Why does New York radio station sond so good?

I've been on business travel to New jersey for several weeks, and have been impressed at how good classical station 96.3 out of New York City sounds, even on factory stock car radios (various mid-line Nissans, Toyotas, and Subarus). Has anyone else noticed this, and does anyone know why? Have they just selected the very best recordings? Are they playing through a Walker Audio turntable and a stack of EMM / Nagra gear? Or do they just have a bigger klystron than everyone else?