heres the link to the article http://www.earthtimes.org/articles/show/news_press_release,119007.shtml
HD Radio technology is one of the most significant advances in radio broadcasting history, providing listeners with enhanced digital audio quality and clear, noise-free reception, as well as multicasting and on-screen text information. The HD Radio multicasting feature allows FM stations to broadcast multiple channels of digital programming simultaneously on a single frequency.
The HD Radio receiver can be ordered as a stand-alone option for an MSRP of $500 or as part of MINI's Audio Package which also includes an upgraded Hi- Fi radio and Sirius Satellite Radio with a lifetime subscription that stays with the car from owner to owner. This package retails for $1,400. HD Radio broadcasting transmits via a digital signal in AM and FM mode and is subscription free.
"We are pleased to offer our customers the high-quality sound of HD Radio broadcasting in the new MINI Cooper and Cooper S hardtops." said Rich Steinberg, head of MINI USA product strategy. "HD Radio broadcasting now offers our customers an additional level of choices when it comes to premium, in-car audio technology."