoline for a while, sounded good. Driving an Audi Avant A4 diesel now, and it is much noisier, affecting the sound of music. Leasing will expire at the end of the year and I want to pick a car that is quiet and doesn't interrupt music.

Thanks for any tips!